Benchmark file generated by bmgpxbmgpx by Ron Parkerbmgpx@parkrrrr.comHT17601 C OF SRhttp://www.geocaching.com/mark/details.asp?PID=HT17601 C OF SRGeocacheGeocache1 C OF SRCA3410Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>1 C OF SR</h1> <b> PID </b> HT1760 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> SAN RAFAEL (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 58 22. (N) 122 31 25. (W) SCALED <br> <b> NAVD 88 </b> 4.70 (+/-2cm) 15.4 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -32.19 (meters) GEOID03 <br> <p> <b> VERT ORDER </b> FIRST CLASS II (See Below) <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the NGVD 29 superseded value. <p>The geoid height was determined by GEOID03. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 665,370. </td><td> 1,822,220. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/92) 3.885 (m) 12.75 (f) ADJ UNCH 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH418029(NAD 83) <br>MARKER: Z = SEE DESCRIPTION <br>SETTING: 36 = SET IN A MASSIVE STRUCTURE <br>SP_SET: FIRE HYDRANT <br>STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>UNK </td><td>MONUMENTED </td><td>CA3410</td></tr><tr><td>1951 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1964 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1951 AT SAN RAFAEL. AT SAN RAFAEL, AT THE INTERSECTION OF FOURTH STREET AND LINCOLN AVENUE, 22 FEET WEST OF THE WEST CURB OF LINCOLN AVENUE, 1 1/2 FEET SOUTH OF THE SOUTH CURB OF FOURTH STREET, AND SET 2.5 FEET ABOVE THE SIDEWALK, IN THE TOP OF A FIRE HYDRANT. <p> <h2>STATION RECOVERY (1964) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1964 RECOVERED IN GOOD CONDITION. HT17151 USEhttp://www.geocaching.com/mark/details.asp?PID=HT17151 USEGeocacheGeocache1 USEDODUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>1 USE</h1> <b> PID </b> HT1715 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> SAN RAFAEL (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 52 50. (N) 122 37 08. (W) SCALED <br> <b> NAVD 88 </b> 115.65 (+/-2cm) 379.4 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -32.53 (meters) GEOID03 <br> <p> <b> VERT ORDER </b> SECOND CLASS 0 (See Below) <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the NGVD 29 superseded value. <p>The geoid height was determined by GEOID03. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 655,330. </td><td> 1,813,620. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/92) 114.827 (m) 376.73 (f) ADJ UNCH 2 0 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEG335926(NAD 83) <br>MARKER: DD = SURVEY DISK <br>SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT <br>SP_SET: SET IN TOP OF CONCRETE MONUMENT <br>STAMPING: B M 1 <br>STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO <br>STABILITY: SURFACE MOTION <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>UNK </td><td>MONUMENTED </td><td>DOD</td></tr><tr><td>1951 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1959 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1951 2.1 MI SE FROM STINSON BEACH. ABOUT 2.1 MILES SOUTHEAST ALONG STATE HIGHWAY 1 FROM THE POST OFFICE AT STINSON BEACH, AT THE OUTSIDE OF A CURVE, ON TOP OF A RIDGE TO THE SOUTH, 46.0 FEET SOUTHWEST OF THE CENTER LINE OF THE HIGHWAY, 43 1/2 FEET SOUTHEAST OF THE SOUTHEAST END OF A WOODEN GUARD RAIL, 10 1/2 FEET NORTHWEST OF THE CENTER OF A WIRE GATE, 0.7 FEET NORTHEAST OF A WIRE FENCE, 2 FEET LOWER THAN THE HIGHWAY, AND SET IN THE TOP OF A CONCRETE POST PROJECTING 0.2 FEET. <p> <h2>STATION RECOVERY (1959) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1959 RECOVERED IN GOOD CONDITION. JT0951113 USGShttp://www.geocaching.com/mark/details.asp?PID=JT0951113 USGSGeocacheGeocache113 USGSUSGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>113 USGS</h1> <b> PID </b> JT0951 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> TOMALES (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 38 14 55. (N) 122 54 43. (W) SCALED <br> <b> NAVD 88 </b> 37.81 (+/-2cm) 124.0 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -31.90 (meters) GEOID03 <br> <p> <b> VERT ORDER </b> THIRD (See Below) <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the NGVD 29 superseded value. <p>The geoid height was determined by GEOID03. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 696,790. </td><td> 1,788,900. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/??) 36.98 (m) 121.3 (f) RESET 3 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH077334(NAD 83) <br>MARKER: P = PIPE CAP <br>SETTING: 17 = SET INTO TOP OF METAL PIPE DRIVEN INTO GROUND <br>SP_SET: METAL PIPE DRIVEN INTO GROUND <br>STAMPING: 113 <br>STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>UNK </td><td>MONUMENTED </td><td>USGS</td></tr><tr><td>1951 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1959 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1951 0.4 MI W FROM TOMALES. ABOUT 0.4 MILES WEST ALONG THE DILLON BEACH ROAD FROM THE BANK OF AMERICA BUILDING AT TOMALES, ON THE SOUTH SLOPE OF A BARE HILL, ABOUT 0.1 MILES EAST OF A CATHOLIC CEMETARY, 243.0 FEET NORTH OF THE CENTER LINE OF THE ROAD, ALONG AN OLD ABANDONED RAILROAD BED, 163.0 FEET NORTHWEST OF AND ACROSS THE OLD RAILROAD BED FROM A T JUNCTION OF FENCES, 59.5 FEET NORTH OF A FENCE, 30.0 FEET NORTH OF THE CENTER LINE OF THE OLD RAILROAD BED, 1.8 FEET WEST OF A WITNESS POST, ABOUT 20.0 FEET HIGHER THAN THE ROAD, ABOUT 4.0 FEET HIGHER THAN THE OLD RAILROAD BED, AND RIVETED ON TOP OF A 3 1/2-INCH IRON PIPE PROJECTING 0.3 FEET. <p> <h2>STATION RECOVERY (1959) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1959 RECOVERED IN GOOD CONDITION. JT252016 F 58 1955http://www.geocaching.com/mark/details.asp?PID=JT252016 F 58 1955GeocacheGeocache16 F 58 1955CGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>16 F 58 1955</h1> <b> PID </b> JT2520 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> NOVATO (1980) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1992)</b> 38 04 12.85219(N) 122 34 28.56931(W) ADJUSTED <br> <b> NAVD 88 </b> 68. (meters) 223. (feet) SCALED <br> <hr> <b> EPOCH DATE </b> 1991.35 <br> <b> LAPLACE CORR</b> -1.96 (seconds) DEFLEC99 <br> <b> GEOID HEIGHT</b> -31.95 (meters) GEOID03 <br> <p> <b> HORZ ORDER </b> SECOND <br> <p>The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in March 1994. The horizontal coordinates are valid at the epoch date displayed above. The epoch date for horizontal control is a decimal equivalence of Year/Month/Day. <p>The orthometric height was scaled from a topographic map. <p>The Laplace correction was computed from DEFLEC99 derived deflections. <p>The geoid height was determined by GEOID03. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td>Units</td><td>Scale Fact</td><td>r Converg.</td></tr><tr><td>SPC CA 3 </td><td> 676,285.967 1</td><td>817,981.463</td><td> MT </td><td>0.99994465</td><td> -1 ' 16 12.5"</td></tr><tr><td>SPC CA 3 </td><td>2,218,781.54 5</td><td>964,494.18 </td><td> sFT </td><td>0.99994465</td><td> -1 ' 16 12.5"</td></tr><tr><td>SPC CA 2 </td><td> 544,959.523 1</td><td>949,576.218</td><td> MT </td><td>1.00007003</td><td> -0 ' 21 44.2"</td></tr><tr><td>SPC CA 2 </td><td>1,787,921.37 6</td><td>396,234.64 </td><td> sFT </td><td>1.00007003</td><td> -0 ' 21 44.2"</td></tr><tr><td>UTM 10 </td><td>4,213,693.391 </td><td>537,313.190</td><td> MT </td><td>0.99961715</td><td> +0 ' 15 44.3"</td></tr> </table> <p> <b> </b> Elev Factor x Scale Factor = Combined Factor <br> <b>SPC CA 3 </b> 0.99999437 x 0.99994465 = 0.99993902 <br> <b>SPC CA 2 </b> 0.99999437 x 1.00007003 = 1.00006440 <br> <b>UTM 10 </b> 0.99999437 x 0.99961715 = 0.99961152 <br> <p> <table border=1><tr><td> </td><td> Primary Azimuth Mark </td><td>Grid Az</td></tr><tr><td>SPC CA 3 </td><td> OLIVE 1955 </td><td>026° 07' 20.1"</td></tr><tr><td>SPC CA 2 </td><td> OLIVE 1955 </td><td>025° 12' 51.8"</td></tr><tr><td>UTM 10 </td><td> OLIVE 1955 </td><td>024° 35' 23.3"</td></tr> </table> <p> <table border=1><tr><td>PID </td><td>Reference Object </td><td> Distance </td><td>Geod. Az </td></tr><tr><td>JT2529</td><td>OLIVE 1955 </td><td>APPROX. 5.2 KM</td><td>024° 51' 07.6"</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> <b> NAD 83(1986)</b> 38 04 12.85197(N) 122 34 28.56645(W) AD(1984.00) 2 <br> <b> NAD 27 </b> 38 04 13.16380(N) 122 34 24.62200(W) AD( ) 2 <br> <p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH3731313693(NAD 83) <br>MARKER: DS = TRIANGULATION STATION DISK <br>SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT <br>SP_SET: SET IN TOP OF CONCRETE MONUMENT <br>STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO <br>STABILITY: SURFACE MOTION <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1955 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1959 </td><td>GOOD </td><td>CGS</td></tr><tr><td>1981 </td><td>GOOD </td><td>CA2460</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY COAST AND GEODETIC SURVEY 1955 (CLA) STATION IS LOCATED ON FIRST HILL WEST OF IGNACIO AT APPROXIMATELY 640 ELEVATION. <p>TO REACH PROCEED FROM U.S. HIGHWAY 101 ALONG ENTRADA DRIVE INTO RAPHAEL VILLAGE TO SAN JOSE BLVD. THENCE 0.4 MILES ALONG SAN JOSE BLVD. TO A GRAVEL ROAD TO THE LEFT. THENCE ALONG SAID GRAVEL ROAD PAST A FARM HOUSE INTO A VALLEY. STATION IS LOCATED ON THE HILL ON THE NORTH SIDE OF THE VALLEY. <p>ALL MARKS ARE STANDARD DISKS SET IN A CONCRETE CYLINDER. <p>STATION MARK IS STAMPED 16F58 1955. NO UNDERGROUND OR WITNESS MARKS WERE ESTABLISHED. <p>REFERENCE MARK 1 IS STAMPED 16F58 NO. 1 1955 <p>REFERENCE MARK 2 IS STAMPED 16F58 NO. 2 1955 <p> <h2>STATION RECOVERY (1959) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1959 (JCM) THE STATION MARK AND REFERENCE MARKS WERE RECOVERED IN GOOD CONDITION AND THE 1955 DESCRIPTION IS ADEQUATE WITH THE FOLLOWING ADDITION-- <p>TO REACH THE STATION FROM THE RAILROAD STATION AT IGNACIO GO SOUTH-SOUTHEAST ON U.S. HIGHWAY 101 FOR 0.5 MILE TO A SIDE ROAD ON THE RIGHT AT A SIGN MARIN GOLF AND COUNTRY CLUB ESTATES. TURN RIGHT ONTO ALAMEDA DEL PRADO AND GO NORTHWEST 0.3 MILE TO AN INTERSECTION. TURN LEFT ONTO ALAMEDA DE LA LOMA AND GO WEST 1.0 MILE TO AN INTERSECTION. TURN LEFT ONTO FAIRWAY DRIVE AND GO SOUTHWEST 0.1 MILE TO AN INTERSECTION. TURN RIGHT ONTO BIRDIE DRIVE AND GO WEST 0.1 MILE TO AN INTERSECTION. TURN LEFT ONTO COUNTRY CLUB DRIVE AND GO WEST-SOUTHWEST 0.2 MILE TO A SIDE STREET ON THE RIGHT. TURN RIGHT ONTO EAGLE DRIVE AND GO NORTHWEST AND WEST 0.4 MILE TO THE END OF THE STREET. PACK WEST-NORTHWEST AND WEST-SOUTHWEST UP A RIDGE AND ALONG A FENCE LINE ABOUT 1/2 MILE TO THE TOP OF THE HILL AND THE STATION. PACKING TIME--ABOUT 25 MINUTES. <p> <h2>STATION RECOVERY (1981) </h2> <p>RECOVERY NOTE BY CITY OF NOVATO CALIFORNIA 1981 (MS) 16F58 1955 RECOVERED GOOD. <p>16F58 NO. 1 1955 RECOVERED GOOD (DIST. FROM STATION IS 30 FEET + OR - NOT 38 FEET). <p>16F58 NO. 2 1955 RECOVERED GOOD. <p>DESCRIPTION IS ADEQUATE - 2 OAK TREES (ONE ON EITHER SIDE) HAVE RECTANGULAR BLAZES AND SHOULD BE TIED TO THE STATION. <p>DISTANCE AND DIRECTION FROM NEAREST TOWN--1.9 MILES WEST OF IGNACIO. JT079216 USGShttp://www.geocaching.com/mark/details.asp?PID=JT079216 USGSGeocacheGeocache16 USGSUSGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>16 USGS</h1> <b> PID </b> JT0792 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> NOVATO (1980) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 38 06 14. (N) 122 33 47. (W) SCALED <br> <b> NAVD 88 </b> 7.30 (+/-2cm) 24.0 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -31.90 (meters) GEOID03 <br> <p> <b> VERT ORDER </b> FIRST CLASS II (See Below) <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the NGVD 29 superseded value. <p>The geoid height was determined by GEOID03. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 680,000. </td><td> 1,819,080. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/92) 6.484 (m) 21.27 (f) ADJ UNCH 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH383174(NAD 83) <br>MARKER: P = PIPE CAP <br>SETTING: 17 = SET INTO TOP OF METAL PIPE DRIVEN INTO GROUND <br>SP_SET: METAL PIPE DRIVEN INTO GROUND <br>STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>UNK </td><td>MONUMENTED </td><td>USGS</td></tr><tr><td>1951 </td><td>MARK NOT FOUND </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1951 0.1 MI S FROM NOVATO. IRON POST .11 MILE SOUTH OF NOVATO DEPOT IN EAST AND WEST FENCE LINE 50 FEET WEST OF MAIN LINE TRACKS, 6 FEET ABOVE TRACKS. NOTE-- A LARGE BUILDING HAS BEEN ERECTED AT THE DESCRIBED LOCATION AND IT IS POSSIBLE THE MARK WAS COVERED OR DESTROYED AT THE TIME OF CONSTRUCTION. HT17634 C OF SRhttp://www.geocaching.com/mark/details.asp?PID=HT17634 C OF SRGeocacheGeocache4 C OF SRCA3410Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>4 C OF SR</h1> <b> PID </b> HT1763 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> SAN RAFAEL (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 58 22. (N) 122 31 38. (W) SCALED <br> <b> NAVD 88 </b> 6.64 (+/-2cm) 21.8 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -32.18 (meters) GEOID03 <br> <p> <b> VERT ORDER </b> FIRST CLASS II (See Below) <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the NGVD 29 superseded value. <p>The geoid height was determined by GEOID03. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 665,380. </td><td> 1,821,900. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/92) 5.828 (m) 19.12 (f) ADJ UNCH 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH415029(NAD 83) <br>MARKER: Z = SEE DESCRIPTION <br>SETTING: 36 = SET IN A MASSIVE STRUCTURE <br>SP_SET: FIRE HYDRANT <br>STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>UNK </td><td>MONUMENTED </td><td>CA3410</td></tr><tr><td>1951 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1964 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1951 AT SAN RAFAEL. AT SAN RAFAEL, AT THE INTERSECTION OF FOURTH AND COURT STREETS, 14.5 FEET WEST OF THE PROLONGATION OF THE WEST CURB OF COURT STREET, 1.3 FEET NORTH OF THE NORTH CURB OF FOURTH STREET, AT THE TOP OF A FIRE HYDRANT. <p> <h2>STATION RECOVERY (1964) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1964 RECOVERED IN GOOD CONDITION. JT08094 USEhttp://www.geocaching.com/mark/details.asp?PID=JT08094 USEGeocacheGeocache4 USEDODUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>4 USE</h1> <b> PID </b> JT0809 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> NOVATO (1980) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 38 03 37. (N) 122 30 53. (W) SCALED <br> <b> NAVD 88 </b> 1.38 (+/-2cm) 4.5 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -32.04 (meters) GEOID03 <br> <p> <b> VERT ORDER </b> FIRST CLASS II (See Below) <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the NGVD 29 superseded value. <p>The geoid height was determined by GEOID03. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 675,070. </td><td> 1,823,210. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/92) 0.57 (m) 1.9 (f) COMPUTED 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH425126(NAD 83) <br>MARKER: DB = BENCH MARK DISK <br>SETTING: 30 = SET IN A LIGHT STRUCTURE <br>SP_SET: WINDOW SILL <br>STAMPING: NO 4 <br>STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>UNK </td><td>MONUMENTED </td><td>DOD</td></tr><tr><td>1944 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1964 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1944 AT HAMILTON FIELD. AT HAMILTON ARMY AIR FIELD, SET IN THE BASE OF WINDOW SILL IN THE NORTHEAST FACE AND AT THE EAST CORNER OF HANGAR NO. 7, 7.3 FEET NORTHWEST OF TH EAST CORNER OF HANGAR, 3.2 FEET ABOVE GROUND LEVEL. A BRONZE U.S.E.D. DISK. <p> <h2>STATION RECOVERY (1964) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1964 RECOVERED IN GOOD CONDITION. JT065247 Mhttp://www.geocaching.com/mark/details.asp?PID=JT065247 MGeocacheGeocache47 MUSGSUSGS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>47 M</h1> <b> PID </b> JT0652 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> VALLEY FORD (1971) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 38 16 36. (N) 122 53 59. (W) SCALED <br> <b> NAVD 88 </b> 8.460 (meters) 27.76 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -31.81 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 8.454 (meters) 27.74 (feet) COMP <br> <b> MODELED GRAV</b> 980,022.3 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS II <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991. <p>The geoid height was determined by GEOID03. <p>The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.). <p>The modeled gravity was interpolated from observed gravity values. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 699,870. </td><td> 1,790,050. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (12/02/92) 7.623 (m) 25.01 (f) ADJUSTED 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH087365(NAD 83) <br>MARKER: DD = SURVEY DISK <br>SETTING: 32 = SET IN A RETAINING WALL OR CONCRETE LEDGE <br>SP_SET: WINGWALL <br>STAMPING: 47 M 24 1933 <br>MARK LOGO: USGS <br>STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO <br>STABILITY: SURFACE MOTION <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1933 </td><td>MONUMENTED </td><td>USGS</td></tr><tr><td>1959 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1973 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1985 </td><td>GOOD </td><td>USPSQD</td></tr><tr><td>1987 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1959 2.5 MI N FROM TOMALES. 2.5 MILES NORTH ALONG STATE HIGHWAY 1 FROM TOMALES, MARIN COUNTY, 123 FEET EAST ALONG THE ROAD TO TWO ROCK FROM THE CENTER OF ITS INTERSECTION WITH STATE HIGHWAY 1, IN THE TOP OF THE WEST RETAINING WALL OF A BRIDGE BUILT IN 1932, AND 21 FEET NORTH OF THE CENTERLINE OF THE ROAD. <p> <h2>STATION RECOVERY (1973) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1973 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1985) </h2> <p>RECOVERY NOTE BY US POWER SQUADRON 1985 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1987) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1987 RECOVERED IN GOOD CONDITION. A NEW DESCRIPTION FOLLOWS. 3.5 KM (2.15 MI) NORTHERLY ALONG STATE HIGHWAY 1 FROM THE JUNCTION OF FIRST STREET IN TOMALES, IN TOP OF AND 4.1 M (13.5 FT) SOUTH OF THE NORTH END OF THE NORTH WINGWALL OF THE WEST ABUTMENT OF A BRIDGE SPANNING A CREEK, 35.7 M (117.1 FT) EAST OF THE CENTERLINE OF THE HIGHWAY, AND 7.0 M (23.0 FT) NORTH OF THE CENTERLINE OF FALLON-TWO ROCK ROAD. THE MARK IS 0.6 M BELOW THE ROAD. JT08115 USEhttp://www.geocaching.com/mark/details.asp?PID=JT08115 USEGeocacheGeocache5 USEUSEUSE Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <b> TIDAL BM </b> This is a Tidal Bench Mark. <br> <h1>5 USE</h1> <b> PID </b> JT0811 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> NOVATO (1980) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 38 03 23. (N) 122 30 45. (W) SCALED <br> <b> NAVD 88 </b> 1.35 (+/-2cm) 4.4 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -32.05 (meters) GEOID03 <br> <p> <b> VERT ORDER </b> FIRST CLASS II (See Below) <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the NGVD 29 superseded value. <p>This Tidal Bench Mark is designated as VM 16198 by the Center for Operational Oceanographic Products and Services. <p>This Tidal Bench Mark is designated as VM 16231 by the Center for Operational Oceanographic Products and Services. <p>The geoid height was determined by GEOID03. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 674,630. </td><td> 1,823,400. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/92) 0.55 (m) 1.8 (f) COMPUTED 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH427121(NAD 83) <br>MARKER: DB = BENCH MARK DISK <br>SETTING: 36 = SET IN A MASSIVE STRUCTURE <br>SP_SET: WINDOW SILL OF HANGAR <br>STAMPING: NO 5 <br>MARK LOGO: USE <br>MAGNETIC: O = OTHER; SEE DESCRIPTION <br>STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL <br>SATELLITE: THE SITE LOCATION WAS REPORTED AS NOT SUITABLE FOR <br>SATELLITE: SATELLITE OBSERVATIONS - June 06, 2000 <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>UNK </td><td>MONUMENTED </td><td>USE</td></tr><tr><td>1944 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1964 </td><td>GOOD </td><td>NGS</td></tr><tr><td>20000606</td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1944 AT HAMILTON FIELD. AT HAMILTON ARMY AIR FIELD, SET IN THE BASE OF WINDOW SILL IN THE NORTHWEST FACE AND AT THE NORTH CORNER OF HANGAR NO. 1, 6.9 FEET SOUTHWEST OF THE NORTH CORNER OF HANGAR, 3 FEET ABOVE GROUND LEVEL. A BRONZE U.S.E.D. DISK. <p> <h2>STATION RECOVERY (1964) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1964 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (2000) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 2000 (MEI) ABOUT 4 MI SOUTHEAST OF THE CITY OF NOVATO. FROM THE INTERSECTION OF HWY 101 AND HWY 37, DRIVE ABOUT 1 MI SOUTH ON HWY 101 TO THE NEXT EXIT, IGNACIO BLVD/ENTRADA DR AND BEL MARIN KEYS BLVD/HAMILTON FIELD, FOLLOWING THE SIGNAGE TO HAMILTON FIELD. AFTER LOOPING AROUND UNDER THE FREEWAY, TURN RIGHT ON BEL MARIN KEYS BLVD AND DRIVE 0.1 MI, STAYING IN THE RIGHT, EXIT ONLY, LANE WHICH PROVIDES ACCESS TO HWY 101 NORTH AND NAVE DR. TURN RIGHT AND CONTINUE STRAIGHT (SOUTH) ON NAVE DRIVE. CONTINUE FOR 0.8 MI TO MAIN GATE DR, A T-ROAD LEFT. TURN LEFT AND DRIVE 0.5 MI, WHERE THE STREET NAME CHANGES TO PALM DRIVE (AFTER THE RAILROAD TRACK UNDERCROSSING). CONTINUE ON PALM DRIVE FOR 0.15 MI, APPROACHING THE TOWN CENTER BUILDING. BEAR RIGHT (SE) ON SOUTH PALM DRIVE AND DRIVE 0.1 MI TO HAMILTON PKWY. TURN RIGHT (SSE) ON HAMILTON PKWY AND DRIVE FOR 0.3 MI TO A CROSSROAD, SAN PABLO AVENUE. TURN LEFT AND DRIVE FOR 0.1 TO A CROSSROAD, HANGER (SIC) AVENUE AND THE ENTRANCE TO THE U.S. COAST GUARD STATION. THE ACCESS IS RESTRICTED- CONTACT THE USCG PACIFIC STRIKE TEAM AT (415) 883-3311. DRIVE THROUGH THE GATE AND CONTINUE STRAIGHT THROUGH THE PARKING LOT FOR 0.1 MI, BEARING LEFT PAST THE HANGARS TO THE CENTER OF THE SOUTHEAST END OF A SOCCER FIELD ON THE LEFT AND NGS MARK USCG HANGAR STRAIGHT AHEAD. TURN LEFT AT THE EAST END OF HANGAR 1 AND DRIVE 0.1 MI TO THE BACK, AND TURN LEFT TO THE MARK ON THE LEFT. THE MARK IS A US ENGINEERING DEPT (NOW ARMY COE) DISK SET IN THE NORTHWEST FACE AT THE NORTHEAST CORNER OF HANGAR 1 IN THE WINDOW SILL 3 FT ABOVE GROUND. IT IS 6.9 FT SW OF THE NE CORNER OF THE HANGAR, 0.5 FT SE OF THE NW EDGE OF THE WINDOW SILL, 130 FT WSW OF BENCH MARK T 736 (PID JT0813). THIS STATION WAS LEVELED IN JUNE, 2000 AS PART OF THE HAMILTON FIELD GEODETIC/TIDAL DATUMS DETERMINATION STUDY. HT3486612 VAhttp://www.geocaching.com/mark/details.asp?PID=HT3486612 VAGeocacheGeocache612 VAUSGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>612 VA</h1> <b> PID </b> HT3486 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> FARALLON ISLANDS (1988) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1992)</b> 37 59 46.94391(N) 123 00 53.46090(W) ADJUSTED <br> <b> NAVD 88 </b> 184. (meters) 604. (feet) SCALED <br> <hr> <b> EPOCH DATE </b> 1991.35 <br> <b> LAPLACE CORR</b> 7.54 (seconds) DEFLEC99 <br> <b> GEOID HEIGHT</b> -33.03 (meters) GEOID03 <br> <p> <b> HORZ ORDER </b> THIRD <br> <p>The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in March 1994. The horizontal coordinates are valid at the epoch date displayed above. The epoch date for horizontal control is a decimal equivalence of Year/Month/Day. <p>The orthometric height was scaled from a topographic map. <p>The Laplace correction was computed from DEFLEC99 derived deflections. <p>The geoid height was determined by GEOID03. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td>Units</td><td>Scale Fact</td><td>r Converg.</td></tr><tr><td>SPC CA 3 </td><td> 669,037.878 1</td><td>779,143.845</td><td> MT </td><td>0.99993832</td><td> -1 ' 32 22.8"</td></tr><tr><td>SPC CA 3 </td><td>2,195,001.77 5</td><td>837,074.43 </td><td> sFT </td><td>0.99993832</td><td> -1 ' 32 22.8"</td></tr><tr><td>UTM 10 </td><td>4,205,412.735 </td><td>498,696.124</td><td> MT </td><td>0.99960002</td><td> -0 ' 00 32.9"</td></tr> </table> <p> <b> </b> Elev Factor x Scale Factor = Combined Factor <br> <b>SPC CA 3 </b> 0.99997634 x 0.99993832 = 0.99991466 <br> <b>UTM 10 </b> 0.99997634 x 0.99960002 = 0.99957637 <br> <p> <table border=1><tr><td> </td><td> Primary Azimuth Mark </td><td>Grid Az</td></tr><tr><td>SPC CA 3 </td><td> POINT REYES RAD COMPASS 2 </td><td>024° 28' 37.7"</td></tr><tr><td>UTM 10 </td><td> POINT REYES RAD COMPASS 2 </td><td>022° 56' 47.8"</td></tr> </table> <p> <table border=1><tr><td>PID </td><td>Reference Object </td><td> Distance </td><td>Geod. Az </td></tr><tr><td>JT2614</td><td>POINT REYES RAD COMPASS 2 </td><td>APPROX. 4.8 KM</td><td>022° 56' 14.9"</td></tr><tr><td>HT3491</td><td>POINT REYES HEAD 3 AZ MK </td><td>294.445 METERS</td><td>049° 50' </td></tr><tr><td>HT3484</td><td>POINT REYES HEAD 3 </td><td> 4.307 METERS</td><td>309° 40' </td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> <b> NAD 83(1986)</b> 37 59 46.92983(N) 123 00 53.44493(W) AD(1984.00) 3 <br> <b> NAD 27 </b> 37 59 47.18710(N) 123 00 49.44880(W) AD( ) 3 <br> <p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SDH9869605413(NAD 83) <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1930 </td><td>MONUMENTED </td><td>USGS</td></tr><tr><td>1957 </td><td>SEE DESCRIPTION </td><td>USN</td></tr><tr><td>1964 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr><tr><td>1968 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY US NAVY 1957 (CDG) STATION WAS RECOVERED IN GOOD CONDITION AS DESCRIBED BY DIST. C.G. OFFICER-1945. POINT REYES HEAD 2 WAS APPARENTLY DESTROYED AND THE ARMY OBSERVATION BUILDING IS STILL STANDING. <p>THE STATION MARK IS A STANDARD C AND GS BENCH MARK SET IN A DRILL HOLE 1 FOOT NORTH OF THE EDGE OF THE CLIFF AND 9 FEET SOUTH OF THE SE CORNER OF THE FORMER ARMY LOOKOUT BUILDING. <p>A REFERENCE MARK FOR POINT REYES HEAD 2 WAS RECOVERED IN GOOD CONDITION 15.83 FEET WEST OF VA BM 612. <p> <h2>STATION RECOVERY (1964) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1964 (PAS) RECOVERED IN GOOD CONDITION. LOCATED ON THE HIGHEST PART OF POINT REYES HEAD ABOUT 1/2 MILE EAST OF POINT REYES LIGHT STATION, ABOUT 100 YARDS EAST OF A WOODEN TANK AND 15 FEET SOUTHEAST OF THE CENTER OF A 10 FOOT SQUARE CONCRETE SLAB. <p>THE STATION IS A U.S. GEOLOGICAL SURVEY DISK STAMPED 612 VA SET IN A DRILL HOLE IN A ROCKY OUTCROP. <p> <h2>STATION RECOVERY (1968) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1968 (RBM) RECOVERED IN GOOD CONDITION, ON THE HIGHEST RIDGE OF POINT REYES HEAD, ABOUT 1/2 MILE EAST-NORTHEAST OF THE POINT REYES LIGHTHOUSE AND ABOUT 100 YARDS EAST OF A WOODEN, WATER TANK. <p>THE STATION IS A U.S. GEOLOGICAL SURVEY DISK STAMPED 612 VA SET ON A SLANT IN A DRILL HOLE IN A ROCKY OUTCROP AND 1 FOOT NORTH OF THE EDGE OF A STEEP, ROCKY BLUFF. <p>TO REACH THE STATION FROM THE POST OFFICE IN INVERNESS, GO NORTH, WEST AND SOUTH ALONG THE SIR FRANCIS DRAKE HIGHWAY FOR 13.9 MILES TO A ROAD FORK, TAKE THE RIGHT FORK, GO 1.2 MILES EASTWARD TOWARD THE LIGHTHOUSE TO A DIRT SIDE ROAD ON THE LEFT, TURN LEFT AND GO ABOUT 50 YARDS TO THE END OF THE ROAD AND A SMALL WHITE BUILDING (USCG PUMP SHACK). PACK UPHILL, SOUTHEAST FOR ABOUT 100 YARDS TO THE TOP OF THE HILL AND THE STATION. <p>THE AZIMUTH MARK IS A STANDARD DISK STAMPED POINT REYES HEAD 3 1960 CEMENTED IN A DRILL HOLE IN A 3 FOOT BY 5 FOOT BOULDER THAT PROJECTS ABOUT 18 INCHES AND IT IS 62 FEET NORTH OF THE CENTERLINE OF THE ROAD AND 7.5 FEET EAST OF A NO TRESPASSING SIGN. TO REACH THE MARK FROM THE END OF TRUCK TRAVEL NEAR THE PUMP SHACK, GO 0.2 MILE EAST ALONG THE MAIN ROAD TO A CURVE AND THE MARK ON THE LEFT. JT07787 RESET 1974http://www.geocaching.com/mark/details.asp?PID=JT07787 RESET 1974GeocacheGeocache7 RESET 1974CADTUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>7 RESET 1974</h1> <b> PID </b> JT0778 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> PETALUMA RIVER (1980) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 38 09 20. (N) 122 33 53. (W) SCALED <br> <b> NAVD 88 </b> 2.50 (+/-2cm) 8.2 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -31.78 (meters) GEOID03 <br> <p> <b> VERT ORDER </b> THIRD (See Below) <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the NGVD 29 superseded value. <p>The geoid height was determined by GEOID03. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 685,730. </td><td> 1,819,060. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (08/19/04) 1.68 (m) 5.5 (f) RESET 3 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH381231(NAD 83) <br>MARKER: DD = SURVEY DISK <br>SETTING: 30 = SET IN A LIGHT STRUCTURE <br>SP_SET: WALL <br>STAMPING: 7 (USGS) RESET 1974 <br>STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY <br>SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR <br>SATELLITE: SATELLITE OBSERVATIONS - October 28, 2003 <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1974 </td><td>MONUMENTED </td><td>CADT</td></tr><tr><td>1975 </td><td>GOOD </td><td>USGS</td></tr><tr><td>1984 </td><td>GOOD </td><td>USPSQD</td></tr><tr><td>20031028</td><td>GOOD </td><td>INDIV</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY US GEOLOGICAL SURVEY 1975 3.5 MI N FROM NOVATO. 3.5 MILES NORTH ALONG THE NORTHWESTERN PACIFIC CO. RAILROAD FROM THE STATION AT NOVATO, 250 FEET NORTH OF THE BURDELL SIDING SIGN, 30 FEET NORTHERLY OF A METAL SHED, SET IN NORTHWESTERLY CORNER OF A WING WALL WHICH SUPPORTS A HYDRAULIC TRAIN DERAILER. <p> <h2>STATION RECOVERY (1984) </h2> <p>RECOVERY NOTE BY US POWER SQUADRON 1984 3.7 MILES NORTH OF NOVATO, CA. 10 RAILS SOUTH TO RV 200 15 RAILS NORTH OF ROAD CROSSING. 11' SOUTHWEST OF SUTHWEST SIDING RAIL, 24' NORTHWEST OF WEIGH HOUSE. IN CONCRETE WALL 1' BELOW RAIL. <p> <h2>STATION RECOVERY (2003) </h2> <p>RECOVERY NOTE BY INDIVIDUAL CONTRIBUTORS 2003 (JCH) RECOVERED IN GOOD CONDITION. AH7156941 4779 TIDAL 8http://www.geocaching.com/mark/details.asp?PID=AH7156941 4779 TIDAL 8GeocacheGeocache941 4779 TIDAL 8CGSNOS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>941 4779 TIDAL 8</h1> <b> PID </b> AH7156 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> OAKLAND WEST (1993) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 48 42. (N) 122 19 51. (W) SCALED <br> <b> NAVD 88 </b> 4.162 (meters) 13.65 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.41 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 4.159 (meters) 13.64 (feet) COMP <br> <b> MODELED GRAV</b> 979,978.6 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> THIRD <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in March 1999. <p>The geoid height was determined by GEOID03. <p>The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.). <p>The modeled gravity was interpolated from observed gravity values. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 647,150. </td><td> 1,838,810. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p>No superseded survey control is available for this station. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEG589851(NAD 83) <br>MARKER: DB = BENCH MARK DISK <br>SETTING: 31 = SET IN A PAVEMENT SUCH AS STREET, SIDEWALK, CURB, ETC. <br>SP_SET: PAVEMENT <br>STAMPING: TIDAL BM 8 1974 <br>MARK LOGO: NOS <br>PROJECTION: FLUSH <br>MAGNETIC: N = NO MAGNETIC MATERIAL <br>STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY <br>SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR <br>SATELLITE: SATELLITE OBSERVATIONS - September 15, 1995 <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1974 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>19950915</td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1995 (JDD) TO REACH THE TIDAL BENCH MARK IN OAKLAND, EXIT FROM THE NORTHBOUND STATE ROAD 17 AT 17TH STREET, THENCE 1.0 MILE (1.6 KM) WEST TO THE MATSON LINE TERMINAL, IN THE PAVEMENT FLUSH AT THE EAST END OF MASTON NAVIGATION COMPANY WHARF (WEST OF CARNATION COMPANY GRAIN ELEVATORS), NEAR THE WST END OF A WOODEN PIER EXTENDING 150 FEET (45.7 M) TO A CONCRETE DOLPHIN, 10.1 FEET (3.1 M) SOUTH OF THE NORTH CONCRETE FACE OF THE WHARF, AND 0.5 FOOT (0.2 M) WEST OF THE EAST CONCRETE FACE OF THE WHARF. HT3537941 4806 C TIDALhttp://www.geocaching.com/mark/details.asp?PID=HT3537941 4806 C TIDALGeocacheGeocache941 4806 C TIDALNOSNOS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <b> TIDAL BM </b> This is a Tidal Bench Mark. <br> <h1>941 4806 C TIDAL</h1> <b> PID </b> HT3537 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 50 56. (N) 122 28 42. (W) SCALED <br> <b> NAVD 88 </b> 2.246 (meters) 7.37 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.45 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 2.245 (meters) 7.37 (feet) COMP <br> <b> MODELED GRAV</b> 979,984.9 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS II <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991. <p>This Tidal Bench Mark is designated as VM 8415 by the Center for Operational Oceanographic Products and Services. <p>The geoid height was determined by GEOID03. <p>The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.). <p>The modeled gravity was interpolated from observed gravity values. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 651,540. </td><td> 1,825,910. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (10/21/93) 1.415 (m) 4.64 (f) ADJUSTED 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEG458891(NAD 83) <br>MARKER: DJ = TIDAL STATION DISK <br>SETTING: 66 = SET IN ROCK OUTCROP <br>SP_SET: BEDROCK <br>STAMPING: 4806 C 1977 <br>MARK LOGO: NOS <br>MAGNETIC: N = NO MAGNETIC MATERIAL <br>STABILITY: A = MOST RELIABLE AND EXPECTED TO HOLD <br>STABILITY: POSITION/ELEVATION WELL <br>SATELLITE: THE SITE LOCATION WAS REPORTED AS NOT SUITABLE FOR <br>SATELLITE: SATELLITE OBSERVATIONS - September 29, 1988 <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1977 </td><td>MONUMENTED </td><td>NOS</td></tr><tr><td>19880929</td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1988 IN SAUSALITO, AT 18 ALEXANDER AVENUE, IN AN AREA OF OUTCROPPING BEDROCK WHICH PARTIALLY SUPPORTS THE FOUNDATION OF A HOUSE UNDER THE SHORN END OF A PIER AT 18 ALEXANDER AVENUE, 16.7 M (54.8 FT) NORTH OF A POINT DIRECTLY UNDER A TRAMWAY, 4.1 M (13.5 FT) NORTHWEST OF THE NORTHWEST PILING OF APARTMENT NUMBER 16 B, AND 1.1 M (3.6 FT) NORTH-NORTHEAST OF THE NORTHEAST CORNER OF THE FOUNDATION OF THE APARTMENT BUILDING. HT1083941 4806 TIDAL 13http://www.geocaching.com/mark/details.asp?PID=HT1083941 4806 TIDAL 13GeocacheGeocache941 4806 TIDAL 13CGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>941 4806 TIDAL 13</h1> <b> PID </b> HT1083 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 50 00. (N) 122 28 42. (W) SCALED <br> <b> NAVD 88 </b> 3.75 (+/-2cm) 12.3 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -32.48 (meters) GEOID03 <br> <p> <b> VERT ORDER </b> FIRST CLASS II (See Below) <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the NGVD 29 superseded value. <p>The geoid height was determined by GEOID03. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 649,820. </td><td> 1,825,870. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/92) 2.925 (m) 9.60 (f) ADJ UNCH 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEG459874(NAD 83) <br>MARKER: X = CHISELED CROSS <br>SETTING: 36 = SET IN A MASSIVE STRUCTURE <br>SP_SET: BUILDING <br>STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>UNK </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1951 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1964 </td><td>SEE DESCRIPTION </td><td>NGS</td></tr><tr><td>19880909</td><td>MARK NOT FOUND </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1951 AT FORT BAKER. AT FORT BAKER, 0.1 MILES SOUTH ALONG MURRAY CIRCLE FROM THE GUARD HOUSE AT THE OLD ABANDONED PUMPING STATION (BUILDING NO. 620), ON THE TOP OF THE SOUTH END OF THE GRANITE SILL AT THE WEST DOOR ENTRANCE TO THE PUMPING STATION, 16 1/2 FEET EAST OF THE CENTER LINE OF MURRY CIRCLE, 2.7 FEET SOUTH OF THE CENTER OF THE DOOR, 0.3 FEET NORTH OF THE NORTH FACE OF THE DOOR FRAME, AND SET 1.5 FEET LOWER THAN THE TOP OF THE CURB. NOTE-- 1964-- THE ENTRANCE HAS BEEN SEALED SHUT RENDERING THE MARK INACCESSIBLE. <p> <h2>STATION RECOVERY (1964) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1964 RECOVERED AS DESCRIBED. <p> <h2>STATION RECOVERY (1988) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 THE TUNNEL ENTRANCE HAS BEEN SEALED. HT1085941 4806 TIDAL 14http://www.geocaching.com/mark/details.asp?PID=HT1085941 4806 TIDAL 14GeocacheGeocache941 4806 TIDAL 14CGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>941 4806 TIDAL 14</h1> <b> PID </b> HT1085 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 49 52. (N) 122 28 37. (W) SCALED <br> <b> NAVD 88 </b> 3.88 (+/-2cm) 12.7 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -32.48 (meters) GEOID03 <br> <p> <b> VERT ORDER </b> FIRST CLASS II (See Below) <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the NGVD 29 superseded value. <p>The geoid height was determined by GEOID03. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 649,570. </td><td> 1,825,990. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/92) 3.05 (m) 10.0 (f) COMPUTED 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEG460872(NAD 83) <br>MARKER: O = CHISELED CIRCLE <br>SETTING: 36 = SET IN A MASSIVE STRUCTURE <br>SP_SET: GRANITE SLAB <br>STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>UNK </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1951 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1964 </td><td>GOOD </td><td>NGS</td></tr><tr><td>19880909</td><td>MARK NOT FOUND </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1951 0.3 MI S FROM FORT BAKER. ABOUT 0.15 MILES SOUTH ALONG MURRAY CIRCLE FROM THE GUARD HOUSE AT FORT BAKER, THENCE 0.15 MILES SOUTH ALONG MOORE ROAD, AT THE SOUTHWEST CORNER OF THE SOUTH ONE OF TWO GOVERNMENT WHARVES, IN THE TOP OF A SLAB OF GRANITE, 36 FEET SOUTHEAST OF THE CENTER LINE OF MOORE ROAD, 20 1/2 FEET EAST OF A POWER LINE POLE WITH A GUY WIRE, 18 1/2 FEET SOUTH OF THE CENTER OF THE WHARF, 1.9 FEET WEST OF THE WEST CORNER OF THE WHARF, 1.4 FEET SOUTHWEST OF THE EAST END OF A 2-INCH IRON PIPE, AND SET ABOUT 1 FOOT HIGHER THAN THE SURFACE OF THE WHARF. NOTE-- THIS SLAB OF GRANITE REFERRED TO ABOVE IS DETACHED FROM THE WHARF AND ABUTMENT AND MAY POSSIBLY LOOSEN IN TIME. <p> <h2>STATION RECOVERY (1964) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1964 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1988) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 MARK NOT FOUND. HT1087941 4806 TIDAL 16http://www.geocaching.com/mark/details.asp?PID=HT1087941 4806 TIDAL 16GeocacheGeocache941 4806 TIDAL 16CGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>941 4806 TIDAL 16</h1> <b> PID </b> HT1087 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 49 32. (N) 122 28 41. (W) SCALED <br> <b> NAVD 88 </b> 8.65 (+/-2cm) 28.4 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -32.50 (meters) GEOID03 <br> <p> <b> VERT ORDER </b> FIRST CLASS II (See Below) <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the NGVD 29 superseded value. <p>The geoid height was determined by GEOID03. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 648,950. </td><td> 1,825,880. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/92) 7.819 (m) 25.65 (f) ADJ UNCH 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEG459865(NAD 83) <br>MARKER: DJ = TIDAL STATION DISK <br>SETTING: 30 = SET IN A LIGHT STRUCTURE <br>SP_SET: STEP <br>STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>UNK </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1964 </td><td>GOOD </td><td>NGS</td></tr><tr><td>19880923</td><td>MARK NOT FOUND </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1964 0.8 MI S FROM FORT BAKER. AT FORT BAKER, 0.8 MILE SOUTH OF THE GUARD HOUSE, ABOUT 60 YARDS EAST OF THE NORTHEAST CORNER OF THE NORTH TOWER OF THE GOLDEN GATE BRIDGE, AT THE LIME POINT SIGNAL HOUSE, 74 FEET NORTHWEST OF THE FOUNDATION OF THE NORTHWEST CORNER OF THE MAIN LIGHTHOUSE BUILDING (WHICH WAS REMOVED IN 1963), ON THE TOP AND NORTHEAST END OF THE TOP STEP OF A CONCRETE STAIRWAY, 30.5 FEET NORTH OF TIDAL 17, AND 1.1 FEET NORTHWEST OF AN IRON GUARD RAIL POST. <p> <h2>STATION RECOVERY (1988) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 MARK NOT FOUND. HT1088941 4806 TIDAL 17http://www.geocaching.com/mark/details.asp?PID=HT1088941 4806 TIDAL 17GeocacheGeocache941 4806 TIDAL 17CGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>941 4806 TIDAL 17</h1> <b> PID </b> HT1088 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 49 32. (N) 122 28 41. (W) SCALED <br> <b> NAVD 88 </b> 9.58 (+/-2cm) 31.4 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -32.50 (meters) GEOID03 <br> <p> <b> VERT ORDER </b> FIRST CLASS II (See Below) <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the NGVD 29 superseded value. <p>The geoid height was determined by GEOID03. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 648,950. </td><td> 1,825,880. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/92) 8.746 (m) 28.69 (f) ADJ UNCH 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEG459865(NAD 83) <br>MARKER: DJ = TIDAL STATION DISK <br>SETTING: 66 = SET IN ROCK OUTCROP <br>SP_SET: BEDROCK <br>STABILITY: A = MOST RELIABLE AND EXPECTED TO HOLD <br>STABILITY: POSITION/ELEVATION WELL <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>UNK </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1964 </td><td>GOOD </td><td>NGS</td></tr><tr><td>19880909</td><td>MARK NOT FOUND </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1964 0.8 MI S FROM FORT BAKER. AT FORT BAKER, 0.8 MILE SOUTH OF THE GUARD HOUSE, ABOUT 60 YARDS EAST OF THE NORTHEAST CORNER OF THE NORTH TOWER OF THE GOLDEN GATE BRIDGE, AT THE LIME POINT SIGNAL HOUSE, 43 FEET NORTHWEST OF THE FOUNDATION OF THE NORTHWEST CORNER OF THE MAIN LIGHTHOUSE BUILDING (WHICH WAS REMOVED IN 1963), 30.3 FEET SOUTHEAST OF THE TOP STEP OF A CONCRETE STAIRWAY, 1.8 FEET SOUTHWEST OF THE SOUTHWEST EDGE OF THE SIDEWALK, AND SET IN THE TOP OF A LARGE MASS OF BEDROCK. <p> <h2>STATION RECOVERY (1988) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 MARK NOT FOUND. HT1076941 4806 TIDAL 25 RESEThttp://www.geocaching.com/mark/details.asp?PID=HT1076941 4806 TIDAL 25 RESETGeocacheGeocache941 4806 TIDAL 25 RESETCGSCGS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>941 4806 TIDAL 25 RESET</h1> <b> PID </b> HT1076 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 50 29. (N) 122 28 38. (W) SCALED <br> <b> NAVD 88 </b> 33.754 (meters) 110.74 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.46 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 33.732 (meters) 110.67 (feet) COMP <br> <b> MODELED GRAV</b> 979,985.8 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS II <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991. <p>The geoid height was determined by GEOID03. <p>The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.). <p>The modeled gravity was interpolated from observed gravity values. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 650,710. </td><td> 1,825,990. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (10/21/93) 32.923 (m) 108.01 (f) ADJUSTED 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEG459883(NAD 83) <br>MARKER: DJ = TIDAL STATION DISK <br>SETTING: 32 = SET IN A RETAINING WALL OR CONCRETE LEDGE <br>SP_SET: RETAINING WALL <br>STAMPING: NO 25 RESET 1936 <br>MARK LOGO: CGS <br>STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO <br>STABILITY: SURFACE MOTION <br>SATELLITE: THE SITE LOCATION WAS REPORTED AS NOT SUITABLE FOR <br>SATELLITE: SATELLITE OBSERVATIONS - September 29, 1988 <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1936 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1956 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1964 </td><td>GOOD </td><td>NGS</td></tr><tr><td>19880929</td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1956 1.1 MI S FROM SAUSALITO. 1.1 MILES SOUTH ALONG THE SAUSALITO-FORT BAKER ROAD FROM THE CITY HALL AT SAUSALITO, 0.5 MILE NORTH OF BENCH MARK N 108, IN R 6 W, T 1 S, IN THE TOP OF THE EXTREME SOUTHEAST END OF A LONG SLOPING CONCRETE RETAINING WALL, NEAR THE EAST GATE TO FORT BAKER MILITARY RESERVATION, 204 FEET NORTHWEST OF THE APPROXIMATE CENTER OF THE Y JUNCTION OF A ROAD LEADING NORTH TO THE SAUSALITO SEWAGE DISPOSAL PLANT, 133.4 FEET SOUTHEAST OF THE SOUTH CORNER OF A CONCRETE UNDERPASS, 20 1/2 FEET SOUTHWEST OF THE CENTER LINE OF THE ROAD, AND ABOUT 1 FOOT HIGHER THAN THE ROAD. <p> <h2>STATION RECOVERY (1964) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1964 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1988) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 RECOVERED IN GOOD CONDITION. A NEW TO REACH FOLLOWS. 1.8 KM (1.10 MI) SOUTHEASTERLY ALONG SAUSALITO-BAKER ROAD FROM THE JUNCTION OF PARK STREET IN SAUSALITO. DELETE--0.5 MILE NORTH OF BENCH MARK N 108, AND NEAR THE EAST GATE TO FORT BAKER MILITARY RESERVATION. HT1073941 4806 TIDAL 29http://www.geocaching.com/mark/details.asp?PID=HT1073941 4806 TIDAL 29GeocacheGeocache941 4806 TIDAL 29CGSCGS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <b> TIDAL BM </b> This is a Tidal Bench Mark. <br> <h1>941 4806 TIDAL 29</h1> <b> PID </b> HT1073 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 51 09. (N) 122 28 44. (W) SCALED <br> <b> NAVD 88 </b> 3.437 (meters) 11.28 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.44 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 3.434 (meters) 11.27 (feet) COMP <br> <b> MODELED GRAV</b> 979,985.9 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS II <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991. <p>This Tidal Bench Mark is designated as VM 8413 by the Center for Operational Oceanographic Products and Services. <p>The geoid height was determined by GEOID03. <p>The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.). <p>The modeled gravity was interpolated from observed gravity values. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 651,940. </td><td> 1,825,870. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (10/21/93) 2.607 (m) 8.55 (f) ADJUSTED 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEG458895(NAD 83) <br>MARKER: DJ = TIDAL STATION DISK <br>SETTING: 32 = SET IN A RETAINING WALL OR CONCRETE LEDGE <br>SP_SET: RETAINING WALL <br>STAMPING: 29 1936 <br>MARK LOGO: CGS <br>STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO <br>STABILITY: SURFACE MOTION <br>SATELLITE: THE SITE LOCATION WAS REPORTED AS NOT SUITABLE FOR <br>SATELLITE: SATELLITE OBSERVATIONS - September 08, 1988 <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1936 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1956 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1964 </td><td>GOOD </td><td>NGS</td></tr><tr><td>19880908</td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1956 AT SAUSALITO. AT SAUSALITO, IN R 6 W, T 1 S, SET VERTICALLY IN THE NORTH FACE OF A CONCRETE RETAINING WALL AT 485 BRIDGEWAY STREET, 27 FEET WEST OF THE CENTER LINE OF THE STREET, 1.7 FEET NORTHWEST OF THE NORTHEAST CORNER OF THE NORTH ONE OF TWO LARGE CONCRETE PYLONS, 0.8 FOOT ABOVE THE GROUND, AND ABOUT 1 FOOT HIGHER THAN THE STREET. <p> <h2>STATION RECOVERY (1964) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1964 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1988) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 RECOVERED IN GOOD CONDITION. HT1074941 4806 TIDAL 30http://www.geocaching.com/mark/details.asp?PID=HT1074941 4806 TIDAL 30GeocacheGeocache941 4806 TIDAL 30CGSCGS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <b> TIDAL BM </b> This is a Tidal Bench Mark. <br> <h1>941 4806 TIDAL 30</h1> <b> PID </b> HT1074 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 51 22. (N) 122 28 47. (W) SCALED <br> <b> NAVD 88 </b> 4.884 (meters) 16.02 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.43 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 4.881 (meters) 16.01 (feet) COMP <br> <b> MODELED GRAV</b> 979,987.6 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS II <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991. <p>This Tidal Bench Mark is designated as VM 8414 by the Center for Operational Oceanographic Products and Services. <p>The geoid height was determined by GEOID03. <p>The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.). <p>The modeled gravity was interpolated from observed gravity values. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 652,350. </td><td> 1,825,800. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (10/21/93) 4.055 (m) 13.30 (f) ADJUSTED 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEG457899(NAD 83) <br>MARKER: DJ = TIDAL STATION DISK <br>SETTING: 34 = SET IN THE FOOTINGS OF SMALL/MEDIUM STRUCTURES <br>SP_SET: CONCRETE BASE <br>STAMPING: 30 1936 <br>MARK LOGO: CGS <br>STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO <br>STABILITY: SURFACE MOTION <br>SATELLITE: THE SITE LOCATION WAS REPORTED AS NOT SUITABLE FOR <br>SATELLITE: SATELLITE OBSERVATIONS - September 08, 1988 <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1936 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1956 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1964 </td><td>GOOD </td><td>NGS</td></tr><tr><td>19880908</td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1956 AT SAUSALITO. AT SAUSALITO, IN R 6 W, T 1 S, AT THE SOUTHWEST SIDE OF THE CITY PARK, IN TOP OF THE SOUTH CORNER OF THE CONCRETE BASE FOR THE NORTHWEST ONE OF TWO ORNEMENTAL CONCRETE ELEPHANTS, 29 1/2 FEET NORTHEAST OF THE CENTER LINE OF BRIDGEWAY STREET, AND ABOUT 3 FEET HIGHER THAN THE STREET. <p> <h2>STATION RECOVERY (1964) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1964 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1988) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 RECOVERED IN GOOD CONDITION. HT1070941 4819 TIDAL 2http://www.geocaching.com/mark/details.asp?PID=HT1070941 4819 TIDAL 2GeocacheGeocache941 4819 TIDAL 2CGSCGS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <b> TIDAL BM </b> This is a Tidal Bench Mark. <br> <h1>941 4819 TIDAL 2</h1> <b> PID </b> HT1070 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 51 33. (N) 122 29 07. (W) SCALED <br> <b> NAVD 88 </b> 4.996 (meters) 16.39 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.43 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 4.993 (meters) 16.38 (feet) COMP <br> <b> MODELED GRAV</b> 979,987.1 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS II <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991. <p>This Tidal Bench Mark is designated as VM 8431 by the Center for Operational Oceanographic Products and Services. <p>The geoid height was determined by GEOID03. <p>The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.). <p>The modeled gravity was interpolated from observed gravity values. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 652,700. </td><td> 1,825,320. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (10/21/93) 4.167 (m) 13.67 (f) ADJUSTED 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEG452903(NAD 83) <br>MARKER: DJ = TIDAL STATION DISK <br>SETTING: 34 = SET IN THE FOOTINGS OF SMALL/MEDIUM STRUCTURES <br>SP_SET: FOUNDATION WALL <br>STAMPING: SAUSALITO NO 2 1917 <br>MARK LOGO: CGS <br>STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL <br>SATELLITE: THE SITE LOCATION WAS REPORTED AS NOT SUITABLE FOR <br>SATELLITE: SATELLITE OBSERVATIONS - September 08, 1988 <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1917 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1964 </td><td>GOOD </td><td>NGS</td></tr><tr><td>19880908</td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1964 AT SAUSALITO. AT SAUSALITO, AT THE EAST CORNER OF THE INTERSECTION OF PINE AND CALEDONIA STREETS, SET VERTICALLY IN THE NORTHWEST BRICK FACE OF A BUILDING OCCUPIED BY THE CALEDONIA MARKET, 6.0 FEET NORTHEAST OF THE WEST CORNER OF THE BUILDING, AND 1.0 FOOT ABOVE THE SIDEWALK. <p> <h2>STATION RECOVERY (1988) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 RECOVERED IN GOOD CONDITION. HT1068941 4819 TIDAL 31http://www.geocaching.com/mark/details.asp?PID=HT1068941 4819 TIDAL 31GeocacheGeocache941 4819 TIDAL 31CGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>941 4819 TIDAL 31</h1> <b> PID </b> HT1068 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 51 49. (N) 122 29 36. (W) SCALED <br> <b> NAVD 88 </b> 3.58 (+/-2cm) 11.7 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -32.42 (meters) GEOID03 <br> <p> <b> VERT ORDER </b> FIRST CLASS II (See Below) <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the NGVD 29 superseded value. <p>The geoid height was determined by GEOID03. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 653,200. </td><td> 1,824,620. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/92) 2.749 (m) 9.02 (f) ADJ UNCH 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEG445908(NAD 83) <br>MARKER: DJ = TIDAL STATION DISK <br>SETTING: 36 = SET IN A MASSIVE STRUCTURE <br>SP_SET: CONCRETE SLAB <br>STAMPING: 31 1948 <br>STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1948 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1964 </td><td>GOOD </td><td>NGS</td></tr><tr><td>19880920</td><td>MARK NOT FOUND </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1964 1 MI NW FROM SAUSALITO. 0.9 MILE NORTHWEST ALONG THE NORTHWESTERN PACIFIC RAILROAD TRACK FROM THE CITY HALL AT SAUSALITO, THENCE 0.1 MILE NORTHEAST ALONG AN ASPHALTED ROAD, AT THE CROSSING OF A SPUR TRACK, IN THE TOP OF THE SOUTH CORNER OF A CONCRETE SLAB 0.1 FOOT BELOW THE ASPHALT PAVEMENT, 121.3 FEET NORTHWEST OF BENCH MARK TIDAL 32, 46.2 FEET EAST OF THE SOUTHEAST GATE POST OF A GATE TO THE U.S. CORPS OF ENGINEERS LABORATORY YARD, 21.9 FEET SOUTH OF THE WEST CORNER OF THE LABORATORY STORAGE BUILDING, 15.8 FEET NORTHEAST OF THE NORTHEAST RAIL OF THE SPUR TRACK, AND 8.4 FEET SOUTHWEST OF THE SOUTHWEST SIDE OF THE LABORATORY STORAGE BUILDING. <p> <h2>STATION RECOVERY (1988) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 THE STEM OF THE DISK IS ALL THAT REMAINS. HT1067941 4819 TIDAL 32http://www.geocaching.com/mark/details.asp?PID=HT1067941 4819 TIDAL 32GeocacheGeocache941 4819 TIDAL 32CGSCGS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <b> TIDAL BM </b> This is a Tidal Bench Mark. <br> <h1>941 4819 TIDAL 32</h1> <b> PID </b> HT1067 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1992)</b> 37 51 47.83216(N) 122 29 35.97062(W) ADJUSTED <br> <b> NAVD 88 </b> 3.569 (meters) 11.71 (feet) ADJUSTED <br> <hr> <b> EPOCH DATE </b> 1997.30 <br> <b> X </b> -2,708,426.656 (meters) COMP <br> <b> Y </b> -4,252,471.411 (meters) COMP <br> <b> Z </b> 3,893,457.438 (meters) COMP <br> <b> LAPLACE CORR</b> 0.79 (seconds) DEFLEC99 <br> <b> ELLIP HEIGHT</b> -28.86 (meters) (07/10/98) GPS OBS <br> <b> GEOID HEIGHT</b> -32.42 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 3.566 (meters) 11.70 (feet) COMP <br> <b> MODELED GRAV</b> 979,971.3 (mgal) NAVD 88 <br> <p> <b> HORZ ORDER </b> FIRST <br> <b> VERT ORDER </b> FIRST CLASS II <br> <b> ELLP ORDER </b> FOURTH CLASS I <br> <p>The horizontal coordinates were established by GPS observations and adjusted by the National Geodetic Survey in July 1998. The horizontal coordinates are valid at the epoch date displayed above. The epoch date for horizontal control is a decimal equivalence of Year/Month/Day. <p>The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991. <p>This Tidal Bench Mark is designated as VM 8432 by the Center for Operational Oceanographic Products and Services. <p>The X, Y, and Z were computed from the position and the ellipsoidal ht. <p>The Laplace correction was computed from DEFLEC99 derived deflections. <p>The ellipsoidal height was determined by GPS observations and is referenced to NAD 83. <p>The geoid height was determined by GEOID03. <p>The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.). <p>The modeled gravity was interpolated from observed gravity values. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td>Units</td><td>Scale Fact</td><td>r Converg.</td></tr><tr><td>SPC CA 3 </td><td> 653,167.053 1</td><td>824,622.168</td><td> MT </td><td>0.99993109</td><td> -1 ' 13 13.4"</td></tr><tr><td>SPC CA 3 </td><td>2,142,932.24 5</td><td>986,281.23 </td><td> sFT </td><td>0.99993109</td><td> -1 ' 13 13.4"</td></tr><tr><td>UTM 10 </td><td>4,190,767.525 </td><td>544,567.297</td><td> MT </td><td>0.99962446</td><td> +0 ' 18 39.6"</td></tr> </table> <p> <b> </b> Elev Factor x Scale Factor = Combined Factor <br> <b>SPC CA 3 </b> 1.00000453 x 0.99993109 = 0.99993562 <br> <b>UTM 10 </b> 1.00000453 x 0.99962446 = 0.99962899 <br> <p> <h2>Superseded Survey Control</h2>
<p> <b> NAD 83(1992)</b> 37 51 47.83019(N) 122 29 35.96934(W) AD(1995.42) 1 <br> ELLIP H (12/22/97) -28.80 (m) GP( ) 4 1 <br>
NAVD 88 (12/22/97) 3.57 (m) 11.7 (f) LEVELING 3 <br>
NGVD 29 (10/21/93) 2.740 (m) 8.99 (f) ADJUSTED 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEG4456790768(NAD 83) <br>MARKER: DJ = TIDAL STATION DISK <br>SETTING: 35 = SET IN A MAT FOUNDATION OR CONCRETE SLAB OTHER THAN <br>WITH SETTING: PAVEMENT <br>SP_SET: CONCRETE SLAB <br>STAMPING: 32 1948 <br>MARK LOGO: CGS <br>MAGNETIC: N = NO MAGNETIC MATERIAL <br>STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO <br>STABILITY: SURFACE MOTION <br>SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR <br>SATELLITE: SATELLITE OBSERVATIONS - September 15, 1995 <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1948 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1964 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1965 </td><td>GOOD </td><td>NGS</td></tr><tr><td>19880908</td><td>GOOD </td><td>NGS</td></tr><tr><td>19950915</td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1964 1 MI NW FROM SAUSALITO. 0.9 MILE NORTHWEST ALONG THE NORTHWESTERN PACIFIC RAILROAD TRACK FROM THE CITY HALL AT SAUSALITO, THENCE 0.1 MILE NORTHEAST ALONG AN ASPHALTED ROAD, AT THE CROSSING OF A SPUR TRACK, 39.8 FEET SOUTHEAST OF THE SOUTH CORNER OF THE LABORATORY STORAGE BUILDING, 36.5 FEET NORTHEAST OF THE EAST CORNER OF A CHAIN-LINK FENCE AT THE U.S. CORPS OF ENGINEERS LABORATORY YARD, 14 FEET NORTHWEST OF THE PROJECTED CENTERLINE OF THE ROAD, 11.5 FEET NORTHEAST OF THE NORTHEAST RAIL OF THE SPUR TRACK, IN THE TOP OF THE SOUTH CORNER OF AN 8 X 30-FOOT CONCRETE SLAB, 0.5 FOOT NORTH OF THE SOUTH CORNER OF THE SLAB, ABOUT LEVEL WITH THE TRACK, AND FLUSH WITH THE GROUND. <p> <h2>STATION RECOVERY (1965) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1965 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1988) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 RECOVERED IN GOOD CONDITION. A NEW TO REACH FOLLOWS. 1.5 KM (0.95 MI) NORTHWESTERLY ALONG BRIDGEWAY BOULEVARD FROM THE JUNCTION OF PARK STREET IN SAUSALITO, THENCE 0.2 KM (0.10 MI) NORTHEAST ALONG LIBERTY SHIP WAY. <p> <h2>STATION RECOVERY (1995) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1995 (JDD) THE STATION WAS RECOVERED. TO REACH THE STATION FROM THE INTERSECTION OF BRIDGEWAY AND PRINCESS STREETS IN DOWNTOWN SAUSALITO GO NORTHWESTERLY ON BRIDGEWAY FOR 0.95 MI (1.53 KM) TO AN INTERSECTION, EASTERBY STREET TO THE SOUTHWEST AND MARINSHIP WAY (UNSIGNED) TO THE NORTHEAST. TURN RIGHT AND GO NORTHEAST ON MARINSHIP WAY FOR 0.05 MI (0.08 KM) TO A SIDE ROAD RIGHT, LIBERTY SHIP WAY. TURN RIGHT AND GO SOUTHEAST ON LIBERTY SHIP WAY FOR 0.05 MI (0.08 KM) TO A T-INTERSECTION AND THE STATION ON THE LEFT IN THE NORTH QUADRANT OF THE INTERSECTION. HT1066941 4819 TIDAL 33http://www.geocaching.com/mark/details.asp?PID=HT1066941 4819 TIDAL 33GeocacheGeocache941 4819 TIDAL 33CGSCGS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <b> TIDAL BM </b> This is a Tidal Bench Mark. <br> <h1>941 4819 TIDAL 33</h1> <b> PID </b> HT1066 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 51 46. (N) 122 29 34. (W) SCALED <br> <b> NAVD 88 </b> 3.534 (meters) 11.59 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.43 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 3.532 (meters) 11.59 (feet) COMP <br> <b> MODELED GRAV</b> 979,971.3 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS II <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991. <p>This Tidal Bench Mark is designated as VM 8433 by the Center for Operational Oceanographic Products and Services. <p>The geoid height was determined by GEOID03. <p>The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.). <p>The modeled gravity was interpolated from observed gravity values. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 653,110. </td><td> 1,824,670. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (10/21/93) 2.706 (m) 8.88 (f) ADJUSTED 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEG446907(NAD 83) <br>MARKER: DJ = TIDAL STATION DISK <br>SETTING: 35 = SET IN A MAT FOUNDATION OR CONCRETE SLAB OTHER THAN <br>WITH SETTING: PAVEMENT <br>SP_SET: CONCRETE SLAB <br>STAMPING: 33 1948 <br>MARK LOGO: CGS <br>STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY <br>SATELLITE: THE SITE LOCATION WAS REPORTED AS NOT SUITABLE FOR <br>SATELLITE: SATELLITE OBSERVATIONS - September 08, 1988 <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1948 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1964 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1965 </td><td>GOOD </td><td>NGS</td></tr><tr><td>19880908</td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1964 1 MI NW FROM SAUSALITO. 0.9 MILE NORTHWEST ALONG THE NORTHWESTERN PACIFIC RAILROAD TRACK FROM THE CITY HALL AT SAUSALITO, THENCE 0.1 MILE NORTHEAST ALONG AN ASPHALTED ROAD, AT THE CROSSING OF A SPUR TRACK, IN TOP OF A CONCRETE SLAB FLUSH WITH AND NEAR THE CENTER OF THE ROAD, 60.6 FEET SOUTH OF BENCH MARK TIDAL 32, 44.0 FEET SOUTHEAST OF THE SOUTHEAST RAIL OF THE SPUR TRACK, 34.7 FEET SOUTH OF THE EAST FENCE CORNER OF A CHAIN-LINK FENCE AT THE U.S. CORPS OF ENGINEERS LABORATORY YARD, AND 20.0 FEET NORTHWEST OF A FENCE LINE. <p> <h2>STATION RECOVERY (1965) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1965 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1988) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 RECOVERED IN GOOD CONDITION. A NEW TO REACH FOLLOWS. 1.5 KM (0.95 MI) NORTHWESTERLY ALONG BRIDGEWAY BOULEVARD FROM THE JUNCTION OF PARK STREET IN SAUSALITO, THENCE 0.2 KM (0.10 MI) NORTHEAST ALONG LIBERTY SHIP WAY. HT1755941 4873 TIDAL 11http://www.geocaching.com/mark/details.asp?PID=HT1755941 4873 TIDAL 11GeocacheGeocache941 4873 TIDAL 11CGSCGS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>941 4873 TIDAL 11</h1> <b> PID </b> HT1755 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> SAN RAFAEL (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 57 45. (N) 122 30 35. (W) SCALED <br> <b> NAVD 88 </b> 1.975 (meters) 6.48 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.22 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 1.974 (meters) 6.48 (feet) COMP <br> <b> MODELED GRAV</b> 979,998.6 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS II <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991. <p>The geoid height was determined by GEOID03. <p>The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.). <p>The modeled gravity was interpolated from observed gravity values. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 664,210. </td><td> 1,823,420. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/92) 1.161 (m) 3.81 (f) ADJ UNCH 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH430017(NAD 83) <br>MARKER: DJ = TIDAL STATION DISK <br>SETTING: 32 = SET IN A RETAINING WALL OR CONCRETE LEDGE <br>SP_SET: WINGWALL <br>STAMPING: 11 1936 <br>MARK LOGO: CGS <br>STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO <br>STABILITY: SURFACE MOTION <br>SATELLITE: THE SITE LOCATION WAS REPORTED AS NOT SUITABLE FOR <br>SATELLITE: SATELLITE OBSERVATIONS - April 21, 2004 <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1936 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1956 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1964 </td><td>GOOD </td><td>NGS</td></tr><tr><td>19880929</td><td>GOOD </td><td>NGS</td></tr><tr><td>20040421</td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1956 1 MI SE FROM SAN RAFAEL. 0.1 MILE EAST ALONG THIRD STREET FROM THE NORTHWESTERN PACIFIC RAILROAD STATION AT SAN RAFAEL, THENCE 0.1 MILE SOUTH ALONG IRWIN STREET, THENCE 0.8 MILE SOUTHEAST ALONG FRANCISCO BOULEVARD, AT A DRAINAGE CANAL, AT 4- BY 4-FOOT CONCRETE BOX CULVERT A-2.23, IN TOP OF THE TOP STEP OF THE EAST WING WALL, 120 FEET SOUTHEAST OF AND ACROSS THE BOULEVARD FROM THE SOUTHEAST CORNER OF A BUILDING OCCUPIED BY THE DAVIS SAW SERVICE (807 FRANCISCO BOULEVARD), 105 FEET NORTHEAST OF THE CENTER LINE OF THE NORTH BOUND TRAFFIC LANE OF U.S. HIGHWAY 101, 40 FEET SOUTH OF THE CENTER LINE OF THE BOULEVARD, 16.6 FEET SOUTH OF A WIRE FENCE, AND ABOUT LEVEL WITH THE BOULEVARD. <p> <h2>STATION RECOVERY (1964) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1964 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1988) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 RECIVERED IN GOOD CONDITION WITH THE FOLLOWING EXCEPTIONS. ADD--AT 807 FRANCISCO BOULEVARD, AND 35.5 M (116.5 FT) SOUTHEAST OF THE SOUTHEAST CORNER OF THE BUILDING. DELETE--120 FEET SOUTHEAST OF AND ACROSS THE BOULEVARD FROM THE SOUTHEAST CORNER OF A BUILDING OCCUPIED BY THE DAVIS SAW SERVICE. <p> <h2>STATION RECOVERY (2004) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 2004 (MEI) THIS STATION IS NOT SUITABLE FOR GPS OBSERVATIONS. ADJACENT BUSHES BLOCK THE VIEW AND IT IS ON THE FREEWAY (OTHER) SIDE OF THE FENCE FROM FRANCISCO BLVD. HT1754941 4873 TIDAL 17http://www.geocaching.com/mark/details.asp?PID=HT1754941 4873 TIDAL 17GeocacheGeocache941 4873 TIDAL 17CGSCGS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>941 4873 TIDAL 17</h1> <b> PID </b> HT1754 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> SAN RAFAEL (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1992)</b> 37 57 55.93329(N) 122 30 52.82759(W) ADJUSTED <br> <b> NAVD 88 </b> 2.908 (meters) 9.54 (feet) ADJUSTED <br> <hr> <b> EPOCH DATE </b> 1997.30 <br> <b> X </b> -2,706,262.231 (meters) COMP <br> <b> Y </b> -4,245,580.866 (meters) COMP <br> <b> Z </b> 3,902,410.897 (meters) COMP <br> <b> LAPLACE CORR</b> -1.06 (seconds) DEFLEC99 <br> <b> ELLIP HEIGHT</b> -29.29 (meters) (07/10/98) GPS OBS <br> <b> GEOID HEIGHT</b> -32.21 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 2.907 (meters) 9.54 (feet) COMP <br> <b> MODELED GRAV</b> 979,997.7 (mgal) NAVD 88 <br> <p> <b> HORZ ORDER </b> FIRST <br> <b> VERT ORDER </b> FIRST CLASS II <br> <b> ELLP ORDER </b> FOURTH CLASS I <br> <p>The horizontal coordinates were established by GPS observations and adjusted by the National Geodetic Survey in July 1998. The horizontal coordinates are valid at the epoch date displayed above. The epoch date for horizontal control is a decimal equivalence of Year/Month/Day. <p>The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991. <p>The X, Y, and Z were computed from the position and the ellipsoidal ht. <p>The Laplace correction was computed from DEFLEC99 derived deflections. <p>The ellipsoidal height was determined by GPS observations and is referenced to NAD 83. <p>The geoid height was determined by GEOID03. <p>The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.). <p>The modeled gravity was interpolated from observed gravity values. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td>Units</td><td>Scale Fact</td><td>r Converg.</td></tr><tr><td>SPC CA 3 </td><td> 664,553.148 1</td><td>822,988.392</td><td> MT </td><td>0.99993616</td><td> -1 ' 14 00.4"</td></tr><tr><td>SPC CA 3 </td><td>2,180,288.12 5</td><td>980,921.08 </td><td> sFT </td><td>0.99993616</td><td> -1 ' 14 00.4"</td></tr><tr><td>UTM 10 </td><td>4,202,102.367 </td><td>542,630.355</td><td> MT </td><td>0.99962238</td><td> +0 ' 17 54.9"</td></tr> </table> <p> <b> </b> Elev Factor x Scale Factor = Combined Factor <br> <b>SPC CA 3 </b> 1.00000460 x 0.99993616 = 0.99994076 <br> <b>UTM 10 </b> 1.00000460 x 0.99962238 = 0.99962697 <br> <p> <h2>Superseded Survey Control</h2>
<p> <b> NAD 83(1992)</b> 37 57 55.93285(N) 122 30 52.82713(W) AD(1997.30) 1 <br> ELLIP H (03/20/98) -29.23 (m) GP(1997.30) 3 2 <br>
<b> NAD 83(1992)</b> 37 57 55.93141(N) 122 30 52.82639(W) AD(1995.42) 1 <br> ELLIP H (12/22/97) -29.24 (m) GP(1995.42) 4 1 <br>
NAVD 88 (12/22/97) 2.91 (m) 9.5 (f) LEVELING 3 <br>
NGVD 29 (10/21/93) 2.094 (m) 6.87 (f) ADJUSTED 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH4263002102(NAD 83) <br>MARKER: DJ = TIDAL STATION DISK <br>SETTING: 32 = SET IN A RETAINING WALL OR CONCRETE LEDGE <br>SP_SET: CONCRETE RETAINING WALL <br>STAMPING: NO 17 1951 <br>MARK LOGO: CGS <br>MAGNETIC: N = NO MAGNETIC MATERIAL <br>STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL <br>SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR <br>SATELLITE: SATELLITE OBSERVATIONS - September 15, 1995 <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1951 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1956 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1964 </td><td>GOOD </td><td>NGS</td></tr><tr><td>19880929</td><td>GOOD </td><td>NGS</td></tr><tr><td>19950915</td><td>GOOD </td><td>NGS</td></tr><tr><td>19970404</td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1956 0.7 MI SE FROM SAN RAFAEL. 0.1 MILE EAST ALONG THIRD STREET FROM THE NORTHWESTERN PACIFIC RAILROAD FROM THE STATION AT SAN RAFAEL, THENCE 0.1 MILE SOUTH ALONG IRWIN STREET, THENCE 0.5 MILE SOUTHEAST ALONG FRANCISCO BOULEVARD, ON THE SOUTHEAST BANK OF THE SAN RAFAEL CREEK, AT THE ROSSI GARAGE USED CAR LOT (595 FRANCISCO BOULEVARD), AT THE SOUTHEAST END OF THE NORTHEAST CORNER OF A RETAINING WALL, IN TOP OF THE WEST CORNER OF THE CONCRETE DECK FOR A PUMPHOUSE, 261 FEET NORTHWEST OF THE CENTER LINE OF HARBOR STREET, 27 FEET NORTHEAST OF THE CENTER LINE OF FRANCISCO BOULEVARD, AND 2.7 FEET ABOVE A SIDEWALK. <p> <h2>STATION RECOVERY (1964) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1964 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1988) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 RECOVERED IN GOOD CONDITION WITH THE FOLLOWING EXCEPTIONS. ADD--AT 595 FRANCISCO BOULEVARD, AND 14.0 M (45.9 FT) NORTHWEST OF THE NORTHWEST CORNER OF THE BUILDING. DELETE--AT THE ROSSI GARAGE USED CAR LOT. <p> <h2>STATION RECOVERY (1995) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1995 (JDD) THE STATION WAS RECOVERED AS DESCRIBED. <p> <h2>STATION RECOVERY (1997) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1997 (JDD) RECOVERED AS DESCRIBED. HT3510941 5020 J TIDALhttp://www.geocaching.com/mark/details.asp?PID=HT3510941 5020 J TIDALGeocacheGeocache941 5020 J TIDALNOSNOS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <b> TIDAL BM </b> This is a Tidal Bench Mark. <br> <h1>941 5020 J TIDAL</h1> <b> PID </b> HT3510 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 59 41. (N) 122 58 34. (W) SCALED <br> <b> NAVD 88 </b> 25.233 (meters) 82.79 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.91 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 25.217 (meters) 82.73 (feet) COMP <br> <b> MODELED GRAV</b> 979,997.0 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS II <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991. <p>This Tidal Bench Mark is designated as VM 1738 by the Center for Operational Oceanographic Products and Services. <p>The geoid height was determined by GEOID03. <p>The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.). <p>The modeled gravity was interpolated from observed gravity values. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 668,760. </td><td> 1,782,540. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (12/02/92) 24.436 (m) 80.17 (f) ADJUSTED 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH020052(NAD 83) <br>MARKER: I = METAL ROD <br>SETTING: 48 = GALVANIZED STEEL ROD W/O SLEEVE (1O FT.+) <br>SP_SET: GALVANIZED STEEL ROD <br>STAMPING: 5020 J 1978 <br>MARK LOGO: NOS <br>PROJECTION: PROJECTING 10 CENTIMETERS <br>STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL <br>ROD/PIPE-DEPTH: 4.9 meters <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1978 </td><td>MONUMENTED </td><td>NOS</td></tr><tr><td>1988 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1988 25.1 KM (15.60 MI) SW FROM INVERNESS. 23.3 KM (14.50 MI) WESTERLY ALONG SIR FRANCIS DRAKE HIGHWAY FROM THE POST OFFICE IN INVERNESS, THENCE 1.5 KM (0.95 MI) EASTERLY ALONG CHIMNEY ROCK ROAD, THENCE 0.3 KM (0.20 MI) EASTERLY ALONG A PAVED ROAD, 170.0 M (557.7 FT) SOUTHEAST OF BENCH MARK 941 5020 R TIDAL, 16.8 M (55.1 FT) WEST OF A UTILITY POLE, AND 4.1 M (13.5 FT) NORTH-NORTHEAST OF THE CENTER OF THE ROAD. THE MARK IS 0.9 METERS NNE FROM A WOODEN WITNESS POST THE MARK IS 0.6 M BELOW THE ROAD. HT3504941 5020 K TIDALhttp://www.geocaching.com/mark/details.asp?PID=HT3504941 5020 K TIDALGeocacheGeocache941 5020 K TIDALNOSNOS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <b> TIDAL BM </b> This is a Tidal Bench Mark. <br> <h1>941 5020 K TIDAL</h1> <b> PID </b> HT3504 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 59 47. (N) 122 58 47. (W) SCALED <br> <b> NAVD 88 </b> 24.334 (meters) 79.84 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.91 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 24.318 (meters) 79.78 (feet) COMP <br> <b> MODELED GRAV</b> 979,997.8 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS II <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991. <p>This Tidal Bench Mark is designated as VM 1739 by the Center for Operational Oceanographic Products and Services. <p>The geoid height was determined by GEOID03. <p>The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.). <p>The modeled gravity was interpolated from observed gravity values. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 668,960. </td><td> 1,782,230. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (12/02/92) 23.536 (m) 77.22 (f) ADJUSTED 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH017054(NAD 83) <br>MARKER: I = METAL ROD <br>SETTING: 48 = GALVANIZED STEEL ROD W/O SLEEVE (1O FT.+) <br>SP_SET: GALVANIZED STEEL ROD <br>STAMPING: 5020 K 1978 <br>MARK LOGO: NOS <br>PROJECTION: PROJECTING 12 CENTIMETERS <br>STABILITY: A = MOST RELIABLE AND EXPECTED TO HOLD <br>STABILITY: POSITION/ELEVATION WELL <br>ROD/PIPE-DEPTH: 6.1 meters <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1978 </td><td>MONUMENTED </td><td>NOS</td></tr><tr><td>1988 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1988 24.9 KM (15.45 MI) SW FROM INVERNESS. 23.3 KM (14.50 MI) SOUTHWESTERLY ALONG SIR FRANCIS DRAKE HIGHWAY FROM THE POST OFFICE IN INVERNESS, THENCE 1.5 KM (0.95 MI) EASTERLY ALONG CHIMNEY ROCK ROAD, THENCE 0.1 KM (0.05 MI) NORTHWEST ALONG A PAVED ROAD, ON THE INSIDE OF A SHARP CURVE, AND 4.9 M (16.1 FT) SOUTHEAST OF THE CENTER OF THE ROAD. THE MARK IS 0.6 METERS SE FROM A WOODEN WITNESS POST THE MARK IS 0.6 M ABOVE THE ROAD. HT3506941 5020 L TIDALhttp://www.geocaching.com/mark/details.asp?PID=HT3506941 5020 L TIDALGeocacheGeocache941 5020 L TIDALNOSNOS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <b> TIDAL BM </b> This is a Tidal Bench Mark. <br> <h1>941 5020 L TIDAL</h1> <b> PID </b> HT3506 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 59 46. (N) 122 58 42. (W) SCALED <br> <b> NAVD 88 </b> 5.948 (meters) 19.51 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.91 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 5.944 (meters) 19.50 (feet) COMP <br> <b> MODELED GRAV</b> 979,997.6 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS II <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991. <p>This Tidal Bench Mark is designated as VM 1740 by the Center for Operational Oceanographic Products and Services. <p>The geoid height was determined by GEOID03. <p>The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.). <p>The modeled gravity was interpolated from observed gravity values. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 668,920. </td><td> 1,782,350. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (12/02/92) 5.150 (m) 16.90 (f) ADJUSTED 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH019053(NAD 83) <br>MARKER: DJ = TIDAL STATION DISK <br>SETTING: 36 = SET IN A MASSIVE STRUCTURE <br>SP_SET: PIER <br>STAMPING: 5020 L 1983 <br>MARK LOGO: NOS <br>STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1983 </td><td>MONUMENTED </td><td>NOS</td></tr><tr><td>1988 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1988 25.0 KM (15.55 MI) SW FROM INVERNESS. 23.3 KM (14.50 MI) SOUTHWESTERLY ALONG SIR FRANIS DRAKE HIGHWAY FROM THE POST OFFICE IN INVERNESS, THENCE 1.5 KM (0.95 MI) EASTERLY ALONG CHIMNEY ROCK ROAD, THENCE 0.2 KM (0.10 MI) EASTERLY ALONG A PAVED ROAD, IN TOP OF A CONCRETE PILEING OF A FISHING PIER, 66.4 M (217.8 FT) WEST OF THE SHORE END OF THE PIER, 55.6 M (182.4 FT) NORTHWEST OF A UTILITY POLE, 50.2 M (164.7 FT) NORTHWEST OF BENCH MARK A 243 CASLC, AND 13.7 M (44.9 FT) NORTH OF THE CENTER OF THE ROAD. THE MARK IS 1.6 METERS NW FROM A WITNESS POST THE MARK IS 2.0 M BELOW THE ROAD. HT3503941 5020 M TIDALhttp://www.geocaching.com/mark/details.asp?PID=HT3503941 5020 M TIDALGeocacheGeocache941 5020 M TIDALNGSNOS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <b> TIDAL BM </b> This is a Tidal Bench Mark. <br> <h1>941 5020 M TIDAL</h1> <b> PID </b> HT3503 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 59 46. (N) 122 58 45. (W) SCALED <br> <b> NAVD 88 </b> 32.457 (meters) 106.49 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.91 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 32.436 (meters) 106.42 (feet) COMP <br> <b> MODELED GRAV</b> 979,997.7 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS II <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991. <p>This Tidal Bench Mark is designated as VM 1741 by the Center for Operational Oceanographic Products and Services. <p>The geoid height was determined by GEOID03. <p>The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.). <p>The modeled gravity was interpolated from observed gravity values. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 668,930. </td><td> 1,782,280. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (12/02/92) 31.659 (m) 103.87 (f) ADJUSTED 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH018053(NAD 83) <br>MARKER: DJ = TIDAL STATION DISK <br>SETTING: 49 = STAINLESS STEEL ROD W/O SLEEVE (10 FT.+) <br>SP_SET: STAINLESS STEEL ROD <br>STAMPING: 5020 M 1985 <br>MARK LOGO: NOS <br>PROJECTION: FLUSH <br>STABILITY: A = MOST RELIABLE AND EXPECTED TO HOLD <br>STABILITY: POSITION/ELEVATION WELL <br>ROD/PIPE-DEPTH: 4.3 meters <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1985 </td><td>MONUMENTED </td><td>NGS</td></tr><tr><td>1988 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1988 24.8 KM (15.40 MI) SW FROM INVERNESS. 23.3 KM (14.50 MI) SOUTHWESTERLY ALONG SIR FRANCIS DRAKE HIGHWAY FROM THE POST OFFICE IN INVERNESS, THENCE 1.5 KM (0.95 MI) EASTERLY ALONG CHIMNEY ROCK ROAD, 67.7 M (222.1 FT) SOUTHEAST OF BENCH MARK 941 9020 K TIDAL, 41.2 M (135.2 FT) WEST OF UTILITY POLE NUMBER B 2, 21.2 M (69.6 FT) EAST OF A SIGN (DOCKS CLOSED TO PUBLIC USE), 8.5 M (27.9 FT) WEST OF THE EAST END OF A WOODEN GUARDRAIL, 8.0 M (26.2 FT) EAST OF THE WEST END OF A WOODEN GUARD RAIL, AND 1.4 M (4.6 FT) NORTHEAST OF A GUARDRAIL. NOTE--ACCESS TO DATUM POINT IS HAD THROUGH A 5-INCH LOGO CAP. THE MARK IS 0.3 M BELOW THE ROAD. HT3507941 5020 N TIDALhttp://www.geocaching.com/mark/details.asp?PID=HT3507941 5020 N TIDALGeocacheGeocache941 5020 N TIDALNOSNOS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <b> TIDAL BM </b> This is a Tidal Bench Mark. <br> <h1>941 5020 N TIDAL</h1> <b> PID </b> HT3507 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 59 45. (N) 122 58 40. (W) SCALED <br> <b> NAVD 88 </b> 27.674 (meters) 90.79 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.91 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 27.656 (meters) 90.73 (feet) COMP <br> <b> MODELED GRAV</b> 979,997.4 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS II <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991. <p>This Tidal Bench Mark is designated as VM 1742 by the Center for Operational Oceanographic Products and Services. <p>The geoid height was determined by GEOID03. <p>The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.). <p>The modeled gravity was interpolated from observed gravity values. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 668,890. </td><td> 1,782,400. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (12/02/92) 26.876 (m) 88.18 (f) ADJUSTED 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH019053(NAD 83) <br>MARKER: DJ = TIDAL STATION DISK <br>SETTING: 49 = STAINLESS STEEL ROD W/O SLEEVE (10 FT.+) <br>SP_SET: STAINLESS STEEL ROD <br>STAMPING: 5020 N 1985 <br>MARK LOGO: NOS <br>PROJECTION: PROJECTING 15 CENTIMETERS <br>STABILITY: A = MOST RELIABLE AND EXPECTED TO HOLD <br>STABILITY: POSITION/ELEVATION WELL <br>ROD/PIPE-DEPTH: 4.6 meters <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1985 </td><td>MONUMENTED </td><td>NOS</td></tr><tr><td>1988 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1988 24.9 KM (15.45 MI) SW FROM INVERNESS. 23.3 KM (14.50 MI) SOUTHWESTERLY ALONG SIR FRANCIS DRAKE HIGHWAY FROM THE POST OFFICE IN INVERNESS, THENCE 1.5 KM (0.95 MI) EASTERLY ALONG CHIMNEY ROCK ROAD, THENCE 0.1 KM (0.05 MI) SOUTHEAST ALONG A PAVED ROAD, 15.3 M (50.2 FT) WEST OF THE NORTHWEST CORNER OF THE STEPS LEADING TO A HOUSE, 12.6 M (41.3 FT) SOUTH OF A UTILITY POLE, AND 1.9 M (6.2 FT) WEST-NORTHWEST OF A TREE. NOTE--ACCESS TO DATUM POINT IS HAD THROUGH A 5-INCH LOGO CAP. THE MARK IS 0.5 METERS S FROM A WOODEN WITNESS POST THE MARK IS 0.3 M BELOW THE ROAD. HT3508941 5020 P TIDALhttp://www.geocaching.com/mark/details.asp?PID=HT3508941 5020 P TIDALGeocacheGeocache941 5020 P TIDALNOSNOS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <b> TIDAL BM </b> This is a Tidal Bench Mark. <br> <h1>941 5020 P TIDAL</h1> <b> PID </b> HT3508 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 59 41. (N) 122 58 37. (W) SCALED <br> <b> NAVD 88 </b> 19.852 (meters) 65.13 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.92 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 19.839 (meters) 65.09 (feet) COMP <br> <b> MODELED GRAV</b> 979,997.1 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS II <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991. <p>This Tidal Bench Mark is designated as VM 1743 by the Center for Operational Oceanographic Products and Services. <p>The geoid height was determined by GEOID03. <p>The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.). <p>The modeled gravity was interpolated from observed gravity values. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 668,770. </td><td> 1,782,470. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (12/02/92) 19.054 (m) 62.51 (f) ADJUSTED 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH020052(NAD 83) <br>MARKER: DJ = TIDAL STATION DISK <br>SETTING: 49 = STAINLESS STEEL ROD W/O SLEEVE (10 FT.+) <br>SP_SET: STAINLESS STEEL ROD <br>STAMPING: 5020 P 1985 <br>MARK LOGO: NOS <br>PROJECTION: FLUSH <br>STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL <br>ROD/PIPE-DEPTH: 4.6 meters <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1985 </td><td>MONUMENTED </td><td>NOS</td></tr><tr><td>1988 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1988 24.9 KM (15.45 MI) SW FROM INVERNESS. 23.3 KM (14.50 MI) SOUTHWESTERLY ALONG SIR FRANCIS DRAKE HIGHWAY FROM THE POST OFFICE IN INVERNESS, THENCE 1.5 KM (0.95 MI) EASTERLY ALONG CHIMNEY ROCK ROAD, THENCE 0.2 KM (0.10 MI) EAST ALONG A PAVED ROAD, 36.6 M (120.1 FT) SOUTHEAST OF BENCH MARK 941 5020 R TIDAL, AND 7.6 M (24.9 FT) SOUTH OF THE CENTER OF THE ROAD. NOTE--ACCESS TO DATUM POINT IS HAD THROUGH A 5-INCH LOGO CAP. THE MARK IS 0.8 METERS N FROM A WITNESS POST THE MARK IS 0.9 M ABOVE THE ROAD. HT3505941 5020 Q TIDALhttp://www.geocaching.com/mark/details.asp?PID=HT3505941 5020 Q TIDALGeocacheGeocache941 5020 Q TIDALNOSNOS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <b> FBN </b> This is a Federal Base Network Control Station. <br> <b> TIDAL BM </b> This is a Tidal Bench Mark. <br> <h1>941 5020 Q TIDAL</h1> <b> PID </b> HT3505 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1998)</b> 37 59 46.55297(N) 122 58 44.56456(W) ADJUSTED <br> <b> NAVD 88 </b> 19.812 (meters) 65.00 (feet) ADJUSTED <br> <hr> <b> EPOCH DATE </b> 1998.50 <br> <b> X </b> -2,739,446.967 (meters) COMP <br> <b> Y </b> -4,221,757.810 (meters) COMP <br> <b> Z </b> 3,905,109.079 (meters) COMP <br> <b> LAPLACE CORR</b> 5.14 (seconds) DEFLEC99 <br> <b> ELLIP HEIGHT</b> -13.27 (meters) (04/06/00) GPS OBS <br> <b> GEOID HEIGHT</b> -32.91 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 19.799 (meters) 64.96 (feet) COMP <br> <b> MODELED GRAV</b> 979,997.8 (mgal) NAVD 88 <br> <p> <b> HORZ ORDER </b> A <br> <b> VERT ORDER </b> FIRST CLASS II <br> <b> ELLP ORDER </b> THIRD CLASS I <br> <p>ITRF positions are available for this station. The horizontal coordinates were established by GPS observations and adjusted by the National Geodetic Survey in April 2000. This is a SPECIAL STATUS position. See SPECIAL STATUS under the DATUM ITEM on the data sheet items page. The horizontal coordinates are valid at the epoch date displayed above. The epoch date for horizontal control is a decimal equivalence of Year/Month/Day. <p>The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991. <p>This Tidal Bench Mark is designated as VM 1744 by the Center for Operational Oceanographic Products and Services. <p>The X, Y, and Z were computed from the position and the ellipsoidal ht. <p>The Laplace correction was computed from DEFLEC99 derived deflections. <p>The ellipsoidal height was determined by GPS observations and is referenced to NAD 83. <p>The geoid height was determined by GEOID03. <p>The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.). <p>The modeled gravity was interpolated from observed gravity values. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td>Units</td><td>Scale Fact</td><td>r Converg.</td></tr><tr><td>SPC CA 3 </td><td> 668,941.934 1</td><td>782,287.168</td><td> MT </td><td>0.99993831</td><td> -1 ' 31 03.9"</td></tr><tr><td>SPC CA 3 </td><td>2,194,687.00 5</td><td>847,387.15 </td><td> sFT </td><td>0.99993831</td><td> -1 ' 31 03.9"</td></tr><tr><td>SPC CA 2 </td><td> 537,052.030 1</td><td>913,997.271</td><td> MT </td><td>1.00009346</td><td> -0 ' 37 02.1"</td></tr><tr><td>SPC CA 2 </td><td>1,761,978.20 6</td><td>279,506.05 </td><td> sFT </td><td>1.00009346</td><td> -0 ' 37 02.1"</td></tr><tr><td>UTM 10 </td><td>4,205,400.789 </td><td>501,839.824</td><td> MT </td><td>0.99960004</td><td> +0 ' 00 46.4"</td></tr> </table> <p> <b> </b> Elev Factor x Scale Factor = Combined Factor <br> <b>SPC CA 3 </b> 1.00000208 x 0.99993831 = 0.99994039 <br> <b>SPC CA 2 </b> 1.00000208 x 1.00009346 = 1.00009554 <br> <b>UTM 10 </b> 1.00000208 x 0.99960004 = 0.99960212 <br> <p> <h2>Superseded Survey Control</h2>
<p> <b> NAD 83(1986)</b> 37 59 46.53750(N) 122 58 44.55259(W) AD(1984.00) 1 <br> <b> NAD 83(1992)</b> 37 59 46.54328(N) 122 58 44.55573(W) AD(1991.35) B <br> ELLIP H (05/15/92) -13.15 (m) GP(1991.35) 4 2 <br>
NAVD 88 (05/15/92) 19.81 (m) 65.0 (f) LEVELING 3 <br>
NGVD 29 (12/02/92) 19.015 (m) 62.38 (f) ADJUSTED 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH0184005401(NAD 83) <br>MARKER: DB = BENCH MARK DISK <br>SETTING: 49 = STAINLESS STEEL ROD W/O SLEEVE (10 FT.+) <br>SP_SET: METAL ROD DRIVEN INTO GROUND <br>STAMPING: 5020 Q 1985 <br>MARK LOGO: NOS <br>PROJECTION: FLUSH <br>MAGNETIC: I = MARKER IS A STEEL ROD <br>STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL <br>SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR <br>SATELLITE: SATELLITE OBSERVATIONS - April 21, 1998 <br>ROD/PIPE-DEPTH: 2.4 meters <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1985 </td><td>MONUMENTED </td><td>NOS</td></tr><tr><td>1988 </td><td>GOOD </td><td>NGS</td></tr><tr><td>19910521</td><td>GOOD </td><td>NGS</td></tr><tr><td>19940127</td><td>GOOD </td><td>NGS</td></tr><tr><td>19980421</td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1988 24.9 KM (15.45 MI) SW FROM INVERNESS. THE MARK IS 1.0 M BELOW THE ROAD. 23.3 KM (14.50 MI) SOUTHWESTERLY ALONG SIR FRANCIS DRAKE HIGHWAY FROM THE POST OFFICE IN INVERNESS, THENCE 1.5 KM (0.95 MI) EASTERLY ALONG CHIMNEY ROCK ROAD, THENCE 0.1 KM (0.05 MI) EAST ALONG A PAVED ROAD, 58.2 M (190.9 FT) NORTH OF 941 5020 M-TIDAL, 46.0 M (150.9 FT) EAST OF 941 5020 K TIDAL, AND 4.6 M (15.1 FT) NORTH OF THE CENTER OF THE ROAD. NOTE--ACCESS TO DATUM POINT IS HAD THROUGH A 5-INCH LOGO CAP. THE MARK IS 2.4 METERS W FROM A WITNESS POST <p> <h2>STATION RECOVERY (1991) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1991 THE STATION IS LOCATED ABOUT 14 MI (22.5 KM) SOUTH OF INVERNESS. TO REACH THE STATION FROM THE POST OFFICE IN INVERNESS, GO SOUTHERLY ON SIR FRANCIS DRAKE HIGHWAY FOR 23.3 KM (14.5 MI) TO CHIMNEY ROCK ROAD. TURN LEFT AND GO EASTERLY FOR 1.5 KM (0.9 MI) TO A PAVED ROAD. TURN EAST FOR 0.1 KM (0.1 MI) TO THE STATION. THE STATION IS A STANDARD NOS DISK CEMENTED TO A SHALLOW SET ROD INSIDE A 5 INCH LOGO CAP. LOCATED 58.2 M (190.9 FT) NORTH OF 941 5O2O M TIDAL, 46.0 M (150.9 FT) EAST OF 941 5020 K TIDAL AND 4.6 M (15.1 FT) NORTH OF THE CENTER OF THE ROAD. <p> <h2>STATION RECOVERY (1994) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1994 (AJL) THE STATION IS LOCATED ABOUT 20 KM (12.4 MI) SOUTH OF INVERNESS. OWNERSHIP--US GOVERNMENT, DEPT OF INTERIOR, REYES NATIONAL SEASHORE. TO REACH FROM THE POST OFFICE IN INVERNESS, GO NORTH THEN WEST ON SIR FRANCIS DRAKE BOULEVARD FOR 4.2 KM (2.6 MI) TO A FORK. BEAR LEFT, SOUTHWEST, ON SIR FRANCIS DRAKE BLVD FOR 4.8 KM (3.0 MI) TO A PAVED ROAD RIGHT AND GATE (LEADS TO US COAST GUARD STATION). CONTINUE AHEAD, SOUTHERLY, ON SFD BLVD FOR 14.7 KM (9.1 MI) TO A PAVED ROAD LEFT. TURN LEFT, EASTERLY, ON SINGLE LANE PAVED ROAD 1.6 KM (1.0 MI) TO A FORK JUST PAST A PARKING AREA. BEAR LEFT ON PAVED ROAD LEADING TO DOCK FOR 0.1 KM (0.1 MI) TO THE STATION ON THE LEFT. STATION MARK IS A STANDARD NOS DISK CEMENTED TO A SHALLOW SET ROD INSIDE A LOGO CAP. IT IS 58.2 M (190.9 FT) NORTH OF TIDAL STATION 941 5020 M, 46.0 M (150.9 FT) EAST OF TIDAL STATION STATION 941 5020 K, 4.6 M (15.1 FT) NORTH OF, AND LEVEL WITH, THE CENTER OF THE ROAD, AND 2.4 M (7.9 FT) WEST OF WITNESS POST. <p> <h2>STATION RECOVERY (1998) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1998 (CSM) THE STATION IS LOCATED ABOUT 22.5 KM (14.00 MI) SOUTHWEST OF INVERNESS, ON THE DRAKES BAY SIDE OF THE POINT REYES PENINSULA. OWNERSHIP--U.S. GOVERNMENT. TO REACH THE STATION FROM THE POST OFFICE IN INVERNESS, GO NORTHWEST FOR ABOUT 3.2 KM (2.00 MI) THEN SOUTHWESTERLY FOR 20.1 KM (12.50 MI) ON SIR FRANCIS DRAKE HIGHWAY TO CHIMNEY ROCK ROAD ON THE LEFT. TURN LEFT, EASTERLY FOR 1.5 KM (0.95 MI) ON CHIMNEY ROCK ROAD TO A PAVED ROAD AND PARKING AREA. TURN LEFT, EASTERLY FOR ABOUT 0.1 KM (0.05 MI) DOWNHILL AND AROUND CURVE TO A METAL GATE AND THE STATION JUST EAST OF THE GATE. THE STATION IS A PUNCH MARK ON THE TOP CENTER OF A DISK CRIMPED TO THE TOP OF A STAINLESS STEEL ROD RECESSED 15 CM BELOW GROUND, ENCASED IN A 5-INCH PVC PIPE WITH NGS LOGO CAP SURROUNDED BY CONCRETE. LOCATED 58.2 M (190.9 FT) NORTH OF STATION 941 5020 M TIDAL, 46.0 M (150.9 FT) EAST OF STATION 941 5020 K TIDAL, 26.2 M (86.0 FT) EAST OF THE NORTH GATE POST, 4.5 M (14.8 FT) NORTH OF THE CENTER OF ROAD, 2.35 M (7.71 FT) WEST-NORTHWEST OF A FIBERGLASS WITNESS POST, ABOUT LEVEL WITH THE ROAD AND FLUSH WITH GROUND. HT3509941 5020 R TIDALhttp://www.geocaching.com/mark/details.asp?PID=HT3509941 5020 R TIDALGeocacheGeocache941 5020 R TIDALNOSNOS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <b> TIDAL BM </b> This is a Tidal Bench Mark. <br> <h1>941 5020 R TIDAL</h1> <b> PID </b> HT3509 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 59 43. (N) 122 58 38. (W) SCALED <br> <b> NAVD 88 </b> 21.585 (meters) 70.82 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.91 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 21.572 (meters) 70.77 (feet) COMP <br> <b> MODELED GRAV</b> 979,997.2 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS II <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991. <p>This Tidal Bench Mark is designated as VM 1745 by the Center for Operational Oceanographic Products and Services. <p>The geoid height was determined by GEOID03. <p>The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.). <p>The modeled gravity was interpolated from observed gravity values. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 668,830. </td><td> 1,782,440. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (12/02/92) 20.788 (m) 68.20 (f) ADJUSTED 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH020052(NAD 83) <br>MARKER: DJ = TIDAL STATION DISK <br>SETTING: 32 = SET IN A RETAINING WALL OR CONCRETE LEDGE <br>SP_SET: RETAINING WALL <br>STAMPING: 5020 R 1985 <br>MARK LOGO: NOS <br>STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO <br>STABILITY: SURFACE MOTION <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1985 </td><td>MONUMENTED </td><td>NOS</td></tr><tr><td>1988 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1988 25.0 KM (15.55 MI) SW FROM INVERNESS. 23.3 KM (14.50 MI) SOUTHWESTERLY ALONG SIR FRANCIS DRAKE HIGHWAY FROM THE POST OFFICE IN INVERNESS, THENCE 1.5 KM (0.95 MI) EASTERLY ALONG CHIMNEY ROCK ROAD, THENCE 0.2 KM (0.10 MI) EAST ALONG A PAVED ROAD, IN TOP OF A CONCRETE RETAINING WALL ALONG THE SOUTHWEST SIDE OF THE ROAD, 66.0 M (216.5 FT) SOUTHEAST OF BENCH MARK 941 5020 N TIDAL, AND 0.5 M (1.6 FT) WEST OF THE WEST CORNER OF A GARAGE. THE MARK IS 0.1 M ABOVE THE ROAD. HT3513941 5020 TIDAL 10http://www.geocaching.com/mark/details.asp?PID=HT3513941 5020 TIDAL 10GeocacheGeocache941 5020 TIDAL 10NOSNOS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <b> TIDAL BM </b> This is a Tidal Bench Mark. <br> <h1>941 5020 TIDAL 10</h1> <b> PID </b> HT3513 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 59 39. (N) 122 58 25. (W) SCALED <br> <b> NAVD 88 </b> 4.380 (meters) 14.37 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.91 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 4.378 (meters) 14.36 (feet) COMP <br> <b> MODELED GRAV</b> 979,996.5 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS II <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991. <p>This Tidal Bench Mark is designated as VM 1735 by the Center for Operational Oceanographic Products and Services. <p>The geoid height was determined by GEOID03. <p>The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.). <p>The modeled gravity was interpolated from observed gravity values. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 668,700. </td><td> 1,782,760. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (12/02/92) 3.584 (m) 11.76 (f) ADJUSTED 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH023051(NAD 83) <br>MARKER: DB = BENCH MARK DISK <br>SETTING: 31 = SET IN A PAVEMENT SUCH AS STREET, SIDEWALK, CURB, ETC. <br>SP_SET: SIDEWALK <br>STAMPING: NO 10 1973 <br>MARK LOGO: NOS <br>STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1973 </td><td>MONUMENTED </td><td>NOS</td></tr><tr><td>1988 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1988 25.3 KM (15.70 MI) SW FROM INVERNESS. 23.3 KM (14.50 MI) SOUTHWESTERLY ALONG SIR FRANCIS DRAKE HIGHWAY FROM THE POST OFFICE IN INVERNESS, THENCE 1.5 KM (0.95 MI) EASTERLY ALONG CHIMNEY ROCK ROAD, THENCE 0.5 KM (0.30 MI) EASTERLY ALONG A PAVED ROAD, IN THE CONCRETE SIDEWALK THAT RUNS ALONG THE SOUTH SIDE OF AN ABANDONED COAST GUARD STATION, 14.6 M (47.9 FT) EAST OF BENCH MARK 941 5020 TIDAL 9, 1.7 M (5.6 FT) SOUTHEAST OF THE SOUTHEAST CORNER OF THE BUILDING, AND 0.3 M (1.0 FT) NORTHWEST OF THE SOUTHEAST CORNER OF THE SIDEWALK. THE MARK IS ABOVE LEVEL WITH THE ROAD. HT3511941 5020 TIDAL 11http://www.geocaching.com/mark/details.asp?PID=HT3511941 5020 TIDAL 11GeocacheGeocache941 5020 TIDAL 11NOSNOS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <b> TIDAL BM </b> This is a Tidal Bench Mark. <br> <h1>941 5020 TIDAL 11</h1> <b> PID </b> HT3511 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 59 39. (N) 122 58 31. (W) SCALED <br> <b> NAVD 88 </b> 16.712 (meters) 54.83 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.92 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 16.701 (meters) 54.79 (feet) COMP <br> <b> MODELED GRAV</b> 979,996.7 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS II <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991. <p>This Tidal Bench Mark is designated as VM 1737 by the Center for Operational Oceanographic Products and Services. <p>The geoid height was determined by GEOID03. <p>The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.). <p>The modeled gravity was interpolated from observed gravity values. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 668,700. </td><td> 1,782,610. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (12/02/92) 15.915 (m) 52.21 (f) ADJUSTED 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH021051(NAD 83) <br>MARKER: DJ = TIDAL STATION DISK <br>SETTING: 66 = SET IN ROCK OUTCROP <br>SP_SET: BEDROCK <br>STAMPING: TIDAL BM 11 1975 <br>MARK LOGO: NOS <br>STABILITY: A = MOST RELIABLE AND EXPECTED TO HOLD <br>STABILITY: POSITION/ELEVATION WELL <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1975 </td><td>MONUMENTED </td><td>NOS</td></tr><tr><td>1988 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1988 25.2 KM (15.65 MI) SW FROM INVERNESS. 23.3 KM (14.50 MI) SOUTHWESTERLY ALONG SIR FRANCIS DRAKE HIGHWAY FROM THE POST OFFICE IN INVERNESS, THENCE 1.5 KM (0.95 MI) EASTERLY ALONG CHIMNEY ROCK ROAD, THENCE 0.4 KM (0.25 MI) EASTERLY ALONG A PAVED ROAD, 99.1 M (325.1 FT) SOUTHEAST OF BENCH MARK TIDAL J, 12.8 M (42.0 FT) NORTHWEST OF A UTILITY POLE, AND 3.4 M (11.2 FT) SOUTHWEST OF THE CENTER OF THE ROAD. THE MARK IS 0.3 M ABOVE THE ROAD. HT1837941 5020 TIDAL 5http://www.geocaching.com/mark/details.asp?PID=HT1837941 5020 TIDAL 5GeocacheGeocache941 5020 TIDAL 5CGSCGS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <b> TIDAL BM </b> This is a Tidal Bench Mark. <br> <h1>941 5020 TIDAL 5</h1> <b> PID </b> HT1837 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 59 40. (N) 122 58 27. (W) SCALED <br> <b> NAVD 88 </b> 2.345 (meters) 7.69 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.91 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 2.344 (meters) 7.69 (feet) COMP <br> <b> MODELED GRAV</b> 979,996.6 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS II <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991. <p>This Tidal Bench Mark is designated as VM 1730 by the Center for Operational Oceanographic Products and Services. <p>The geoid height was determined by GEOID03. <p>The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.). <p>The modeled gravity was interpolated from observed gravity values. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 668,730. </td><td> 1,782,710. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (12/02/92) 1.549 (m) 5.08 (f) ADJUSTED 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH022051(NAD 83) <br>MARKER: DS = TRIANGULATION STATION DISK <br>SETTING: 66 = SET IN ROCK OUTCROP <br>SP_SET: BEDROCK <br>STAMPING: BM FIVE 1929 <br>MARK LOGO: CGS <br>STABILITY: A = MOST RELIABLE AND EXPECTED TO HOLD <br>STABILITY: POSITION/ELEVATION WELL <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1929 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1951 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1959 </td><td>MARK NOT FOUND </td><td>NGS</td></tr><tr><td>1988 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1951 AT POINT REYES C G STATION. AT THE POINT REYES U.S. COAST GUARD STATION, IN THE TOP OF THE FIRST ROCKY POINT ALONG THE BEACH WEST OF THE COAST GUARD STATION, ABOUT 240 FEET WEST OF THE WEST SIDE OF THE COAST GUARD BUILDING, 107.0 FEET WEST OF THE WEST SIDE OF THE PALADINIS FISH DOCK (MEASURED ALONG THE BEACH), AND SET 0.8 FEET NORTHEAST OF THE NORTHEAST FACE OF A ROCK CLIFF ABOUT 4 FEET ABOVE THE WATER LINE. <p> <h2>STATION RECOVERY (1959) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1959 MARK NOT FOUND. <p> <h2>STATION RECOVERY (1988) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 RECOVERED IN GOOD CONDITION. A NEW DESCRIPTION FOLLOWS. 23.3 KM (14.50 MI) WESTERLY ALONG SIR FRANCES DRAKE HIGHWAY FROM THE POST OFFICE IN INVERNESS, THENCE 1.5 KM (0.95 MI) EASTERLY ALONG CHIMNEY ROCK ROAD, THENCE 0.5 KM (0.30 MI) EASTERLY ALONG A PAVED ROAD, IN AN AREA OF OUTCROPPING BEDROCK AT THE END OF A ROCKY POINT, 722.0 M (2368.8 FT) WEST OF AN ABANDONED COAST GUARD BOAT HOUSE, AND 0.2 M (0.7 FT) NORTHEAST OF THE NORTHEAST FACE OF A CLIFF. HT3514941 5020 TIDAL 8http://www.geocaching.com/mark/details.asp?PID=HT3514941 5020 TIDAL 8GeocacheGeocache941 5020 TIDAL 8NOSNOS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <b> TIDAL BM </b> This is a Tidal Bench Mark. <br> <h1>941 5020 TIDAL 8</h1> <b> PID </b> HT3514 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 59 38. (N) 122 58 22. (W) SCALED <br> <b> NAVD 88 </b> 2.314 (meters) 7.59 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.91 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 2.313 (meters) 7.59 (feet) COMP <br> <b> MODELED GRAV</b> 979,996.4 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS II <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991. <p>This Tidal Bench Mark is designated as VM 1733 by the Center for Operational Oceanographic Products and Services. <p>The geoid height was determined by GEOID03. <p>The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.). <p>The modeled gravity was interpolated from observed gravity values. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 668,660. </td><td> 1,782,830. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (12/02/92) 1.518 (m) 4.98 (f) ADJUSTED 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH023051(NAD 83) <br>MARKER: DJ = TIDAL STATION DISK <br>SETTING: 66 = SET IN ROCK OUTCROP <br>SP_SET: BEDROCK <br>STAMPING: NO 8 1973 <br>MARK LOGO: NOS <br>STABILITY: A = MOST RELIABLE AND EXPECTED TO HOLD <br>STABILITY: POSITION/ELEVATION WELL <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1973 </td><td>MONUMENTED </td><td>NOS</td></tr><tr><td>1988 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1988 29.3 KM (18.20 MI) SW FROM INVERNESS. 23.3 KM (14.50 MI) SOUTHWESTERLY ALONG SIR FRANCIS DRAKE HIGHWAY FROM THE POST OFFICE IN INVERNESS, THENCE 1.5 KM (0.95 MI) EASTERLY ALONG CHIMNEY ROAD ROAD, THENCE 0.5 KM (0.30 MI) EASTERLY ALONG A PAVED ROAD, IN A SQUARE AREA OF OUTCROPPING BEDROCK AT THE FIRST ROCKY POINT EAST OF THE ABONDONED COAST GUARD BOAT HOUSE, 125.0 M (410.1 FT) EAST OF THE SOUTHEAST CORNER OF THE BOAT HOUSE, AND 2.4 M (7.9 FT) NORTHWEST OF THE BASE OF A CLIFF. HT3512941 5020 TIDAL 9http://www.geocaching.com/mark/details.asp?PID=HT3512941 5020 TIDAL 9GeocacheGeocache941 5020 TIDAL 9NOSNOS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <b> TIDAL BM </b> This is a Tidal Bench Mark. <br> <h1>941 5020 TIDAL 9</h1> <b> PID </b> HT3512 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 59 39. (N) 122 58 25. (W) SCALED <br> <b> NAVD 88 </b> 4.364 (meters) 14.32 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.91 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 4.361 (meters) 14.31 (feet) COMP <br> <b> MODELED GRAV</b> 979,996.5 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS II <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991. <p>This Tidal Bench Mark is designated as VM 1734 by the Center for Operational Oceanographic Products and Services. <p>The geoid height was determined by GEOID03. <p>The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.). <p>The modeled gravity was interpolated from observed gravity values. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 668,700. </td><td> 1,782,760. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (12/02/92) 3.567 (m) 11.70 (f) ADJUSTED 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH023051(NAD 83) <br>MARKER: DJ = TIDAL STATION DISK <br>SETTING: 31 = SET IN A PAVEMENT SUCH AS STREET, SIDEWALK, CURB, ETC. <br>SP_SET: SIDEWALK <br>STAMPING: NO 9 1973 <br>MARK LOGO: NOS <br>STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1973 </td><td>MONUMENTED </td><td>NOS</td></tr><tr><td>1988 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1988 25.3 KM (15.70 MI) SW FROM INVERNESS. 23.3 KM (14.50 MI) WESTERLY ALONG SIR FRANCIS DRAKE HIGHWAY FROM THE POST OFFICE IN INVERNESS, THENCE 1.5 KM (0.95 MI) EASTERLY ALONG CHIMNEY ROCK ROAD, THENCE 0.5 KM (0.30 MI) EASTERLY ALONG A PAVED ROAD, IN THE SIDEWALK ALONG THE SOUTH SIDE OF AN ABANDONED COAST GUARD BOAT HOUSE, 14.6 M (47.9 FT) SOUTHEAST OF THE SOUTHWEST CORNER OF THE BUILDING, AND 0.3 M (1.0 FT) SOUTH OF THE NORTH EDGE OF THE SIDEWALK. THE MARK IS ABOVE LEVEL WITH THE ROAD. AE7862941 5052 C TIDALhttp://www.geocaching.com/mark/details.asp?PID=AE7862941 5052 C TIDALGeocacheGeocache941 5052 C TIDALNOSNOS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <b> HT_MOD </b> This is a Height Modernization Survey Station. <br> <h1>941 5052 C TIDAL</h1> <b> PID </b> AE7862 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> NOVATO (1980) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1992)</b> 38 00 51.30069(N) 122 30 07.39517(W) ADJUSTED <br> <b> NAVD 88 </b> 2.11 (meters) 6.9 (feet) GPS OBS <br> <hr> <b> EPOCH DATE </b> 1997.30 <br> <b> X </b> -2,703,538.429 (meters) COMP <br> <b> Y </b> -4,243,369.544 (meters) COMP <br> <b> Z </b> 3,906,671.780 (meters) COMP <br> <b> LAPLACE CORR</b> -1.35 (seconds) DEFLEC99 <br> <b> ELLIP HEIGHT</b> -30.01 (meters) (07/10/98) GPS OBS <br> <b> GEOID HEIGHT</b> -32.13 (meters) GEOID03 <br> <p> <b> HORZ ORDER </b> FIRST <br> <b> ELLP ORDER </b> FOURTH CLASS I <br> <p>The horizontal coordinates were established by GPS observations and adjusted by the National Geodetic Survey in July 1998. The horizontal coordinates are valid at the epoch date displayed above. The epoch date for horizontal control is a decimal equivalence of Year/Month/Day. <p>The orthometric height was determined by GPS observations and a high-resolution geoid model using precise GPS observation and processing techniques. <p>The X, Y, and Z were computed from the position and the ellipsoidal ht. <p>The Laplace correction was computed from DEFLEC99 derived deflections. <p>The ellipsoidal height was determined by GPS observations and is referenced to NAD 83. <p>The geoid height was determined by GEOID03. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td>Units</td><td>Scale Fact</td><td>r Converg.</td></tr><tr><td>SPC CA 3 </td><td> 669,934.760 1</td><td>824,212.695</td><td> MT </td><td>0.99993970</td><td> -1 ' 13 32.6"</td></tr><tr><td>SPC CA 3 </td><td>2,197,944.29 5</td><td>984,937.82 </td><td> sFT </td><td>0.99993970</td><td> -1 ' 13 32.6"</td></tr><tr><td>UTM 10 </td><td>4,207,513.086 </td><td>543,709.983</td><td> MT </td><td>0.99962353</td><td> +0 ' 18 24.0"</td></tr> </table> <p> <b> </b> Elev Factor x Scale Factor = Combined Factor <br> <b>SPC CA 3 </b> 1.00000471 x 0.99993970 = 0.99994441 <br> <b>UTM 10 </b> 1.00000471 x 0.99962353 = 0.99962824 <br> <p> <h2>Superseded Survey Control</h2>
<p> <b> NAD 83(1992)</b> 38 00 51.30022(N) 122 30 07.39482(W) AD(1997.30) 1 <br> ELLIP H (03/20/98) -29.94 (m) GP(1997.30) 3 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH4371007513(NAD 83) <br>MARKER: DJ = TIDAL STATION DISK <br>SETTING: 48 = GALVANIZED STEEL ROD W/O SLEEVE (1O FT.+) <br>STAMPING: 5052 C 1979 <br>MARK LOGO: NOS <br>PROJECTION: FLUSH <br>MAGNETIC: A = STEEL ROD ADJACENT TO MONUMENT <br>STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL <br>SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR <br>SATELLITE: SATELLITE OBSERVATIONS - 1979 <br>ROD/PIPE-DEPTH: 7 meters <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1979 </td><td>MONUMENTED </td><td>NOS</td></tr><tr><td>20000606</td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL OCEAN SERVICE 1979 THE STATION IS ABOUT 4 MI (6.4 KM) NORTHEAST OF THE CITY OF SAN RAFAEL IN THE COMMUNITY OF SANTA VENETIA AT BUCKS LANDING ALONG GALLINAS CREEK. TO REACH THE STATION FROM THE INTERSECTION OF HIGHWAY 101 AND NORTH SAN PEDRO ROAD IN SAN RAFAEL GO NORTHEASTERLY ON NORTH SAN PEDRO ROAD FOR 1.15 MI (1.85 KM) TO A SIDE ROAD LEFT, MEADOW DRIVE, AND A STOP SIGN. CONTINUE NORTHEASTERLY ON NORTH SAN PEDRO ROAD FOR 1.15 MI (1.85 KM) TO A PAVED SIDE ROAD LEFT, THE WEST ENTRANCE TO BUCKS LANDING. CONTINUE EASTERLY FOR 0.15 MI (0.24 KM) TO A SIDE ROAD LEFT, THE EAST ENTRANCE TO BUCKS LANDING. TURN LEFT ONTO THE SIDE ROAD AND GO ABOUT 30 M (98.4 FT) TO THE STATION ON THE RIGHT. THE STATION IS A NATIONAL OCEAN SERVICE DISK SET ATOP A GALVANIZED ROD AND SET INSIDE A 4 IN PCV PIPE. THE STATION IS 112 FT (34.1 M) NORTH-NORTHWEST OF A TELEPHONE POLE, 107 FT (32.6 M) NORTH OF THE CENTERLINE INTERSECTION OF NORTH SAN PEDRO ROAD AND THE ROAD TO BUCKS LANDING, 16 FT (4.9 M) NORTHEAST OF THE CENTERLINE OF THE ROAD TO BUCKS LANDING, 2.0 FT (0.6 M) NORTHWEST OF A WOODEN 4 IN BY 4 IN WITNESS POST, 0.6 FT (0.2 M) SOUTHEAST OF A METAL FENCE POST AND ABOUT 1.0 FT (0.3 M) BELOW THE TOP OF THE PCV PIPE. <p> <h2>STATION RECOVERY (2000) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 2000 (MEI) RECOVERED AS DESCRIBED WITH THE FOLLOWING CHANGES. FROM HWY 101, FOLLOW SIGNS TO -CHINA CAMP STATE PARK.- THE EAST ENTRANCE TO BUCKS LANDING IS ON A BLIND CURVE. THE PVC CASING HAS BEEN SAWED OFF SO THAT THE MARK IS LESS THAN 0.45 FT BELOW THE TOP OF CASING. THIS STATION WAS OBSERVED IN FEB, 2000 AS PART OF THE HAMILTON FIELD GEODETIC/TIDAL DATUMS DETERMINATION STUDY. DE8065941 5126 A TIDALhttp://www.geocaching.com/mark/details.asp?PID=DE8065941 5126 A TIDALGeocacheGeocache941 5126 A TIDALNOSOPSNOS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>941 5126 A TIDAL</h1> <b> PID </b> DE8065 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> NOVATO (1980) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1992)</b> 38 02 55.07920(N) 122 30 17.61614(W) ADJUSTED <br> <b> NAVD 88 </b> -0.25 (meters) -0.8 (feet) LEVELING <br> <hr> <b> EPOCH DATE </b> 1997.30 <br> <b> X </b> -2,702,484.219 (meters) COMP <br> <b> Y </b> -4,241,251.113 (meters) COMP <br> <b> Z </b> 3,909,676.413 (meters) COMP <br> <b> LAPLACE CORR</b> -1.67 (seconds) DEFLEC99 <br> <b> ELLIP HEIGHT</b> -32.33 (meters) (10/01/02) GPS OBS <br> <b> GEOID HEIGHT</b> -32.07 (meters) GEOID03 <br> <p> <b> HORZ ORDER </b> FIRST <br> <b> VERT ORDER </b> THIRD ? <br> <b> ELLP ORDER </b> FIFTH CLASS I <br> <p>The horizontal coordinates were established by GPS observations and adjusted by the National Geodetic Survey in October 2002. The horizontal coordinates are valid at the epoch date displayed above. The epoch date for horizontal control is a decimal equivalence of Year/Month/Day. <p>The orthometric height was determined by differential leveling. The vertical network tie was performed by a horz. field party for horz. obs reductions. Reset procedures were used to establish the elevation. <p>The X, Y, and Z were computed from the position and the ellipsoidal ht. <p>The Laplace correction was computed from DEFLEC99 derived deflections. <p>The ellipsoidal height was determined by GPS observations and is referenced to NAD 83. <p>The geoid height was determined by GEOID03. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td>Units</td><td>Scale Fact</td><td>r Converg.</td></tr><tr><td>SPC CA 3 </td><td> 673,755.400 1</td><td>824,045.194</td><td> MT </td><td>0.99994263</td><td> -1 ' 13 38.9"</td></tr><tr><td>SPC CA 3 </td><td>2,210,479.17 5</td><td>984,388.27 </td><td> sFT </td><td>0.99994263</td><td> -1 ' 13 38.9"</td></tr><tr><td>UTM 10 </td><td>4,211,326.667 </td><td>543,440.448</td><td> MT </td><td>0.99962324</td><td> +0 ' 18 18.6"</td></tr> </table> <p> <b> </b> Elev Factor x Scale Factor = Combined Factor <br> <b>SPC CA 3 </b> 1.00000507 x 0.99994263 = 0.99994770 <br> <b>UTM 10 </b> 1.00000507 x 0.99962324 = 0.99962831 <br> <p> <table border=1><tr><td> </td><td> Primary Azimuth Mark </td><td>Grid Az</td></tr><tr><td>SPC CA 3 </td><td> 941 5126 D TIDAL </td><td>254° 06' 10.3"</td></tr><tr><td>UTM 10 </td><td> 941 5126 D TIDAL </td><td>252° 34' 12.8"</td></tr> </table> <p> <table border=1><tr><td>PID </td><td>Reference Object </td><td> Distance </td><td>Geod. Az </td></tr><tr><td>DE8067</td><td>941 5126 D TIDAL </td><td>APPROX. 0.5 KM</td><td>252° 52' 31.4"</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p>No superseded survey control is available for this station. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH4344011327(NAD 83) <br>MARKER: DJ = TIDAL STATION DISK <br>SETTING: 4 = OBJECT SURROUNDED BY MASS OF CONCRETE <br>SP_SET: CONCRETE BLOCK <br>STAMPING: 5126 A 2000 <br>MARK LOGO: NOS <br>MAGNETIC: N = NO MAGNETIC MATERIAL <br>STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY <br>SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR <br>SATELLITE: SATELLITE OBSERVATIONS - February 02, 2000 <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>20000202</td><td>MONUMENTED </td><td>NOSOPS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NOS OCEANOG SERVICES 2000 (MEI) ABOUT 4 MI SOUTHEAST OF THE CITY OF NOVATO. FROM THE INTERSECTION OF HWY 101 AND HWY 37, DRIVE ABOUT 1 MI SOUTH ON HWY 101 TO THE NEXT EXIT, IGNACIO BLVD/ENTRADA DR AND BEL MARIN KEYS BLVD/HAMILTON FIELD, FOLLOWING THE SIGNAGE TO HAMILTON FIELD. AFTER LOOPING AROUND UNDER THE FREEWAY, TURN RIGHT ON BEL MARIN KEYS BLVD AND DRIVE 0.1 MI, STAYING IN THE RIGHT, EXIT ONLY, LANE WHICH PROVIDES ACCESS TO HWY 101 NORTH AND NAVE DR. TURN RIGHT AND CONTINUE STRAIGHT (SOUTH) ON NAVE DRIVE. CONTINUE FOR 0.8 MI TO MAIN GATE DR, A T-ROAD LEFT. TURN LEFT AND DRIVE 0.5 MI, WHERE THE STREET NAME CHANGES TO PALM DRIVE, AFTER THE RAILROAD TRACK UNDERCROSSING. CONTINUE ON PALM DRIVE FOR 0.15 MI, APPROACHING THE TOWN CENTER BUILDING. BEAR RIGHT, SE, ON SOUTH PALM DRIVE AND DRIVE 0.1 MI TO HAMILTON PARKWAY. TURN RIGHT, SSE, ON HAMILTON PKWY AND DRIVE FOR 0.3 MI TO A CROSSROAD, SAN PABLO AVENUE. TURN RIGHT ON SAN PABLO AVE AND DRIVE 0.1 MI TO A TRAFFIC CIRCLE WITH 5 ROADS ENTERING. DRIVE SEVEN-EIGHTHS OF THE WAY AROUND THE CIRCLE, 0.07 MI, TO SUNSET DRIVE, FOLLOWING SIGNS TO THE SWIMMING POOL. DRIVE ABOUT 0.4 MI, THROUGH COAST GUARD HOUSING, ON SUNSET DR, BEARING LEFT TO ACCESS THE SECOND TRAFFIC CIRCLE AFTER ANOTHER 0.1 MI. DRIVE SEVEN-EIGHTHS OF THE WAY AROUND THE CIRCLE TO CALIENTE DR. DRIVE 0.1 MI, NORTH, ON CALIENTE DR. TURN RIGHT, EASTERLY, ON ANGLED DIRT ROAD TO CONCRETE ROADWAY, EXTENSION OF HANGER AVE, AND DRIVE FOR 0.1 MI TO A T-RD LEFT. TURN LEFT AND DRIVE FOR 0.1 MI TO A FOUR-WAY INTERSECTION. TURN LEFT, OPPOSITE THE ENTRANCE TO THE COUNTY OF MARIN SHERIFF TRAINING FACILITY. DRIVE 100 FT AND THEN BEAR RIGHT, NORTH, TO GATE OPENING IN CHAIN LINK FENCE, 0.1 MI FROM 4-WAY INTERSECTION. BEAR RIGHT AROUND BUILDINGS, ONE MODULAR, AND TURN RIGHT, EAST, BETWEEN GRAY MODULAR OFFICES, IT CORP, AND PALE GREEN OLD BUILDING MARKED B94. AFTER 0.1 MI FROM THE FENCE OPENING, BEAR LEFT ON ROAD LEADING TO FORMER AIRPLANE RESCUE TOWER AND DRIVE ABOUT 0.1 MI TO A T-INTERSECTION WITH ANGLED ROADWAY LEFT AND THE MARK ON THE LEFT. THE MARK IS ON THE NORTHEAST CORNER OF THE T-INTERSECTION IN A CONCRETE BLOCK WITH AN ELECTRICAL MANHOLE COVER. THE MARK IS 470 FT EAST OF THE SHERIFF WAREHOUSE BUILDING 82, 29.5 FT NORTH OF CENTERLINE OF THE MAIN ROAD, LEADING TO THE FORMER AIRPLANE RESCUE TOWER, IN A LARGE, 9-FT DIAMETER, OCTAGONAL CONCRETE PAD STANDING 1.6 FT ABOVE GROUND. THE MARK IS AN NOS BENCH MARK DISK SET FLUSH WITH THE PAD, 6.6 FT SW OF THE NE FACE, 2.2 FT N OF THE SOUTHERN EDGE, 1.9 FT E OF THE WESTERN EDGE. THIS STATION WAS OBSERVED IN FEB, 2000 AS PART OF THE HAMILTON FIELD GEODETIC/TIDAL DATUMS DETERMINATION STUDY. DE8063941 5126 B TIDALhttp://www.geocaching.com/mark/details.asp?PID=DE8063941 5126 B TIDALGeocacheGeocache941 5126 B TIDALNOSOPSNOS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>941 5126 B TIDAL</h1> <b> PID </b> DE8063 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> NOVATO (1980) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1992)</b> 38 02 55.26272(N) 122 30 34.34037(W) ADJUSTED <br> <b> NAVD 88 </b> 0.14 (meters) 0.5 (feet) LEVELING <br> <hr> <b> EPOCH DATE </b> 1997.30 <br> <b> X </b> -2,702,826.396 (meters) COMP <br> <b> Y </b> -4,241,029.309 (meters) COMP <br> <b> Z </b> 3,909,681.122 (meters) COMP <br> <b> LAPLACE CORR</b> -1.74 (seconds) DEFLEC99 <br> <b> ELLIP HEIGHT</b> -31.92 (meters) (10/01/02) GPS OBS <br> <b> GEOID HEIGHT</b> -32.07 (meters) GEOID03 <br> <p> <b> HORZ ORDER </b> FIRST <br> <b> VERT ORDER </b> THIRD ? <br> <b> ELLP ORDER </b> FIFTH CLASS I <br> <p>The horizontal coordinates were established by GPS observations and adjusted by the National Geodetic Survey in October 2002. The horizontal coordinates are valid at the epoch date displayed above. The epoch date for horizontal control is a decimal equivalence of Year/Month/Day. <p>The orthometric height was determined by differential leveling. The vertical network tie was performed by a horz. field party for horz. obs reductions. Reset procedures were used to establish the elevation. <p>The X, Y, and Z were computed from the position and the ellipsoidal ht. <p>The Laplace correction was computed from DEFLEC99 derived deflections. <p>The ellipsoidal height was determined by GPS observations and is referenced to NAD 83. <p>The geoid height was determined by GEOID03. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td>Units</td><td>Scale Fact</td><td>r Converg.</td></tr><tr><td>SPC CA 3 </td><td> 673,769.801 1</td><td>823,637.666</td><td> MT </td><td>0.99994263</td><td> -1 ' 13 49.1"</td></tr><tr><td>SPC CA 3 </td><td>2,210,526.42 5</td><td>983,051.24 </td><td> sFT </td><td>0.99994263</td><td> -1 ' 13 49.1"</td></tr><tr><td>UTM 10 </td><td>4,211,330.163 </td><td>543,032.811</td><td> MT </td><td>0.99962281</td><td> +0 ' 18 08.2"</td></tr> </table> <p> <b> </b> Elev Factor x Scale Factor = Combined Factor <br> <b>SPC CA 3 </b> 1.00000501 x 0.99994263 = 0.99994764 <br> <b>UTM 10 </b> 1.00000501 x 0.99962281 = 0.99962782 <br> <p> <table border=1><tr><td>PID </td><td>Reference Object </td><td> Distance </td><td>Geod. Az </td></tr><tr><td>DE8067</td><td>941 5126 D TIDAL </td><td>180.213 METERS</td><td>208° 44' </td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p>No superseded survey control is available for this station. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH4303311330(NAD 83) <br>MARKER: DJ = TIDAL STATION DISK <br>SETTING: 32 = SET IN A RETAINING WALL OR CONCRETE LEDGE <br>SP_SET: CULVERT HEADWALL <br>STAMPING: 5126 B 2000 <br>MARK LOGO: NOS <br>MAGNETIC: O = OTHER; SEE DESCRIPTION <br>STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO <br>STABILITY: SURFACE MOTION <br>SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR <br>SATELLITE: SATELLITE OBSERVATIONS - February 02, 2000 <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>20000202</td><td>MONUMENTED </td><td>NOSOPS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NOS OCEANOG SERVICES 2000 (MEI) ABOUT 4 MI SOUTHEAST OF THE CITY OF NOVATO. FROM THE INTERSECTION OF HWY 101 AND HWY 37, DRIVE ABOUT 1 MI SOUTH ON HWY 101 TO THE NEXT EXIT, IGNACIO BLVD/ENTRADA DR AND BEL MARIN KEYS BLVD/HAMILTON FIELD, FOLLOWING THE SIGNAGE TO HAMILTON FIELD. AFTER LOOPING AROUND UNDER THE FREEWAY, TURN RIGHT ON BEL MARIN KEYS BLVD AND DRIVE 0.1 MI, STAYING IN THE RIGHT, EXIT ONLY, LANE WHICH PROVIDES ACCESS TO HWY 101 NORTH AND NAVE DR. TURN RIGHT AND CONTINUE STRAIGHT, SOUTH, ON NAVE DRIVE. CONTINUE FOR 0.8 MI TO MAIN GATE DR, A T-ROAD LEFT. TURN LEFT AND DRIVE 0.5 MI, WHERE THE STREET NAME CHANGES TO PALM DRIVE, AFTER THE RAILROAD TRACK UNDERCROSSING. CONTINUE ON PALM DRIVE FOR 0.15 MI, APPROACHING THE TOWN CENTER BUILDING. BEAR RIGHT, SE, ON SOUTH PALM DRIVE AND DRIVE 0.1 MI TO HAMILTON PARKWAY. TURN RIGHT, SSE, ON HAMILTON PKWY AND DRIVE FOR 0.3 MI TO A CROSSROAD, SAN PABLO AVENUE. TURN RIGHT ON SAN PABLO AVE AND DRIVE 0.1 MI TO A TRAFFIC CIRCLE WITH 5 ROADS ENTERING. DRIVE SEVEN-EIGHTHS OF THE WAY AROUND THE CIRCLE , 0.07 MI, TO SUNSET DRIVE, FOLLOWING SIGNS TO THE SWIMMING POOL. DRIVE ABOUT 0.4 MI, THROUGH COAST GUARD HOUSING, ON SUNSET DR, BEARING LEFT TO ACCESS THE SECOND TRAFFIC CIRCLE AFTER ANOTHER 0.1 MI. DRIVE SEVEN-EIGHTHS OF THE WAY AROUND THE CIRCLE TO CALIENTE DR. DRIVE 0.1 MI, NORTH, ON CALIENTE DR. TURN RIGHT, EASTERLY, ON ANGLED DIRT ROAD TO CONCRETE ROADWAY, THE EXTENSION OF HANGER, SIC, AVENUE, AND DRIVE FOR 0.1 MI TO A T-RD LEFT AND THE MARK ON THE LEFT NORTH OF THE T-RD. THE MARK IS A NOS DISK SET IN THE WEST ELBOW OF A CONCRETE DRAINAGE CULVERT HEADWALL. IT IS 62.3 FT EAST OF THE CENTERLINE OF HANGER AVE, 8.5 FT EAST OF THE NE CORNER OF A STORM GRATE, AND 1.0 FT BELOW ROAD GRADE. THIS STATION WAS OBSERVED IN FEB, 2000 AS PART OF THE HAMILTON FIELD GEODETIC/TIDAL DATUMS DETERMINATION STUDY. DE8069941 5126 BOLThttp://www.geocaching.com/mark/details.asp?PID=DE8069941 5126 BOLTGeocacheGeocache941 5126 BOLTRBNFUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>941 5126 BOLT</h1> <b> PID </b> DE8069 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> PETALUMA POINT (1980) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1992)</b> 38 02 55.11020(N) 122 30 01.62292(W) ADJUSTED <br> <b> NAVD 88 </b> -0.64 (meters) -2.1 (feet) LEVELING <br> <hr> <b> EPOCH DATE </b> 1997.30 <br> <b> X </b> -2,702,154.874 (meters) COMP <br> <b> Y </b> -4,241,459.888 (meters) COMP <br> <b> Z </b> 3,909,676.925 (meters) COMP <br> <b> LAPLACE CORR</b> -1.64 (seconds) DEFLEC99 <br> <b> ELLIP HEIGHT</b> -32.72 (meters) (10/01/02) GPS OBS <br> <b> GEOID HEIGHT</b> -32.08 (meters) GEOID03 <br> <p> <b> HORZ ORDER </b> FIRST <br> <b> VERT ORDER </b> THIRD ? <br> <b> ELLP ORDER </b> FIFTH CLASS I <br> <p>The horizontal coordinates were established by GPS observations and adjusted by the National Geodetic Survey in October 2002. The horizontal coordinates are valid at the epoch date displayed above. The epoch date for horizontal control is a decimal equivalence of Year/Month/Day. <p>The orthometric height was determined by differential leveling. The vertical network tie was performed by a horz. field party for horz. obs reductions. Reset procedures were used to establish the elevation. <p>The X, Y, and Z were computed from the position and the ellipsoidal ht. <p>The Laplace correction was computed from DEFLEC99 derived deflections. <p>The ellipsoidal height was determined by GPS observations and is referenced to NAD 83. <p>The geoid height was determined by GEOID03. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td>Units</td><td>Scale Fact</td><td>r Converg.</td></tr><tr><td>SPC CA 3 </td><td> 673,748.012 1</td><td>824,435.046</td><td> MT </td><td>0.99994263</td><td> -1 ' 13 29.1"</td></tr><tr><td>SPC CA 3 </td><td>2,210,454.94 5</td><td>985,667.31 </td><td> sFT </td><td>0.99994263</td><td> -1 ' 13 29.1"</td></tr><tr><td>UTM 10 </td><td>4,211,329.708 </td><td>543,830.233</td><td> MT </td><td>0.99962366</td><td> +0 ' 18 28.4"</td></tr> </table> <p> <b> </b> Elev Factor x Scale Factor = Combined Factor <br> <b>SPC CA 3 </b> 1.00000513 x 0.99994263 = 0.99994776 <br> <b>UTM 10 </b> 1.00000513 x 0.99962366 = 0.99962879 <br> <p> <table border=1><tr><td> </td><td> Primary Azimuth Mark </td><td>Grid Az</td></tr><tr><td>SPC CA 3 </td><td> 941 5126 D TIDAL </td><td>261° 23' 35.3"</td></tr><tr><td>UTM 10 </td><td> 941 5126 D TIDAL </td><td>259° 51' 37.8"</td></tr> </table> <p> <table border=1><tr><td>PID </td><td>Reference Object </td><td> Distance </td><td>Geod. Az </td></tr><tr><td>DE8067</td><td>941 5126 D TIDAL </td><td>APPROX. 0.9 KM</td><td>260° 10' 06.2"</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p>No superseded survey control is available for this station. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH4383011330(NAD 83) <br>MARKER: B = BOLT <br>SETTING: 4 = OBJECT SURROUNDED BY MASS OF CONCRETE <br>SP_SET: IN CONCRETE PAD <br>MAGNETIC: O = OTHER; SEE DESCRIPTION <br>STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY <br>SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR <br>SATELLITE: SATELLITE OBSERVATIONS - June 06, 2000 <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>UNK </td><td>MONUMENTED </td><td>RBNF</td></tr><tr><td>20000606</td><td>SEE DESCRIPTION </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 2000 (MEI) ABOUT 4 MI SOUTHEAST OF THE CITY OF NOVATO. FROM THE INTERSECTION OF HWY 101 AND HWY 37, DRIVE ABOUT 1 MI SOUTH ON HWY 101 TO THE NEXT EXIT, IGNACIO BLVD/ENTRADA DR AND BEL MARIN KEYS BLVD/HAMILTON FIELD, FOLLOWING THE SIGNAGE TO HAMILTON FIELD. AFTER LOOPING AROUND UNDER THE FREEWAY, TURN RIGHT ON BEL MARIN KEYS BLVD AND DRIVE 0.1 MI, STAYING IN THE RIGHT, EXIT ONLY, LANE WHICH PROVIDES ACCESS TO HWY 101 NORTH AND NAVE DR. TURN RIGHT AND CONTINUE STRAIGHT (SOUTH) ON NAVE DRIVE. CONTINUE FOR 0.8 MI TO MAIN GATE DR, A T-ROAD LEFT. TURN LEFT AND DRIVE 0.5 MI, WHERE THE STREET NAME CHANGES TO PALM DRIVE (AFTER THE RAILROAD TRACK UNDERCROSSING). CONTINUE ON PALM DRIVE FOR 0.15 MI, APPROACHING THE TOWN CENTER BUILDING. BEAR RIGHT (SE) ON SOUTH PALM DRIVE AND DRIVE 0.1 MI TO HAMILTON PARKWAY. TURN RIGHT (SSE) ON HAMILTON PKWY AND DRIVE FOR 0.3 MI TO A CROSSROAD, SAN PABLO AVENUE. TURN RIGHT ON SAN PABLO AVE AND DRIVE 0.1 MI TO A TRAFFIC CIRCLE WITH 5 ROADS ENTERING. DRIVE SEVEN-EIGHTHS OF THE WAY AROUND THE CIRCLE (0.07 MI) TO SUNSET DRIVE (FOLLOWING SIGNS TO THE SWIMMING POOL). DRIVE ABOUT 0.4 MI ON SUNSET DR (THROUGH COAST GUARD HOUSING), BEARING LEFT TO ACCESS THE SECOND TRAFFIC CIRCLE AFTER ANOTHER 0.1 MI. DRIVE SEVEN-EIGHTHS OF THE WAY AROUND THE CIRCLE TO CALIENTE DR. DRIVE 0.1 MI (NORTH) ON CALIENTE DR. TURN RIGHT (EASTERLY) ON ANGLED DIRT ROAD TO CONCRETE ROADWAY AND DRIVE FOR 0.1 MI TO A T-RD LEFT. TURN LEFT AND DRIVE FOR 0.1 MI TO A FOUR-WAY INTERSECTION. TURN LEFT, OPPOSITE THE ENTRANCE TO THE COUNTY OF MARIN SHERIFF TRAINING FACILITY. DRIVE 100 FT AND THEN BEAR RIGHT (NORTH) TO A GATE OPENING IN A CHAIN LINK FENCE (0.1 MI FROM 4-WAY INTERSECTION). BEAR RIGHT AROUND BUILDINGS (ONE MODULAR) AND TURN RIGHT (EAST) BETWEEN GRAY MODULAR OFFICES (IT CORP) AND PALE GREEN OLD BUILDING MARKED B94. AFTER 0.1 MI FROM THE FENCE OPENING, TURN LEFT ON ROAD LEADING TO FORMER AIRPLANE RESCUE TOWER, AND DRIVE ABOUT 0.1 MI TO A T-INTERSECTION WITH ANGLED ROADWAY LEFT (AND TIDAL BENCHMARK 941 5126 A). FROM HERE, DRIVE ABOUT 0.25 MI ON A A VERY ROUGH, UNMAINTAINED ASPHALT ROAD TO THE STATION ON THE LEFT. THE MARK IS A 1/2-IN THREADED BOLT PROJECTING 3 IN ABOVE THE UTILITY VAULT CONCRETE BLOCK. IT IS 377 FT WEST OF THE Y-INTERSECTION FORK (NEAR BENCH MARK COE ONE SRF), 55 FT NORTH OF THE CENTERLINE OF THE ROAD, 4.3 FT SE OF THE NW FACE, 4.2 FT SW OF THE NE FACE, 1.6 FT NE OF SW FACE, AND 0.9 FT ABOVE GROUND SURFACE. THIS STATION WAS OBSERVED IN FEB, 2000 AS PART OF THE HAMILTON FIELD GEODETIC/TIDAL DATUMS DETERMINATION STUDY. DE8064941 5126 C TIDALhttp://www.geocaching.com/mark/details.asp?PID=DE8064941 5126 C TIDALGeocacheGeocache941 5126 C TIDALNOSOPSNOS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>941 5126 C TIDAL</h1> <b> PID </b> DE8064 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> NOVATO (1980) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1992)</b> 38 02 55.30583(N) 122 30 40.19584(W) ADJUSTED <br> <b> NAVD 88 </b> 8.15 (meters) 26.7 (feet) LEVELING <br> <hr> <b> EPOCH DATE </b> 1997.30 <br> <b> X </b> -2,702,949.743 (meters) COMP <br> <b> Y </b> -4,240,957.214 (meters) COMP <br> <b> Z </b> 3,909,687.111 (meters) COMP <br> <b> LAPLACE CORR</b> -1.75 (seconds) DEFLEC99 <br> <b> ELLIP HEIGHT</b> -23.90 (meters) (10/01/02) GPS OBS <br> <b> GEOID HEIGHT</b> -32.06 (meters) GEOID03 <br> <p> <b> HORZ ORDER </b> FIRST <br> <b> VERT ORDER </b> THIRD ? <br> <b> ELLP ORDER </b> FIFTH CLASS I <br> <p>The horizontal coordinates were established by GPS observations and adjusted by the National Geodetic Survey in October 2002. The horizontal coordinates are valid at the epoch date displayed above. The epoch date for horizontal control is a decimal equivalence of Year/Month/Day. <p>The orthometric height was determined by differential leveling. The vertical network tie was performed by a horz. field party for horz. obs reductions. Reset procedures were used to establish the elevation. <p>The X, Y, and Z were computed from the position and the ellipsoidal ht. <p>The Laplace correction was computed from DEFLEC99 derived deflections. <p>The ellipsoidal height was determined by GPS observations and is referenced to NAD 83. <p>The geoid height was determined by GEOID03. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td>Units</td><td>Scale Fact</td><td>r Converg.</td></tr><tr><td>SPC CA 3 </td><td> 673,774.197 1</td><td>823,494.969</td><td> MT </td><td>0.99994263</td><td> -1 ' 13 52.7"</td></tr><tr><td>SPC CA 3 </td><td>2,210,540.84 5</td><td>982,583.08 </td><td> sFT </td><td>0.99994263</td><td> -1 ' 13 52.7"</td></tr><tr><td>UTM 10 </td><td>4,211,330.740 </td><td>542,890.093</td><td> MT </td><td>0.99962266</td><td> +0 ' 18 04.6"</td></tr> </table> <p> <b> </b> Elev Factor x Scale Factor = Combined Factor <br> <b>SPC CA 3 </b> 1.00000375 x 0.99994263 = 0.99994638 <br> <b>UTM 10 </b> 1.00000375 x 0.99962266 = 0.99962641 <br> <p> <table border=1><tr><td>PID </td><td>Reference Object </td><td> Distance </td><td>Geod. Az </td></tr><tr><td>DE8067</td><td>941 5126 D TIDAL </td><td>168.933 METERS</td><td>160° 36' </td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p>No superseded survey control is available for this station. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH4289011331(NAD 83) <br>MARKER: DJ = TIDAL STATION DISK <br>SETTING: 4 = OBJECT SURROUNDED BY MASS OF CONCRETE <br>SP_SET: CONCRETE PAD FOR DRAIN MANHOLE <br>STAMPING: 5126 C 2000 <br>MARK LOGO: NOS <br>MAGNETIC: O = OTHER; SEE DESCRIPTION <br>STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY <br>SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR <br>SATELLITE: SATELLITE OBSERVATIONS - February 02, 2000 <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>20000202</td><td>MONUMENTED </td><td>NOSOPS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NOS OCEANOG SERVICES 2000 (MEI) ABOUT 4 MI SOUTHEAST OF THE CITY OF NOVATO. FROM THE INTERSECTION OF HWY 101 AND HWY 37, DRIVE ABOUT 1 MI SOUTH ON HWY 101 TO THE NEXT EXIT, IGNACIO BLVD/ENTRADA DR AND BEL MARIN KEYS BLVD/HAMILTON FIELD, FOLLOWING THE SIGNAGE TO HAMILTON FIELD. AFTER LOOPING AROUND UNDER THE FREEWAY, TURN RIGHT ON BEL MARIN KEYS BLVD AND DRIVE 0.1 MI, STAYING IN THE RIGHT, EXIT ONLY, LANE WHICH PROVIDES ACCESS TO HWY 101 NORTH AND NAVE DR. TURN RIGHT AND CONTINUE STRAIGHT (SOUTH) ON NAVE DRIVE. CONTINUE FOR 0.8 MI TO MAIN GATE DR, A T-ROAD LEFT. TURN LEFT AND DRIVE 0.5 MI, WHERE THE STREET NAME CHANGES TO PALM DRIVE (AFTER THE RAILROAD TRACK UNDERCROSSING). CONTINUE ON PALM DRIVE FOR 0.15 MI, APPROACHING THE TOWN CENTER BUILDING. BEAR RIGHT (SE) ON SOUTH PALM DRIVE AND DRIVE 0.1 MI TO HAMILTON PARKWAY. TURN RIGHT (SSE) ON HAMILTON PKWY AND DRIVE FOR 0.3 MI TO A CROSSROAD, SAN PABLO AVENUE. TURN RIGHT ON SAN PABLO AVE AND DRIVE 0.1 MI TO A TRAFFIC CIRCLE WITH 5 ROADS ENTERING. DRIVE SEVEN-EIGHTHS OF THE WAY AROUND THE CIRCLE (0.07 MI) TO SUNSET DRIVE (FOLLOWING SIGNS TO THE SWIMMING POOL). DRIVE ABOUT 0.4 MI (THROUGH COAST GUARD HOUSING) ON SUNSET DR, BEARING LEFT TO ACCESS THE SECOND TRAFFIC CIRCLE AFTER ANOTHER 0.1 MI. DRIVE SEVEN-EIGHTHS OF THE WAY AROUND THE CIRCLE TO CALIENTE DR. DRIVE 0.05 MI (NORTH) ON CALIENTE DR. TO THE MARK ON THE LEFT, JUST SOUTH OF A SMALL GRASSY CLEARING AMONG OAK TREES. THE MARK IS A NOS BRASS DISK SET IN A CONCRETE PAD SURROUNDING A DRAIN MANHOLE. IT IS 295 FT NE OF THE NE CORNER OF A UTILITY-SHED AT THE TOP OF CALIENTE RD, 355 FT WEST OF THE EXTENSION OF HANGER AVE, 13.8 FT NORTHWEST OF THE CENTERLINE OF CALIENTE, AND 0.7 FT ABOVE ROAD GRADE. THIS STATION WAS OBSERVED IN FEB, 2000 AS PART OF THE HAMILTON FIELD GEODETIC/TIDAL DATUMS DETERMINATION STUDY. DE8067941 5126 D TIDALhttp://www.geocaching.com/mark/details.asp?PID=DE8067941 5126 D TIDALGeocacheGeocache941 5126 D TIDALNOSOPSNOS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>941 5126 D TIDAL</h1> <b> PID </b> DE8067 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> NOVATO (1980) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1992)</b> 38 02 50.13789(N) 122 30 37.89436(W) ADJUSTED <br> <b> NAVD 88 </b> 11.87 (meters) 38.9 (feet) LEVELING <br> <hr> <b> EPOCH DATE </b> 1997.30 <br> <b> X </b> -2,702,956.770 (meters) COMP <br> <b> Y </b> -4,241,072.646 (meters) COMP <br> <b> Z </b> 3,909,563.912 (meters) COMP <br> <b> LAPLACE CORR</b> -1.74 (seconds) DEFLEC99 <br> <b> ELLIP HEIGHT</b> -20.20 (meters) (10/01/02) GPS OBS <br> <b> GEOID HEIGHT</b> -32.07 (meters) GEOID03 <br> <p> <b> HORZ ORDER </b> B <br> <b> VERT ORDER </b> THIRD ? <br> <b> ELLP ORDER </b> FIFTH CLASS I <br> <p>The horizontal coordinates were established by GPS observations and adjusted by the National Geodetic Survey in October 2002. The horizontal coordinates are valid at the epoch date displayed above. The epoch date for horizontal control is a decimal equivalence of Year/Month/Day. <p>The orthometric height was determined by differential leveling. The vertical network tie was performed by a horz. field party for horz. obs reductions. Reset procedures were used to establish the elevation. <p>The X, Y, and Z were computed from the position and the ellipsoidal ht. <p>The Laplace correction was computed from DEFLEC99 derived deflections. <p>The ellipsoidal height was determined by GPS observations and is referenced to NAD 83. <p>The geoid height was determined by GEOID03. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td>Units</td><td>Scale Fact</td><td>r Converg.</td></tr><tr><td>SPC CA 3 </td><td> 673,613.696 1</td><td>823,547.644</td><td> MT </td><td>0.99994250</td><td> -1 ' 13 51.3"</td></tr><tr><td>SPC CA 3 </td><td>2,210,014.27 5</td><td>982,755.90 </td><td> sFT </td><td>0.99994250</td><td> -1 ' 13 51.3"</td></tr><tr><td>UTM 10 </td><td>4,211,171.756 </td><td>542,947.024</td><td> MT </td><td>0.99962272</td><td> +0 ' 18 06.0"</td></tr> </table> <p> <b> </b> Elev Factor x Scale Factor = Combined Factor <br> <b>SPC CA 3 </b> 1.00000317 x 0.99994250 = 0.99994567 <br> <b>UTM 10 </b> 1.00000317 x 0.99962272 = 0.99962589 <br> <p> <table border=1><tr><td> </td><td> Primary Azimuth Mark </td><td>Grid Az</td></tr><tr><td>SPC CA 3 </td><td> SM 28 </td><td>027° 25' 39.4"</td></tr><tr><td>UTM 10 </td><td> SM 28 </td><td>025° 53' 42.1"</td></tr> </table> <p> <table border=1><tr><td>PID </td><td>Reference Object </td><td> Distance </td><td>Geod. Az </td></tr><tr><td>DE8087</td><td>SM 32 </td><td>369.616 METERS</td><td>000° 03' </td></tr><tr><td>DE8086</td><td>SM 31 </td><td>381.556 METERS</td><td>008° 12' </td></tr><tr><td>DE8085</td><td>SM 28 </td><td>499.825 METERS</td><td>026° 11' 48.1"</td></tr><tr><td>DE8063</td><td>941 5126 B TIDAL </td><td>180.213 METERS</td><td>028° 44' </td></tr><tr><td>DE8060</td><td>FISH AND WILDLIFE 223 </td><td>331.817 METERS</td><td>043° 02' </td></tr><tr><td>DE8065</td><td>941 5126 A TIDAL </td><td>APPROX. 0.5 KM</td><td>072° 52' 18.9"</td></tr><tr><td>DE8061</td><td>CULVERT WEST </td><td>335.391 METERS</td><td>075° 10' </td></tr><tr><td>DE8069</td><td>941 5126 BOLT </td><td>APPROX. 0.9 KM</td><td>080° 09' 43.8"</td></tr><tr><td>DE8066</td><td>941 5126 E TIDAL </td><td>APPROX. 1.2 KM</td><td>083° 22' 00.2"</td></tr><tr><td>DE8068</td><td>941 5126 STA ONE 67 ENGR </td><td>APPROX. 1.1 KM</td><td>083° 47' 46.3"</td></tr><tr><td>JT2533</td><td>HAMILTON FIELD 2 </td><td>267.800 METERS</td><td>105° 07' </td></tr><tr><td>DE8064</td><td>941 5126 C TIDAL </td><td>168.933 METERS</td><td>340° 36' </td></tr><tr><td>DE8070</td><td>CULVERT HEADWALL E OF LEVEE </td><td>339.731 METERS</td><td>355° 10' </td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p>No superseded survey control is available for this station. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH4294711172(NAD 83) <br>MARKER: F = FLANGE-ENCASED ROD <br>SETTING: 49 = STAINLESS STEEL ROD W/O SLEEVE (10 FT.+) <br>STAMPING: 5126 D 2000 <br>MARK LOGO: NOS <br>PROJECTION: RECESSED 5 CENTIMETERS <br>MAGNETIC: O = OTHER; SEE DESCRIPTION <br>STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL <br>SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR <br>SATELLITE: SATELLITE OBSERVATIONS - February 02, 2000 <br>ROD/PIPE-DEPTH: 3.4 meters <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>20000202</td><td>MONUMENTED </td><td>NOSOPS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NOS OCEANOG SERVICES 2000 (MEI) ABOUT 4 MI SOUTHEAST OF THE CITY OF NOVATO. FROM THE INTERSECTION OF HWY 101 AND HWY 37, DRIVE ABOUT 1 MI SOUTH ON HWY 101 TO THE NEXT EXIT, IGNACIO BLVD/ENTRADA DR AND BEL MARIN KEYS BLVD/HAMILTON FIELD, FOLLOWING THE SIGNAGE TO HAMILTON FIELD. AFTER LOOPING AROUND UNDER THE FREEWAY, TURN RIGHT ON BEL MARIN KEYS BLVD AND DRIVE 0.1 MI, STAYING IN THE RIGHT, EXIT ONLY, LANE WHICH PROVIDES ACCESS TO HWY 101 NORTH AND NAVE DR. TURN RIGHT AND CONTINUE STRAIGHT (SOUTH) ON NAVE DRIVE. CONTINUE FOR 0.8 MI TO MAIN GATE DR, A T-ROAD LEFT. TURN LEFT AND DRIVE 0.5 MI, WHERE THE STREET NAME CHANGES TO PALM DRIVE (AFTER THE RAILROAD TRACK UNDERCROSSING). CONTINUE ON PALM DRIVE FOR 0.15 MI, APPROACHING THE TOWN CENTER BUILDING. BEAR RIGHT (SE) ON SOUTH PALM DRIVE AND DRIVE 0.1 MI TO HAMILTON PARKWAY. TURN RIGHT (SSE) ON HAMILTON PKWY AND DRIVE FOR 0.3 MI TO A CROSSROAD, SAN PABLO AVENUE. TURN RIGHT ON SAN PABLO AVE AND DRIVE 0.1 MI TO A TRAFFIC CIRCLE WITH 5 ROADS ENTERING. DRIVE SEVEN-EIGHTHS OF THE WAY AROUND THE CIRCLE (0.07 MI) TO SUNSET DRIVE (FOLLOWING SIGNS TO THE SWIMMING POOL). DRIVE ABOUT 0.4 MI (THROUGH COAST GUARD HOUSING) ON SUNSET DR, BEARING LEFT TO ACCESS THE SECOND TRAFFIC CIRCLE AFTER ANOTHER 0.1 MI TO THE OPPOSITE SIDE OF THE CIRCLE AND THE GRASS TRIANGLE BETWEEN ROADS CASA GRANDE (ON THE LEFT) AND LAS LOMAS DRIVE (ON THE RIGHT). THE MARK IS A 3-D DEEP ROD SET 65 FT SOUTH OF THE NORTH POINT OF THE TRIANGLE, 50.2 FT WEST OF THE FIRE HYDRANT AT 293 CASA GRANDE, AND 27 FT EAST OF THE CENTERLINE OF LAS LOMAS DR. THIS STATION WAS OBSERVED IN FEB, 2000 AS PART OF THE HAMILTON FIELD GEODETIC/TIDAL DATUMS DETERMINATION STUDY. DE8066941 5126 E TIDALhttp://www.geocaching.com/mark/details.asp?PID=DE8066941 5126 E TIDALGeocacheGeocache941 5126 E TIDALNOSOPSNOS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>941 5126 E TIDAL</h1> <b> PID </b> DE8066 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> PETALUMA POINT (1980) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1992)</b> 38 02 54.48659(N) 122 29 50.57746(W) ADJUSTED <br> <b> NAVD 88 </b> 1.77 (meters) 5.8 (feet) LEVELING <br> <hr> <b> EPOCH DATE </b> 1997.30 <br> <b> X </b> -2,701,935.127 (meters) COMP <br> <b> Y </b> -4,241,616.177 (meters) COMP <br> <b> Z </b> 3,909,663.269 (meters) COMP <br> <b> LAPLACE CORR</b> -1.64 (seconds) DEFLEC99 <br> <b> ELLIP HEIGHT</b> -30.31 (meters) (10/01/02) GPS OBS <br> <b> GEOID HEIGHT</b> -32.08 (meters) GEOID03 <br> <p> <b> HORZ ORDER </b> FIRST <br> <b> VERT ORDER </b> THIRD ? <br> <b> ELLP ORDER </b> FIFTH CLASS I <br> <p>The horizontal coordinates were established by GPS observations and adjusted by the National Geodetic Survey in October 2002. The horizontal coordinates are valid at the epoch date displayed above. The epoch date for horizontal control is a decimal equivalence of Year/Month/Day. <p>The orthometric height was determined by differential leveling. The vertical network tie was performed by a horz. field party for horz. obs reductions. Reset procedures were used to establish the elevation. <p>The X, Y, and Z were computed from the position and the ellipsoidal ht. <p>The Laplace correction was computed from DEFLEC99 derived deflections. <p>The ellipsoidal height was determined by GPS observations and is referenced to NAD 83. <p>The geoid height was determined by GEOID03. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td>Units</td><td>Scale Fact</td><td>r Converg.</td></tr><tr><td>SPC CA 3 </td><td> 673,723.039 1</td><td>824,703.867</td><td> MT </td><td>0.99994261</td><td> -1 ' 13 22.3"</td></tr><tr><td>SPC CA 3 </td><td>2,210,373.00 5</td><td>986,549.27 </td><td> sFT </td><td>0.99994261</td><td> -1 ' 13 22.3"</td></tr><tr><td>UTM 10 </td><td>4,211,311.939 </td><td>544,099.540</td><td> MT </td><td>0.99962395</td><td> +0 ' 18 35.2"</td></tr> </table> <p> <b> </b> Elev Factor x Scale Factor = Combined Factor <br> <b>SPC CA 3 </b> 1.00000476 x 0.99994261 = 0.99994737 <br> <b>UTM 10 </b> 1.00000476 x 0.99962395 = 0.99962870 <br> <p> <table border=1><tr><td> </td><td> Primary Azimuth Mark </td><td>Grid Az</td></tr><tr><td>SPC CA 3 </td><td> 941 5126 D TIDAL </td><td>264° 35' 51.7"</td></tr><tr><td>UTM 10 </td><td> 941 5126 D TIDAL </td><td>263° 03' 54.2"</td></tr> </table> <p> <table border=1><tr><td>PID </td><td>Reference Object </td><td> Distance </td><td>Geod. Az </td></tr><tr><td>DE8067</td><td>941 5126 D TIDAL </td><td>APPROX. 1.2 KM</td><td>263° 22' 29.4"</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p>No superseded survey control is available for this station. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH4410011312(NAD 83) <br>MARKER: F = FLANGE-ENCASED ROD <br>SETTING: 49 = STAINLESS STEEL ROD W/O SLEEVE (10 FT.+) <br>STAMPING: 5126 E 2000 <br>MARK LOGO: NOS <br>PROJECTION: RECESSED 5 CENTIMETERS <br>MAGNETIC: O = OTHER; SEE DESCRIPTION <br>STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL <br>SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR <br>SATELLITE: SATELLITE OBSERVATIONS - February 02, 2000 <br>ROD/PIPE-DEPTH: 28.7 meters <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>20000202</td><td>MONUMENTED </td><td>NOSOPS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NOS OCEANOG SERVICES 2000 (MEI) ABOUT 4 MI SOUTHEAST OF THE CITY OF NOVATO. FROM THE INTERSECTION OF HWY 101 AND HWY 37, DRIVE ABOUT 1 MI SOUTH ON HWY 101 TO THE NEXT EXIT, IGNACIO BLVD/ENTRADA DR AND BEL MARIN KEYS BLVD/HAMILTON FIELD, FOLLOWING THE SIGNAGE TO HAMILTON FIELD. AFTER LOOPING AROUND UNDER THE FREEWAY, TURN RIGHT ON BEL MARIN KEYS BLVD AND DRIVE 0.1 MI, STAYING IN THE RIGHT, EXIT ONLY, LANE WHICH PROVIDES ACCESS TO HWY 101 NORTH AND NAVE DR. TURN RIGHT AND CONTINUE STRAIGHT (SOUTH) ON NAVE DRIVE. CONTINUE FOR 0.8 MI TO MAIN GATE DR, A T-ROAD LEFT. TURN LEFT AND DRIVE 0.5 MI, WHERE THE STREET NAME CHANGES TO PALM DRIVE (AFTER THE RAILROAD TRACK UNDERCROSSING). CONTINUE ON PALM DRIVE FOR 0.15 MI, APPROACHING THE TOWN CENTER BUILDING. BEAR RIGHT (SE) ON SOUTH PALM DRIVE AND DRIVE 0.1 MI TO HAMILTON PARKWAY. TURN RIGHT (SSE) ON HAMILTON PKWY AND DRIVE FOR 0.3 MI TO A CROSSROAD, SAN PABLO AVENUE. TURN RIGHT ON SAN PABLO AVE AND DRIVE 0.1 MI TO A TRAFFIC CIRCLE WITH 5 ROADS ENTERING. DRIVE SEVEN-EIGHTHS OF THE WAY AROUND THE CIRCLE (0.07 MI) TO SUNSET DRIVE (FOLLOWING SIGNS TO THE SWIMMING POOL). DRIVE ABOUT 0.4 MI ON SUNSET DR (THROUGH COAST GUARD HOUSING), BEARING LEFT TO ACCESS THE SECOND TRAFFIC CIRCLE AFTER ANOTHER 0.1 MI. DRIVE SEVEN-EIGHTHS OF THE WAY AROUND THE CIRCLE TO CALIENTE DR. DRIVE 0.1 MI (NORTH) ON CALIENTE DR. TURN RIGHT (EASTERLY) ON ANGLED DIRT ROAD TO CONCRETE ROADWAY AND DRIVE FOR 0.1 MI TO A T-RD LEFT. TURN LEFT AND DRIVE FOR 0.1 MI TO A FOUR-WAY INTERSECTION. TURN LEFT, OPPOSITE THE ENTRANCE TO THE COUNTY OF MARIN SHERIFF TRAINING FACILITY. DRIVE 100 FT AND THEN BEAR RIGHT (NORTH) TO A GATE OPENING IN A CHAIN LINK FENCE (0.1 MI FROM 4-WAY INTERSECTION). BEAR RIGHT AROUND BUILDINGS (ONE MODULAR) AND TURN RIGHT (EAST) BETWEEN GRAY MODULAR OFFICES (IT CORP) AND PALE GREEN OLD BUILDING MARKED B94. AFTER 0.1 MI FROM THE FENCE OPENING, TURN LEFT ON ROAD LEADING TO FORMER AIRPLANE RESCUE TOWER, AND DRIVE ABOUT 0.1 MI TO A T-INTERSECTION WITH ANGLED ROADWAY LEFT (AND TIDAL BENCHMARK 941 5126 A). FROM HERE, DRIVE 0.3 MI ON A VERY ROUGH, UNMAINTAINED ASPHALT ROAD TO A Y-INTERSECTION. TAKE THE RIGHT LEG, (PASSING BENCHMARK COE ONE SRF ON THE RIGHT), AND DRIVE EASTERLY (PAST THE RESCUE TOWER REMAINS) AND THEN SOUTHERLY FOR ABOUT 0.1 MI TO THE STATION ON THE RIGHT. THE MARK IS A 3-D DEEP ROD 85 FT SE OF THE CENTERLINE OF THE ROAD (LEADING TO THE ROWS OF APPROACH LIGHTS), 82 FT NORTH OF THE NORTH BANK OF THE CHANNEL LEADING TO THE RESCUE TOWER WINCH PLATFORM, 72.0 FT DUE SOUTH OF THE EDGE OF THE ROAD AND A SIGN FACING AWAY FROM THE ROAD, READING -US GOVT PROPERTY, DO NOT TRESPASS-, AND 2.2 FT NORTH OF AN ORANGE FIBERGLASS NOAA WITNESS POST. THIS STATION WAS OBSERVED IN FEB, 2000 AS PART OF THE HAMILTON FIELD GEODETIC/TIDAL DATUMS DETERMINATION STUDY. JT0915941 5228 TIDAL 1http://www.geocaching.com/mark/details.asp?PID=JT0915941 5228 TIDAL 1GeocacheGeocache941 5228 TIDAL 1CGSCGS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <b> TIDAL BM </b> This is a Tidal Bench Mark. <br> <h1>941 5228 TIDAL 1</h1> <b> PID </b> JT0915 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> INVERNESS (1976) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 38 06 12. (N) 122 51 29. (W) SCALED <br> <b> NAVD 88 </b> 3.158 (meters) 10.36 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.16 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 3.156 (meters) 10.35 (feet) COMP <br> <b> MODELED GRAV</b> 980,009.1 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS II <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991. <p>This Tidal Bench Mark is designated as VM 8616 by the Center for Operational Oceanographic Products and Services. <p>The geoid height was determined by GEOID03. <p>The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.). <p>The modeled gravity was interpolated from observed gravity values. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 680,550. </td><td> 1,793,210. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (12/02/92) 2.354 (m) 7.72 (f) ADJUSTED 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH124172(NAD 83) <br>MARKER: DJ = TIDAL STATION DISK <br>SETTING: 32 = SET IN A RETAINING WALL OR CONCRETE LEDGE <br>SP_SET: HEADWALL <br>STAMPING: NO 1 1931 <br>MARK LOGO: CGS <br>STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO <br>STABILITY: SURFACE MOTION <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1931 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1951 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1968 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1987 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1951 0.6 MI NW FROM INVERNESS. 0.6 MILES NORTHWEST OF THE POST OFFICE AT INVERNESS ALONG THE SIR FRANCIS DRAKE HIGHWAY, AT THE T JUNCTION OF A PAVED ROAD LEADING SOUTHWEST, AT A CONCRETE BRIDGE OVER A SMALL CREEK, IN THE TOP OF THE NORTHEAST HEAD WALL, 41.0 FEET SOUTHEAST OF THE PROLONGATION OF THE CENTER LINE OF THE ROAD, 15.4 FEET NORTHEAST OF THE CENTER LINE OF THE HIGHWAY, 2.0 FEET SOUTHEAST OF THE NORTHWEST END OF THE HEAD WALL, AND SET ABOUT 1 FOOT ABOVE THE HIGHWAY. NOTE-- THIS BRIDGE WAS APPARENTLY HIT BY A HEAVY OBJECT AT THE EAST CORNER, BUT THE MARK WAS NOT DISTURBED. <p> <h2>STATION RECOVERY (1968) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1968 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1987) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1987 RECOVERED IN GOOD CONDITION WITH THE FOLLOWING EXCEPTIONS. NOTE--THE PAVED ROAD LEADING SOUTHWEST MENTIONED IN THE ORIGINAL DESCRIPTION IS NOW VISION ROAD, AND THE MARK IS LEVEL WITH THE HIGHWAY. JT0914941 5228 TIDAL 2http://www.geocaching.com/mark/details.asp?PID=JT0914941 5228 TIDAL 2GeocacheGeocache941 5228 TIDAL 2CGSCGS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <b> TIDAL BM </b> This is a Tidal Bench Mark. <br> <h1>941 5228 TIDAL 2</h1> <b> PID </b> JT0914 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> INVERNESS (1976) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 38 06 11. (N) 122 51 29. (W) SCALED <br> <b> NAVD 88 </b> 2.639 (meters) 8.66 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.16 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 2.637 (meters) 8.65 (feet) COMP <br> <b> MODELED GRAV</b> 980,008.8 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS II <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991. <p>This Tidal Bench Mark is designated as VM 8617 by the Center for Operational Oceanographic Products and Services. <p>The geoid height was determined by GEOID03. <p>The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.). <p>The modeled gravity was interpolated from observed gravity values. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 680,520. </td><td> 1,793,210. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (12/02/92) 1.835 (m) 6.02 (f) ADJUSTED 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH124172(NAD 83) <br>MARKER: DJ = TIDAL STATION DISK <br>SETTING: 32 = SET IN A RETAINING WALL OR CONCRETE LEDGE <br>SP_SET: HEADWALL <br>STAMPING: NO 2 1931 <br>MARK LOGO: CGS <br>STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO <br>STABILITY: SURFACE MOTION <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1931 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1951 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1959 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1987 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1951 0.6 MI NW FROM INVERNESS. 0.6 MILES NORTHWEST OF THE POST OFFICE AT INVERNESS ALONG THE SIR FRANCIS DRAKE HIGHWAY, AT THE T JUNCTION OF A PAVED ROAD LEADING SOUTHWEST, AT A CONCRETE BRIDGE OVER A SMALL CREEK, IN THE TOP OF THE SOUTHWEST HEAD WALL, 67 1/2 FEET SOUTHEAST OF THE CENTER LINE OF THE ROAD, 41.6 FEET SOUTH OF TIDAL MARK NO. 1, 17.7 FEET SOUTHWEST OF THE CENTER LINE OF THE HIGHWAY, 2.1 FEET NORTHWEST OF THE SOUTHEAST END OF THE HEAD WALL, AND SET ABOUT 1 FOOT HIGHER THAN THE HIGHWAY. <p> <h2>STATION RECOVERY (1959) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1959 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1987) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1987 RECOVERED IN GOOD CONDITION WITH THE FOLLOWING EXCEPTIONS. NOTE--THE PAVED ROAD LEADING SOUTHWEST MENTIONED IN THE ORIGINAL DESCRIPTION IS NOW VISION ROAD, AND THE MARK IS LEVEL WITH THE HIGHWAY. JT0913941 5228 TIDAL 3http://www.geocaching.com/mark/details.asp?PID=JT0913941 5228 TIDAL 3GeocacheGeocache941 5228 TIDAL 3CGSCGS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <b> TIDAL BM </b> This is a Tidal Bench Mark. <br> <h1>941 5228 TIDAL 3</h1> <b> PID </b> JT0913 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> INVERNESS (1976) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 38 06 07. (N) 122 51 26. (W) SCALED <br> <b> NAVD 88 </b> 3.059 (meters) 10.04 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.16 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 3.057 (meters) 10.03 (feet) COMP <br> <b> MODELED GRAV</b> 980,008.8 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS II <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991. <p>This Tidal Bench Mark is designated as VM 8618 by the Center for Operational Oceanographic Products and Services. <p>The geoid height was determined by GEOID03. <p>The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.). <p>The modeled gravity was interpolated from observed gravity values. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 680,390. </td><td> 1,793,280. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (12/02/92) 2.255 (m) 7.40 (f) ADJUSTED 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH125171(NAD 83) <br>MARKER: DJ = TIDAL STATION DISK <br>SETTING: 32 = SET IN A RETAINING WALL OR CONCRETE LEDGE <br>SP_SET: ROCK WALL <br>STAMPING: NO 3 1931 <br>MARK LOGO: CGS <br>STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO <br>STABILITY: SURFACE MOTION <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1931 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1951 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1959 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1987 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1951 0.5 MI NW FROM INVERNESS. 0.5 MILES NORTHWEST ALONG THE SIR FRANCIS DRAKE HIGHWAY FROM THE POST OFFICE AT INVERNESS, AT A T JUNCTION OF A PRIVATE DRIVEWAY LEADING SOUTHWEST TO A TWO-STORY FRAME HOUSE, IN THE TOP AND ABOUT IN THE CENTER OF A ROCK WALL, 66.7 FEET SOUTHWEST OF THE CENTER LINE OF THE HIGHWAY, 37.0 FEET NORTHWEST OF THE CENTER LINE OF THE DRIVEWAY, AND SET 2 1/2 FEET ABOVE THE GROUND. <p> <h2>STATION RECOVERY (1959) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1959 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1987) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1987 RECOVERED IN GOOD CONDITION. JT9547941 5252 E TIDALhttp://www.geocaching.com/mark/details.asp?PID=JT9547941 5252 E TIDALGeocacheGeocache941 5252 E TIDALNOSCGS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <b> HT_MOD </b> This is a Height Modernization Survey Station. <br> <b> TIDAL BM </b> This is a Tidal Bench Mark. <br> <h1>941 5252 E TIDAL</h1> <b> PID </b> JT9547 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> NOVATO (1980) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1992)</b> 38 06 38.48986(N) 122 30 12.17558(W) ADJUSTED <br> <b> NAVD 88 </b> 1.77 (meters) 5.8 (feet) GPS OBS <br> <hr> <b> EPOCH DATE </b> 1997.30 <br> <b> X </b> -2,700,090.351 (meters) COMP <br> <b> Y </b> -4,237,740.843 (meters) COMP <br> <b> Z </b> 3,915,099.896 (meters) COMP <br> <b> LAPLACE CORR</b> -1.83 (seconds) DEFLEC99 <br> <b> ELLIP HEIGHT</b> -30.22 (meters) (10/01/02) GPS OBS <br> <b> GEOID HEIGHT</b> -31.96 (meters) GEOID03 <br> <p> <b> HORZ ORDER </b> FIRST <br> <b> ELLP ORDER </b> FIFTH CLASS I <br> <p>The horizontal coordinates were established by GPS observations and adjusted by the National Geodetic Survey in October 2002. The horizontal coordinates are valid at the epoch date displayed above. The epoch date for horizontal control is a decimal equivalence of Year/Month/Day. <p>The orthometric height was determined by GPS observations and a high-resolution geoid model using precise GPS observation and processing techniques. It supersedes the leveled height previously determined for this station. <p>This Tidal Bench Mark is designated as VM 8627 by the Center for Operational Oceanographic Products and Services. <p>The X, Y, and Z were computed from the position and the ellipsoidal ht. <p>The Laplace correction was computed from DEFLEC99 derived deflections. <p>The ellipsoidal height was determined by GPS observations and is referenced to NAD 83. <p>The geoid height was determined by GEOID03. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td>Units</td><td>Scale Fact</td><td>r Converg.</td></tr><tr><td>SPC CA 3 </td><td> 680,638.977 1</td><td>824,325.247</td><td> MT </td><td>0.99994883</td><td> -1 ' 13 35.5"</td></tr><tr><td>SPC CA 3 </td><td>2,233,063.04 5</td><td>985,307.08 </td><td> sFT </td><td>0.99994883</td><td> -1 ' 13 35.5"</td></tr><tr><td>UTM 10 </td><td>4,218,213.052 </td><td>543,536.236</td><td> MT </td><td>0.99962334</td><td> +0 ' 18 23.4"</td></tr> </table> <p> <b> </b> Elev Factor x Scale Factor = Combined Factor <br> <b>SPC CA 3 </b> 1.00000474 x 0.99994883 = 0.99995357 <br> <b>UTM 10 </b> 1.00000474 x 0.99962334 = 0.99962808 <br> <p> <h2>Superseded Survey Control</h2>
<p> NAVD 88 (06/15/91) 1.770 (m) 5.81 (f) ADJUSTED 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH4353618213(NAD 83) <br>MARKER: DJ = TIDAL STATION DISK <br>SETTING: 46 = COPPER-CLAD STEEL ROD W/O SLEEVE (10 FT.+) <br>SP_SET: GALVANIZED STEEL ROD <br>STAMPING: 5252 E 1977 <br>MARK LOGO: CGS <br>PROJECTION: PROJECTING 3 CENTIMETERS <br>MAGNETIC: I = MARKER IS A STEEL ROD <br>STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL <br>SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR <br>SATELLITE: SATELLITE OBSERVATIONS - June 06, 2000 <br>ROD/PIPE-DEPTH: 23.5 meters <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1977 </td><td>MONUMENTED </td><td>NOS</td></tr><tr><td>1989 </td><td>GOOD </td><td>NGS</td></tr><tr><td>20000606</td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1989 15.2 KM (9.45 MI) NE FROM SAN RAFAEL. 10.1 KM (6.30 MI) NORTHERLY ALONG U.S. HIGHWAY 101 FROM THE JUNCTION OF SAN PEDRO ROAD IN SAN RAFAEL, THENCE 4.1 KM (2.55 MI) NORTHEAST ALONG STATE HIGHWAY 37, THENCE 1.0 KM (0.60 MI) NORTHEAST ALONG THE NORTHWESTERN PACIFIC RAILROAD, AT BLACK POINT, 28.7 M (94.2 FT) SOUTH OF A RAILROAD SIGNAL, 21.9 M (71.9 FT) SOUTHEAST OF THE NEAR RAIL, 17.4 M (57.1 FT) SOUTHWEST OF THE CENTER OF A GATE AND DIRT ROAD. AND 0.8 M (2.6 FT) NORTH-NORTHWEST OF A UTILITY POLE. NOTE--ACCESS TO THE DISK IS THROUGH A 4-INCH LOGO CAP. THE MARK IS 2.0 M BELOW THE TRACKS. <p> <h2>STATION RECOVERY (2000) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 2000 (MEI) AT BLACK POINT, 2.7 MI EAST OF THE INTERSECTION OF HWY 101 AND HWY 37, NEAR NOVATO. DRIVE EAST OF HWY 37 FOR 2.7 MI TO THE BLACK POINT/ATHERTON RD EXIST. FROM THE T-INTERSECTION OF THE EASTBOUND HWY 37 EXIT RAMP AND ATHERTON AVE (EXTENDING NORTH UNDER HWY 37), DRIVE 0.4 MI EAST ON HARBOR DR TO THE INTERSECTION WITH GRANDVIEW RD, A T-RD RIGHT. TURN RIGHT (SOUTH) AND DRIVE LESS THAN 300 FT ON GRANDVIEW RD, CROSSING THE RR TRACKS, TO A SIDE RD LEFT, BEATTIE LANE. TURN LEFT AND DRIVE 0.2 MI ON A NARROW, WINDING, PAVED RD, BEARING LEFT ON A FLAT GRAVEL RD, NOT TAKING HILLSIDE TRAIL BEARING RIGHT AND UPHILL. DRIVE 200 FT AND THEN TURN LEFT ON A GRAVEL DRIVE, TURNING BEFORE THE TALL STONE-AND-TIMBER GATEWAY TO MORE RESIDENCES. DRIVE 200 FT TO THE END OF THE LANE WHERE A GATE BLOCKS ACCESS TO THE NORTHWESTERN PACIFIC RR R/W. THE MARK IS TO THE LEFT ABOUT 50 FT IN MARSH GRASSES. SET IN WHITE PVC PROTECTIVE CASING, THE MARK IS ADJACENT (SE OF) A WOODEN LATH STAKE, 4.5 FT NW OF A RUSTY 2-IN DIAMETER PIPE STANDING 7 FT, TOPPED WITH A U-SHAPED JOINT, 16.5 FT NW OF THE WESTERN OF TWO RR TIES USED TO HOLD ORANGE MESH FENCING TO DEMARCATE THE EDGE OF A GRAVELED RESIDENTIAL PARKING AREA, 43 FT SW OF A YELLOW FIRE HYDRANT, 53 FT SW OF THE CENTER OF A METAL GATE FOR THE ACCESS RD TO THE RR R/W, 52 FT SE OF TWO ORANGE VIACOM FIBER OPTIC CABLE WITNESS POSTS, 71 FT SW OF POWER POLE PGE 026050 WITH ONE TRANSFORMER, 72 FT SE FROM THE SOUTH RAIL OF THE RR, AND ABOUT 103 FT SSW OF THE RR SIGNAL BOX NEAR THE TRACK. THE MARK IS A TIDAL STATION DESK, DRIVEN TO 77 FT, SET 0.45 FT BELOW THE TOP OF 4-IN PVC CASING. BECAUSE IT IS IMMEDIATELY ADJACENT A 4FT-WIDE SLOUGH, IT MAY BE SUBMERGED (IS SUBMERGED DURING HIGH TIDE/STORM SURGE/HEAVY PRECIPITATION EVENTS) OR THERE MAY BE STANDING WATER INSIDE THE CASING. THIS STATION WAS OBSERVED IN FEB, 2000 AS PART OF THE HAMILTON FIELD GEODETIC/TIDAL DATUMS DETERMINATION STUDY. JT0905941 5252 TIDAL 11http://www.geocaching.com/mark/details.asp?PID=JT0905941 5252 TIDAL 11GeocacheGeocache941 5252 TIDAL 11CGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>941 5252 TIDAL 11</h1> <b> PID </b> JT0905 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> NOVATO (1980) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 38 06 38. (N) 122 30 12. (W) SCALED <br> <b> NAVD 88 </b> 4.67 (+/-2cm) 15.3 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -31.96 (meters) GEOID03 <br> <p> <b> VERT ORDER </b> FIRST CLASS II (See Below) <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the NGVD 29 superseded value. <p>The geoid height was determined by GEOID03. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 680,620. </td><td> 1,824,330. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/92) 3.86 (m) 12.7 (f) COMPUTED 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH435181(NAD 83) <br>MARKER: DJ = TIDAL STATION DISK <br>SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT <br>SP_SET: SET IN TOP OF CONCRETE MONUMENT <br>STAMPING: NO 11 1949 <br>STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO <br>STABILITY: SURFACE MOTION <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1949 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1950 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1964 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1987 </td><td>MARK NOT FOUND </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1950 AT BLACK POINT. AT BLACK POINT, ALONG THE NORTHWESTERN PACIFIC RAILROAD, 23 RAILS NORTHEAST OF THE NORTHEAST END OF THE POST OFFICE AND GENERAL STORE, 7 RAILS SOUTHWEST OF THE SOUTHWEST END A DRAW BRIDGE OVER PETALUMA CREEK, AT THE NORTHEAST END OF A CUT, IN LINE WITH A ROW OF TELEGRAPH POLES, 42.0 FEET NORTH OF AND ACROSS THE TRACKS FROM TIDAL 12, 18.4 FEET NORTHWEST OF THE NORTHWEST RAIL, ABOUT 1/2 FOOT HIGHER THAN THE TRACKS, AND SET IN THE TOP OF A CONCRETE POST PROJECTING 0.2 FOOT ABOVE THE GROUND. <p> <h2>STATION RECOVERY (1964) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1964 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1987) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1987 THERE HAS BEEN GRADING AT THE DESCRIBED LOCATION. JT0903941 5252 TIDAL 13http://www.geocaching.com/mark/details.asp?PID=JT0903941 5252 TIDAL 13GeocacheGeocache941 5252 TIDAL 13CGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <b> TIDAL BM </b> This is a Tidal Bench Mark. <br> <h1>941 5252 TIDAL 13</h1> <b> PID </b> JT0903 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> NOVATO (1980) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 38 06 32. (N) 122 30 21. (W) SCALED <br> <b> NAVD 88 </b> 2.34 (+/-2cm) 7.7 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -31.96 (meters) GEOID03 <br> <p> <b> VERT ORDER </b> FIRST CLASS II (See Below) <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the NGVD 29 superseded value. <p>This Tidal Bench Mark is designated as VM 8626 by the Center for Operational Oceanographic Products and Services. <p>The geoid height was determined by GEOID03. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 680,440. </td><td> 1,824,110. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/92) 1.53 (m) 5.0 (f) COMPUTED 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH433180(NAD 83) <br>MARKER: DB = BENCH MARK DISK <br>SETTING: 30 = SET IN A LIGHT STRUCTURE <br>SP_SET: CULVERT <br>STAMPING: NO 13 1951 <br>STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1951 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1956 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1964 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1987 </td><td>MARK NOT FOUND </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1956 AT BLACK POINT. AT BLACK POINT, ALONG HARBOR DRIVE (FORMERLY STATE HIGHWAY 37), 285 FEET NORTHEAST OF THE CENTER OF THE Y JUNCTION OF GRANDVIEW AVENUE, 164.4 FEET NORTHWEST OF AND ACROSS THE NORTHWESTERN PACIFIC RAILROAD FROM THE WEST CORNER OF THE GENERAL STORE AND POST OFFICE, AT AN 18-INCH CORRUGATED METAL PIPE CULVERT UNDER THE DRIVE, IN THE TOP OF THE SOUTHWEST END OF THE SOUTHEAST CONCRETE HEAD WALL, 85.8 FEET NORTHWEST OF THE NORTHWEST RAIL, 16 1/2 FEET SOUTHEAST OF THE CENTER LINE OF THE DRIVE, AND ABOUT 1 1/2 FEET LOWER THAN THE DRIVE. <p> <h2>STATION RECOVERY (1964) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1964 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1987) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1987 THERE HAS BEEN ROAD CONSTRUCTION AT THE DESCRIBED LOCATION AND THE CULVERT HAS BEEN REMOVED. JT0907941 5252 TIDAL 8http://www.geocaching.com/mark/details.asp?PID=JT0907941 5252 TIDAL 8GeocacheGeocache941 5252 TIDAL 8CGSCGS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <b> TIDAL BM </b> This is a Tidal Bench Mark. <br> <h1>941 5252 TIDAL 8</h1> <b> PID </b> JT0907 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> NOVATO (1980) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 38 06 43. (N) 122 30 06. (W) SCALED <br> <b> NAVD 88 </b> 2.690 (meters) 8.83 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -31.96 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 2.689 (meters) 8.82 (feet) COMP <br> <b> MODELED GRAV</b> 980,002.7 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS II <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991. <p>This Tidal Bench Mark is designated as VM 8628 by the Center for Operational Oceanographic Products and Services. <p>This Tidal Bench Mark is designated as VM 15721 by the Center for Operational Oceanographic Products and Services. <p>The geoid height was determined by GEOID03. <p>The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.). <p>The modeled gravity was interpolated from observed gravity values. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 680,780. </td><td> 1,824,480. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/92) 1.88 (m) 6.2 (f) COMPUTED 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH436183(NAD 83) <br>MARKER: DJ = TIDAL STATION DISK <br>SETTING: 38 = SET IN THE ABUTMENT OR PIER OF A LARGE BRIDGE <br>SP_SET: RAILROAD PIER <br>MARK LOGO: CGS <br>STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>UNK </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1950 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1964 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1987 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1950 0.3 MI NE FROM BLACK POINT. 0.3 MILE NORTHEAST ALONG THE NORTHWESTERN PACIFIC RAILROAD FROM THE POST OFFICE AND GENERAL STORE AT BLACK POINT, AT THE DRAW BRIDGE OVER PETALUMA CREEK, IN THE TOP OF THE SOUTHEAST END OF THE NORTHEAST CONCRETE PIER, 8.8 FEET SOUTHEAST OF THE SOUTHEAST RAIL, AND ABOUT 6.0 FET LOWER THAN THE TOP OF THE RAIL. <p> <h2>STATION RECOVERY (1964) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1964 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1987) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1987 RECOVERED IN GOOD CONDITION. A NEW DESCRIPTION FOLLOWS. 10.1 KM (6.30 MI) NORTHERLY ALONG U.S. HIGHWAY 101 FROM THE JUNCTION OF SAN PEDRO ROAD IN SAN RAFAEL, THENCE 4.1 KM (2.55 MI) NORTHEASTERLY ALONG STATE HIGHWAY 37, THENCE 1.2 KM (0.75 MI) NORTHEASTERLY ALONG THE NORTHWESTERN PACIFIC RAILROAD, IN THE SOUTHEAST END OF THE CONCRETE PIER AT THE NORTHEAST END OF THE SWING BRIDGE SPANNING PETALUMA CREEK, AND 2.7 M (8.9 FT) SOUTHEAST OF THE NEAR RAIL. THE MARK IS 0.2 M BELOW THE TRACKS. JT0906941 5252 TIDAL 9http://www.geocaching.com/mark/details.asp?PID=JT0906941 5252 TIDAL 9GeocacheGeocache941 5252 TIDAL 9CGSCGS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <b> TIDAL BM </b> This is a Tidal Bench Mark. <br> <h1>941 5252 TIDAL 9</h1> <b> PID </b> JT0906 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> NOVATO (1980) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 38 06 45. (N) 122 30 05. (W) SCALED <br> <b> NAVD 88 </b> 2.743 (meters) 9.00 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -31.96 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 2.742 (meters) 9.00 (feet) COMP <br> <b> MODELED GRAV</b> 980,002.6 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS II <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991. <p>This Tidal Bench Mark is designated as VM 8629 by the Center for Operational Oceanographic Products and Services. <p>This Tidal Bench Mark is designated as VM 15722 by the Center for Operational Oceanographic Products and Services. <p>The geoid height was determined by GEOID03. <p>The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.). <p>The modeled gravity was interpolated from observed gravity values. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 680,840. </td><td> 1,824,500. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/92) 1.94 (m) 6.4 (f) COMPUTED 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH437184(NAD 83) <br>MARKER: DJ = TIDAL STATION DISK <br>SETTING: 38 = SET IN THE ABUTMENT OR PIER OF A LARGE BRIDGE <br>SP_SET: PIER <br>MARK LOGO: CGS <br>STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1950 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1964 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1987 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY COAST AND GEODETIC SURVEY 1950 0.3 MI NE FROM BLACK POINT. 0.3 MILE NORTHEAST ALONG THE NORTHWESTERN PACIFIC RAILROAD FROM THE POST OFFICE AND GENERAL STORE AT BLACK POINT, AT THE DRAW BRIDGE OVER PETALUMA CREEK, IN THE TOP OF THE SOUTH CORNER OF THE SOUTHWEST CONCRETE PIER, 4.9 FEET SOUTHEAST OF THE SOUTHEAST RAIL, 1.5 FEET NORTHEAST OF THE SOUTHWEST EDGE OF THE PIER, AND ABOUT 6.0 FEET LOWER THAN THE TOP OF THE RAIL. <p> <h2>STATION RECOVERY (1964) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1964 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1987) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1987 RECOVERED IN GOOD CONDITION. A NEW DESCRIPTION FOLLOWS. 10.1 KM (6.30 MI) NORTHERLY ALONG U.S. HIGHWAY 101 FROM THE JUNCTION OF SAN PEDRO ROAD IN SAN RAFAEL, THENCE 4.1 KM (2.55 MI) NORTHEASTERLY ALONG STATE HIGHWAY 37, THENCE 1.1 KM (0.70 MI) NORTHEAST ALONG THE NORTHWESTERN PACIFIC RAILROAD, IN TOP OF THE SOUTH END OF THE MOST SOUTHWESTERLY 1 OF 2 CONCRETE PIERS AT THE SOUTHWEST END OF THE SWING BRIDGE SPANNING PETALUMA CREEK, 1.5 M (4.9 FT) SOUTHEAST OF THE NEAR RAIL, AND 0.5 M (1.6 FT) NORTHEAST OF THE SOUTHWEST EDGE OF THE PIER. THE MARK IS 1.8 M BELOW THE TRACKS. JT0670941 5339 TIDAL 3http://www.geocaching.com/mark/details.asp?PID=JT0670941 5339 TIDAL 3GeocacheGeocache941 5339 TIDAL 3CGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>941 5339 TIDAL 3</h1> <b> PID </b> JT0670 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> TOMALES (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 38 09 34. (N) 122 53 40. (W) SCALED <br> <b> NAVD 88 </b> 4.00 (+/-2cm) 13.1 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -32.09 (meters) GEOID03 <br> <p> <b> VERT ORDER </b> SECOND CLASS 0 (See Below) <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the NGVD 29 superseded value. <p>The geoid height was determined by GEOID03. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 686,850. </td><td> 1,790,180. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/92) 3.18 (m) 10.4 (f) COMPUTED 2 0 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH092235(NAD 83) <br>MARKER: DB = BENCH MARK DISK <br>SETTING: 66 = SET IN ROCK OUTCROP <br>SP_SET: ROCK OUTCROP <br>STAMPING: NO 3 1931 <br>STABILITY: A = MOST RELIABLE AND EXPECTED TO HOLD <br>STABILITY: POSITION/ELEVATION WELL <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1931 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1959 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1987 </td><td>MARK NOT FOUND </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1959 AT MARSHALL. AT MARSHALL, ON STATE HIGHWAY 1, 0.2 MILE SOUTH OF THE POST OFFICE, 347 FEET SOUTH OF THE SOUTH SIDE OF MARSHALL TAVERN, 65 FEET WEST OF THE CENTERLINE OF THE HIGHWAY, IN THE TOP OF A LARGE DARK COLORED ROCK (THE LARGEST OF THE ROCKS ALONG THE HIGHWATER LINE IMMEDIATELY SOUTH OF MARSHALL), AND ABOUT 8 FEET ABOVE HIGH WATER. <p> <h2>STATION RECOVERY (1987) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1987 THE DRILL HOLE WAS FOUND WITH THE DISK MISSING. JT0660941 5433 TIDAL 3http://www.geocaching.com/mark/details.asp?PID=JT0660941 5433 TIDAL 3GeocacheGeocache941 5433 TIDAL 3CGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>941 5433 TIDAL 3</h1> <b> PID </b> JT0660 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> TOMALES (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 38 12 32. (N) 122 55 31. (W) SCALED <br> <b> NAVD 88 </b> 2.72 (+/-2cm) 8.9 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -32.03 (meters) GEOID03 <br> <p> <b> VERT ORDER </b> SECOND CLASS 0 (See Below) <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the NGVD 29 superseded value. <p>The geoid height was determined by GEOID03. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 692,410. </td><td> 1,787,620. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/92) 1.89 (m) 6.2 (f) COMPUTED 2 0 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH065289(NAD 83) <br>MARKER: DJ = TIDAL STATION DISK <br>SETTING: 66 = SET IN ROCK OUTCROP <br>SP_SET: ROCKY POINT <br>STAMPING: 3 1921 <br>STABILITY: A = MOST RELIABLE AND EXPECTED TO HOLD <br>STABILITY: POSITION/ELEVATION WELL <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1921 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1951 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1987 </td><td>MARK NOT FOUND </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1951 3.2 MI S FROM TOMALES. 3.2 MILES SOUTH ALONG STATE HIGHWAY 1 FROM THE BANK OF AMERICA AT TOMALES, 0.1 MILE NORTH OF A T JUNCTION OF A GRAVEL ROAD AT HAMLET, ABOUT 40 YARDS SOUTHWEST OF THE WEST END OF AN 18-INCH CORRUGATED METAL PIPE CULVERT D 4.05, ABOUT 27 YARDS WEST OF THE CENTER LINE OF THE HIGHWAY, AT THE FIRST ROCKY POINT EXTENDING INTO TOMALES BAY NORTH OF HAMLET, IN THE TOP OF A BENCH IN THE WEST SLOPE OF THE ROCKY POINT, 40.0 FEET WEST OF TIDAL 4, 24.0 FEET WEST OF THE CENTER OF AN OLD RAILROAD BED, 11.0 FEET NORTHWEST OF THE SOUTH END OF THE POINT, ABOUT 26.0 FEET LOWER THAN THE HIGHWAY, ABOUT 4.0 FEET LOWER THAN THE OLD RAILROAD BED, AND ABOUT 3.0 FEET HIGHER THAN THE BEACH. <p> <h2>STATION RECOVERY (1987) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1987 THERE HAS BEEN ABOUT 3 FEET OF FILL ADDED AT THIS LOCATION. JT0661941 5433 TIDAL 4http://www.geocaching.com/mark/details.asp?PID=JT0661941 5433 TIDAL 4GeocacheGeocache941 5433 TIDAL 4CGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>941 5433 TIDAL 4</h1> <b> PID </b> JT0661 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> TOMALES (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 38 12 32. (N) 122 55 31. (W) SCALED <br> <b> NAVD 88 </b> 4.20 (+/-2cm) 13.8 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -32.03 (meters) GEOID03 <br> <p> <b> VERT ORDER </b> SECOND CLASS 0 (See Below) <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the NGVD 29 superseded value. <p>The geoid height was determined by GEOID03. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 692,410. </td><td> 1,787,620. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/92) 3.37 (m) 11.1 (f) COMPUTED 2 0 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH065289(NAD 83) <br>MARKER: DJ = TIDAL STATION DISK <br>SETTING: 66 = SET IN ROCK OUTCROP <br>SP_SET: ROCKY POINT <br>STAMPING: 4 1945 <br>STABILITY: A = MOST RELIABLE AND EXPECTED TO HOLD <br>STABILITY: POSITION/ELEVATION WELL <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1945 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1951 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1987 </td><td>MARK NOT FOUND </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1951 3.2 MI S FROM TOMALES. 3.2 MILES SOUTH ALONG STATE HIGHWAY 1 FROM THE BANK OF AMERICA AT TOMALES, 0.1 MILE NORTH OF A T JUNCTION OF A GRAVEL ROAD AT HAMLET, ALONG THE NORTHEAST SHORE OF TOMALES BAY, ABOUT 35 YARDS SOUTHWEST OF THE WEST END OF AN 18-INCH CORRUGATED METAL PIPE CULVERT D 4.05, ABOUT 20 YARDS WEST OF THE CENTER LINE OF THE HIGHWAY, AT THE FIRST ROCKY POINT EXTENDING INTO THE BAY NORTH OF HAMLET, SET ON AN ANGLE IN A ROCK CUT OF AN ABANDONED RAILROAD BED, 40.0 FEET EAST OF TIDAL 3, 17 1/2 FEET EAST OF THE CENTER LINE OF THE OLD RAILROAD BED, ABOUT 20.0 FEET LOWER THAN THE HIGHWAY, AND ABOUT 2.0 FEET HIGHER THAN THE OLD RAILROAD BED. <p> <h2>STATION RECOVERY (1987) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1987 THERE HAS BEEN A SLIDE AT THIS LOCATION AND THE MARK SITE IS COVERED WITH DEBRIS. JT0659941 5433 TIDAL 5http://www.geocaching.com/mark/details.asp?PID=JT0659941 5433 TIDAL 5GeocacheGeocache941 5433 TIDAL 5CGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>941 5433 TIDAL 5</h1> <b> PID </b> JT0659 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> TOMALES (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 38 12 38. (N) 122 55 32. (W) SCALED <br> <b> NAVD 88 </b> 3.01 (+/-2cm) 9.9 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -32.03 (meters) GEOID03 <br> <p> <b> VERT ORDER </b> SECOND CLASS 0 (See Below) <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the NGVD 29 superseded value. <p>The geoid height was determined by GEOID03. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 692,600. </td><td> 1,787,600. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/92) 2.18 (m) 7.2 (f) COMPUTED 2 0 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH065291(NAD 83) <br>MARKER: DJ = TIDAL STATION DISK <br>SETTING: 30 = SET IN A LIGHT STRUCTURE <br>SP_SET: CULVERT <br>STAMPING: 5 1945 <br>STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1945 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1951 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1959 </td><td>MARK NOT FOUND </td><td>NGS</td></tr><tr><td>1987 </td><td>MARK NOT FOUND </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1951 3.1 MI S FROM TOMALES. 3.1 MILES SOUTH ALONG STATE HIGHWAY 1 FROM THE BANK OF AMERICA AT TOMALES, 0.2 MILE NORTH OF THE T JUNCTION OF A GRAVEL ROAD AT HAMLET, ALONG THE NORTHEAST SHORE OF TOMALES BAY, ABOUT 60 YARDS NORTH OF THE WEST END OF AN 18-INCH CORRUGATED METAL PIPE CULVERT D 4.05, ABOUT 17 YARDS WEST OF THE CENTER LINE OF THE HIGHWAY, AT THE THIRD ROCKY POINT EXTENDING INTO THE BAY NORTH OF HAMLET, IN THE TOP OF A BENCH ON THE SOUTHWEST SIDE OF THE POINT, 170.5 FEET SOUTH OF A FENCE, 18.0 FEET WEST OF THE CENTER LINE OF AN OLD ABANDONED RAILROAD BED, 4.0 FEET NORTH OF THE SOUTH END OF THE POINT, ABOUT 20.0 FEET LOWER THAN THE HIGHWAY, ABOUT 4.0 FEET HIGHER THAN THE BEACH, AND ABOUT 2.0 FEET LOWER THAN THE BED OF THE OLD RAILROAD. NOTE-- 1959 REPORT A LARGE AMOUNT OF FILL HAS RECENTLY BEEN GRADED OVER THE LOCATION OF THE MARK. <p> <h2>STATION RECOVERY (1959) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1959 MARK NOT FOUND. <p> <h2>STATION RECOVERY (1987) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1987 THERE HAS BEEN ABOUT 3 FEET OF FILL ADDED AT THIS LOCATION. HT1767A 108 RESEThttp://www.geocaching.com/mark/details.asp?PID=HT1767A 108 RESETGeocacheGeocacheA 108 RESETCGSCGS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>A 108 RESET</h1> <b> PID </b> HT1767 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> SAN RAFAEL (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 58 29. (N) 122 31 54. (W) SCALED <br> <b> NAVD 88 </b> 19.842 (meters) 65.10 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.18 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 19.829 (meters) 65.06 (feet) COMP <br> <b> MODELED GRAV</b> 979,998.2 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS II <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991. <p>The geoid height was determined by GEOID03. <p>The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.). <p>The modeled gravity was interpolated from observed gravity values. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 665,610. </td><td> 1,821,520. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (12/02/92) 19.025 (m) 62.42 (f) ADJUSTED 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH411031(NAD 83) <br>MARKER: DB = BENCH MARK DISK <br>SETTING: 40 = SET IN A LARGE STRUCTURE WITH DEEP FOUNDATIONS <br>SP_SET: FOUNDATION WALL <br>STAMPING: A 108 RESET 1966 <br>MARK LOGO: CGS <br>STABILITY: A = MOST RELIABLE AND EXPECTED TO HOLD <br>STABILITY: POSITION/ELEVATION WELL <br>SATELLITE: THE SITE LOCATION WAS REPORTED AS NOT SUITABLE FOR <br>SATELLITE: SATELLITE OBSERVATIONS - September 29, 1988 <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1966 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1975 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1987 </td><td>GOOD </td><td>NGS</td></tr><tr><td>19880929</td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY COAST AND GEODETIC SURVEY 1966 AT SAN RAFAEL. AT SAN RAFAEL, AT THE CITY HALL, ON FIFTH AVENUE BETWEEN C AND E STREETS, SET VERTICALLY IN THE EAST CONCRETE WALL (INTEGRAL WITH THE CONCRETE PIER, RESTING ON BEDROCK, HELPING SUPPORT THE BUILDING), 112 FEET EAST OF THE FLAGPOLE IN FRONT OF THE BUILDING, 74 FEET NORTH OF THE CENTERLINE OF FIFTH AVENUE, 0.9 FOOT NORTH OF THE SOUTHEAST CORNER OF THE WALL, 4.3 FEET ABOVE THE SIDEWALK, AND ABOUT 1 FOOT HIGHER THAN THE AVENUE. <p> <h2>STATION RECOVERY (1975) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1975 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1987) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1987 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1988) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 RECOVERED IN GOOD CONDITION. HT3523A 1394http://www.geocaching.com/mark/details.asp?PID=HT3523A 1394GeocacheGeocacheA 1394NGSNGS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>A 1394</h1> <b> PID </b> HT3523 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> SAN RAFAEL (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 58 14. (N) 122 31 19. (W) SCALED <br> <b> NAVD 88 </b> 4.702 (meters) 15.43 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.19 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 4.699 (meters) 15.42 (feet) COMP <br> <b> MODELED GRAV</b> 979,997.4 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS II <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991. <p>The geoid height was determined by GEOID03. <p>The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.). <p>The modeled gravity was interpolated from observed gravity values. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 665,120. </td><td> 1,822,360. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (10/21/93) 3.886 (m) 12.75 (f) ADJUSTED 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH419026(NAD 83) <br>MARKER: DV = VERTICAL CONTROL DISK <br>SETTING: 38 = SET IN THE ABUTMENT OR PIER OF A LARGE BRIDGE <br>SP_SET: PIER <br>STAMPING: A 1394 1987 <br>MARK LOGO: NGS <br>STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL <br>SATELLITE: THE SITE LOCATION WAS REPORTED AS NOT SUITABLE FOR <br>SATELLITE: SATELLITE OBSERVATIONS - September 29, 1988 <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1987 </td><td>MONUMENTED </td><td>NGS</td></tr><tr><td>19880929</td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1987 IN SAN RAFAEL. IN SAN RAFAEL, AT THE INTERSECTION OF 2ND AND HETHERTON STREETS, SET VERTICALLY IN THE WEST FACE OF THE MOST NORTHWESTERLY COLUMN OF THE SOUTHBOUND U.S HIGHWAY 101 HIGHWAY OVERPASS OF THE STREET, 26.6 M (87.3 FT) EAST OF THE CENTER OF HETHERTON STREET, 7.3 M (24.0 FT) NORTH OF THE CENTER OF THE NORTH LANES OF 2ND STREET, AND 3.6 M (11.8 FT) NORTHEAST OF BENCH MARK Y 107 RESET 1975. THE MARK IS 1.8 M ABOVE 2ND STREET. <p> <h2>STATION RECOVERY (1988) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 RECOVERED IN GOOD CONDITION. JT9490A 1395http://www.geocaching.com/mark/details.asp?PID=JT9490A 1395GeocacheGeocacheA 1395NGSNGS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>A 1395</h1> <b> PID </b> JT9490 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> INVERNESS (1976) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 38 03 55. (N) 122 48 18. (W) SCALED <br> <b> NAVD 88 </b> 5.696 (meters) 18.69 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.17 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 5.692 (meters) 18.67 (feet) COMP <br> <b> MODELED GRAV</b> 980,016.4 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS II <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991. <p>The geoid height was determined by GEOID03. <p>The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.). <p>The modeled gravity was interpolated from observed gravity values. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 676,210. </td><td> 1,797,760. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (12/02/92) 4.884 (m) 16.02 (f) ADJUSTED 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH171130(NAD 83) <br>MARKER: I = METAL ROD <br>SETTING: 49 = STAINLESS STEEL ROD W/O SLEEVE (10 FT.+) <br>SP_SET: STAINLESS STEEL ROD <br>STAMPING: A 1395 1987 <br>MARK LOGO: NGS <br>PROJECTION: FLUSH <br>STABILITY: A = MOST RELIABLE AND EXPECTED TO HOLD <br>STABILITY: POSITION/ELEVATION WELL <br>ROD/PIPE-DEPTH: 23.2 meters <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1987 </td><td>MONUMENTED </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1987 0.4 KM (0.25 MI) SE FROM POINT REYES STATION. 0.4 KM (0.25 MI) SOUTHEASTERLY ALONG STATE HIGHWAY 1 FROM THE POST OFFICE IN POINT REYES STATION, 25.9 M (85.0 FT) NORTH OF THE CENTER OF A DRIVEWAY LEADING EAST TO THE VETERINARY HOSPITAL, 8.6 M (28.2 FT) EAST OF THE CENTERLINE OF THE HIGHWAY, 3.5 M (11.5 FT) NORTHEAST OF THE SOUTH END OF A GUARDRAIL, AND 0.7 M (2.3 FT) NORTH OF A FENCE CORNER. NOTE--ACCESS TO DATUM POINT IS HAD THROUGH A 5-INCH LOGO CAP. THE MARK IS 0.3 METERS W FROM A WITNESS POST AND FENCE THE MARK IS ABOVE LEVEL WITH THE HIGHWAY. JT9480A 1396http://www.geocaching.com/mark/details.asp?PID=JT9480A 1396GeocacheGeocacheA 1396NGSNGS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>A 1396</h1> <b> PID </b> JT9480 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> TOMALES (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 38 10 14. (N) 122 53 51. (W) SCALED <br> <b> NAVD 88 </b> 5.540 (meters) 18.18 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.06 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 5.537 (meters) 18.17 (feet) COMP <br> <b> MODELED GRAV</b> 980,011.3 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS II <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991. <p>The geoid height was determined by GEOID03. <p>The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.). <p>The modeled gravity was interpolated from observed gravity values. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 688,090. </td><td> 1,789,940. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (12/02/92) 4.714 (m) 15.47 (f) ADJUSTED 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH089247(NAD 83) <br>MARKER: I = METAL ROD <br>SETTING: 49 = STAINLESS STEEL ROD W/O SLEEVE (10 FT.+) <br>SP_SET: STAINLESS STEEL ROD <br>STAMPING: A 1396 1987 <br>MARK LOGO: NGS <br>PROJECTION: FLUSH <br>STABILITY: A = MOST RELIABLE AND EXPECTED TO HOLD <br>STABILITY: POSITION/ELEVATION WELL <br>ROD/PIPE-DEPTH: 10.9 meters <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1987 </td><td>MONUMENTED </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1987 10.6 KM (6.60 MI) SOUTH FROM TOMALES. 10.6 KM (6.60 MI) SOUTHEASTERLY ALONG STATE HIGHWAY 1 FROM THE JUNCTION OF FIRST STREET IN TOMALES, 34.3 M (112.5 FT) NORTHWEST OF THE CENTER OF A GATE AND FIELD ENTRANCE, 29.2 M (95.8 FT) SOUTHEAST OF THE SOUTHEAST CORNER OF CONCRETE CULVERT NUMBER 39.06, 16.8 M (55.1 FT) EAST-SOUTHEAST OF UTILITY POLE NUMBER 123, AND 7.6 M (24.9 FT) NORTHEAST OF THE CENTERLINE OF THE HIGHWAY. NOTE--ACCESS TO DATUM POINT IS HAD THROUGH A 5-INCH LOGO CAP. THE MARK IS 0.3 METERS SW FROM A WITNESS POST AND FENCE THE MARK IS ABOVE LEVEL WITH THE HIGHWAY. HT3528A 1444http://www.geocaching.com/mark/details.asp?PID=HT3528A 1444GeocacheGeocacheA 1444NGSNGS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>A 1444</h1> <b> PID </b> HT3528 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> SAN RAFAEL (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 56 41. (N) 122 32 34. (W) SCALED <br> <b> NAVD 88 </b> 3.623 (meters) 11.89 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.23 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 3.621 (meters) 11.88 (feet) COMP <br> <b> MODELED GRAV</b> 979,996.2 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS II <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991. <p>The geoid height was determined by GEOID03. <p>The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.). <p>The modeled gravity was interpolated from observed gravity values. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 662,300. </td><td> 1,820,470. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (10/21/93) 2.804 (m) 9.20 (f) ADJUSTED 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEG401997(NAD 83) <br>MARKER: I = METAL ROD <br>SETTING: 49 = STAINLESS STEEL ROD W/O SLEEVE (10 FT.+) <br>SP_SET: STAINLESS STEEL ROD <br>STAMPING: A 1444 1988 <br>MARK LOGO: NGS <br>PROJECTION: FLUSH <br>MAGNETIC: I = MARKER IS A STEEL ROD <br>STABILITY: A = MOST RELIABLE AND EXPECTED TO HOLD <br>STABILITY: POSITION/ELEVATION WELL <br>SATELLITE: THE SITE LOCATION WAS REPORTED AS NOT SUITABLE FOR <br>SATELLITE: SATELLITE OBSERVATIONS - 1988 <br>ROD/PIPE-DEPTH: 9.0 meters <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1988 </td><td>MONUMENTED </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1988 IN DARTMOUTH, AT THE INTERSECTION OF MAGNOLIA AVENUE AND DARTMOUTH DRIVE, 10.1 M (33.1 FT) NORTHEAST OF THE CENTERLINE OF THE NORTHBOUND LANES OF THE AVENUE, 9.6 M (31.5 FT) SOUTHEAST OF THE CENTER OF THE EASTBOUND LANES OF THE DRIVE, 8.9 M (29.2 FT) SOUTH-SOUTHWEST OF UNDERGROUND CABLE JUNCTION BOX NUMBER 99, 4.1 M (13.5 FT) EAST OF THE CENTER OF A STORM DRAIN, AND 0.6 M (2.0 FT) NORTHEAST OF THE NORTHEAST EDGE OF A CONCRETE SIDEWALK. NOTE--ACCESS TO DATUM POINT IS HAD THROUGH A 5-INCH LOGO CAP. HT1828A 210 RESEThttp://www.geocaching.com/mark/details.asp?PID=HT1828A 210 RESETGeocacheGeocacheA 210 RESETNGSNGS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>A 210 RESET</h1> <b> PID </b> HT1828 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> SAN RAFAEL (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 59 15. (N) 122 35 25. (W) SCALED <br> <b> NAVD 88 </b> 38.169 (meters) 125.23 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.12 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 38.145 (meters) 125.15 (feet) COMP <br> <b> MODELED GRAV</b> 979,998.2 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS II <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991. <p>The geoid height was determined by GEOID03. <p>The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.). <p>The modeled gravity was interpolated from observed gravity values. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 667,140. </td><td> 1,816,400. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (12/02/92) 37.354 (m) 122.55 (f) ADJUSTED 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH359045(NAD 83) <br>MARKER: DB = BENCH MARK DISK <br>SETTING: 34 = SET IN THE FOOTINGS OF SMALL/MEDIUM STRUCTURES <br>SP_SET: FOUNDATION WALL <br>STAMPING: A 210 RESET 1971 <br>MARK LOGO: NGS <br>STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO <br>STABILITY: SURFACE MOTION <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1971 </td><td>MONUMENTED </td><td>NGS</td></tr><tr><td>1987 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1971 AT FAIRFAX. AT FAIRFAX, 0.05 MILE WEST OF THE POST OFFICE, SET VERTICALLY IN THE SOUTHWEST FACE OF THE SOUTHWEST CONCRETE BLOCK WALL OF A STANDARD SERVICE STATION, NORTHEAST OF AND ACROSS BROADWAY FROM THE BANK OF AMERICA BUILDING, 72 FEET NORTHWEST OF THE CENTER OF THE INTERSECTION OF BANK STREET AND BROADWAY, 16 FEET NORTHEAST OF THE CENTERLINE OF BROADWAY, 16 FEET NORTHWEST OF THE SOUTHEAST END OF THE WALL AND ABOUT 2 FEET HIGHER THAN THE STREET. <p> <h2>STATION RECOVERY (1987) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1987 RECOVERED IN GOOD CONDITION. A NEW TO REACH FOLLOWS. 3.0 KM (1.85 MI) NORTHWESTERLY ALONG SIR FRANCIS DRAKE BOULEVARD FROM THE JUNCTION OF RED HILL AVENUE IN SAN ANSELMO. ADD--IN THE SMALL COMMUNITY OF FAIRFAX, AT 2001 SIR FRANCIS DRAKE BOULEVARD. HT1838A 243http://www.geocaching.com/mark/details.asp?PID=HT1838A 243GeocacheGeocacheA 243CASLCCASLC Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <b> TIDAL BM </b> This is a Tidal Bench Mark. <br> <h1>A 243</h1> <b> PID </b> HT1838 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 59 44. (N) 122 58 39. (W) SCALED <br> <b> NAVD 88 </b> 3.524 (meters) 11.56 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.91 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 3.522 (meters) 11.56 (feet) COMP <br> <b> MODELED GRAV</b> 979,997.3 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS II <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991. <p>This Tidal Bench Mark is designated as VM 1731 by the Center for Operational Oceanographic Products and Services. <p>The geoid height was determined by GEOID03. <p>The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.). <p>The modeled gravity was interpolated from observed gravity values. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 668,860. </td><td> 1,782,420. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (12/02/92) 2.727 (m) 8.95 (f) ADJUSTED 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH019053(NAD 83) <br>MARKER: DD = SURVEY DISK <br>SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT <br>SP_SET: CONCRETE POST <br>STAMPING: BM A 243 1949 <br>MARK LOGO: CASLC <br>PROJECTION: RECESSED 30 CENTIMETERS <br>STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO <br>STABILITY: SURFACE MOTION <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1949 </td><td>MONUMENTED </td><td>CASLC</td></tr><tr><td>1951 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1988 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1951 AT POINT REYES C G STATION. ABOUT 0.2 MILES NORTHWEST ALONG THE BEACH FROM THE POINT REYES U.S. COAST GUARD STATION, AT THE SOUTH END OF THE CONSOLIDATED FISHERIES PIER, ABOUT IN LINE WITH THE EAST EDGE OF THE PIER, 13.6 FEET NORTH OF THE NORTHWEST CORNER OF A SMALL FRAME HOUSE, 7.0 FEET SOUTH OF THE SOUTHEAST CORNER OF THE WOODEN FLOORING OF THE PIER, 10 1/2 FEET EAST OF THE PROLONGATION OF THE CENTER LINE OF THE PIER, AND SET IN THE TOP OF A CONCRETE POST 0.3 FEET BELOW THE GROUND. <p> <h2>STATION RECOVERY (1988) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 RECOVERED IN GOOD CONDITION. A NEW DESCRIPTION FOLLOWS. 23.3 KM (14.50 MI) SOUTHWESTERLY ALONG SIR FRANCIS DRAKE HIGHWAY FROM THE POST OFFICE IN INVERNESS, THENCE 1.5 KM (0.95 MI) EASTERLY ALONG CHIMNEY ROCK ROAD, THENCE 0.3 KM (0.20 MI) NORTHWEST AND EAST ALONG A PAVED ROAD, 37.2 M (122.0 FT) NORTHWEST OF BENCH MARK B 243 CASLC, 12.2 M (40.0 FT) WEST-NORTHWEST OF THE EXTENDED CENTER OF A PIER, AND 6.0 M (19.7 FT) NORTHWEST OF A UTILITY POLE. THE MARK IS 0.6 METERS S FROM A WITNESS POST JT0954A 3 LL 752http://www.geocaching.com/mark/details.asp?PID=JT0954A 3 LL 752GeocacheGeocacheA 3 LL 752DODUSE Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>A 3 LL 752</h1> <b> PID </b> JT0954 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> INVERNESS (1976) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 38 01 30. (N) 122 46 30. (W) SCALED <br> <b> NAVD 88 </b> 57.183 (meters) 187.61 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.24 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 57.147 (meters) 187.49 (feet) COMP <br> <b> MODELED GRAV</b> 980,002.6 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS II <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991. <p>The geoid height was determined by GEOID03. <p>The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.). <p>The modeled gravity was interpolated from observed gravity values. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 671,680. </td><td> 1,800,280. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (12/02/92) 56.373 (m) 184.95 (f) ADJUSTED 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH197086(NAD 83) <br>MARKER: DD = SURVEY DISK <br>SETTING: 32 = SET IN A RETAINING WALL OR CONCRETE LEDGE <br>SP_SET: HEADWALL <br>STAMPING: A 1951 3LL 752 BENCH MSL 3RD 0 <br>MARK LOGO: USE <br>STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO <br>STABILITY: SURFACE MOTION <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>UNK </td><td>MONUMENTED </td><td>DOD</td></tr><tr><td>1951 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1959 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1987 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1951 1.3 MI SE FROM OLEMA. 1.3 MILES SOUTHEAST OF THE POST OFFICE AT OLEMA, ABOUT 0.15 MILES SOUTHEAST OF A LARGE RANCH HOUSE AND DAIRY BARN, AT THE SOUTH END OF A WIDE PARKING AREA, AT AN 18-INCH CORRUGATED METAL PIPE CULVERT NO. B. 12.76, IN THE TOP OF THE EAST L-SHAPED CONCRETE HEADWALL, AND SET 14 FEET EAST OF AND ABOUT ONE FOOT HIGHER THAN THE HIGHWAY. <p> <h2>STATION RECOVERY (1959) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1959 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1987) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1987 RECOVERED IN GOOD CONDITION. A NEW TO REACH FOLLOWS. 2.2 KM (1.35 MI) SOUTHEASTERLY ALONG STATE HIGHWAY 1 FROM THE JUNCTION OF SIR FRANCIS DRAKE BOULEVARD IN OLEMA. NOTE--THE CULVERT IS NOW NUMBERED 25.11. JT0802A 466 RESEThttp://www.geocaching.com/mark/details.asp?PID=JT0802A 466 RESETGeocacheGeocacheA 466 RESETCGSCGS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>A 466 RESET</h1> <b> PID </b> JT0802 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> NOVATO (1980) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 38 04 13. (N) 122 32 19. (W) SCALED <br> <b> NAVD 88 </b> 6.881 (meters) 22.58 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -31.99 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 6.877 (meters) 22.56 (feet) COMP <br> <b> MODELED GRAV</b> 980,007.1 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS II <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991. <p>The geoid height was determined by GEOID03. <p>The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.). <p>The modeled gravity was interpolated from observed gravity values. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 676,220. </td><td> 1,821,140. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p>No superseded survey control is available for this station. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH404137(NAD 83) <br>MARKER: DB = BENCH MARK DISK <br>SETTING: 30 = SET IN A LIGHT STRUCTURE <br>SP_SET: SCALES FOUNDATION <br>STAMPING: A 466 RESET 1961 <br>MARK LOGO: CGS <br>STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1961 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1981 </td><td>GOOD</td><td>CGS</td></tr><tr><td>1984 </td><td>MARK NOT FOUND </td><td>USPSQD</td></tr><tr><td>1987 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY COAST AND GEODETIC SURVEY 1961 AT IGNACIO. AT IGNACIO, 50 YARDS NORTHEAST OF THE JUNCTION OF U.S. HIGHWAY 101 AND ENTRADA DRIVE, AT A NORTHWESTERN PACIFIC RAILROAD WEIGH SCALE, 125 FEET NORTHEAST OF THE NORTHEAST EDGE OF THE HIGHWAY PAVEMENT, 66 FEET NORTHWEST OF THE EXTENDED CENTERLINE OF ENTRADA DRIVE, 4.8 FEET NORTHEAST OF THE NORTHEAST RAIL OF THE WEIGH SCALE SPUR TRACK, 1.4 FEET SOUTHWEST OF THE WEST CORNER OF A SMALL BUILDING HOUSING THE WEIGH SCALE, IN THE TOP OF THE CONCRETE STRUCTURE ENCLOSING THE WEIGHING APPARATUS, 1/2 FOOT LOWER THAN THE TRACK, AND LEVEL WITH THE GROUND. <p> <h2>STATION RECOVERY (1981) </h2> <p>RECOVERED 1981 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1984) </h2> <p>RECOVERY NOTE BY US POWER SQUADRON 1984 MARK NOT FOUND. <p> <h2>STATION RECOVERY (1987) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1987 RECOVERED IN GOOD CONDITION. A NEW DESCRIPTION FOLLOWS. 8.9 KM (5.55 MI) NORTHERLY ALONG U.S. HIGHWAY 101 FROM THE JUNCTION OF SAN PEDRO ROAD IN SAN RAFAEL, IN TOP OF A CONCRETE FOUNDATION OF AN ABANDONED RAILROAD SCALE, 39.4 M (129.3 FT) NORTHEAST OF THE CENTER OF THE NORTHBOUND LANES OF THE HIGHWAY, 23.5 M (77.1 FT) NORTHEAST OF THE SOUTHEAST END OF A RETAINING WALL BETWEEN THE HIGHWAY AND THE NORTHWESTERN PACIFIC RAILROAD, 6.6 M (21.7 FT) NORTHEAST OF THE NEAR RAIL, 5.1 M (16.7 FT) SOUTHWEST OF THE NORTH CORNER OF THE FOUNDATION, AND 1.1 M (3.6 FT) SOUTHWEST OF A FENCE. JT0950A 476http://www.geocaching.com/mark/details.asp?PID=JT0950A 476GeocacheGeocacheA 476CGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>A 476</h1> <b> PID </b> JT0950 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> TOMALES (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 38 14 54. (N) 122 54 51. (W) SCALED <br> <b> NAVD 88 </b> 37.07 (+/-2cm) 121.6 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -31.90 (meters) GEOID03 <br> <p> <b> VERT ORDER </b> SECOND CLASS 0 (See Below) <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the NGVD 29 superseded value. <p>The geoid height was determined by GEOID03. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 696,760. </td><td> 1,788,710. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/92) 36.231 (m) 118.87 (f) ADJ UNCH 2 0 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH075333(NAD 83) <br>MARKER: DB = BENCH MARK DISK <br>SETTING: 80 = SET IN A BOULDER <br>SP_SET: BOULDER <br>STAMPING: A 476 1951 <br>STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO <br>STABILITY: SURFACE MOTION <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1951 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1959 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY COAST AND GEODETIC SURVEY 1951 0.5 MI W FROM TOMALES. ABOUT 0.5 MILES WEST ALONG DILLON BEACH ROAD FROM THE BANK OF AMERICAN AT TOMALES, AT THE SOUTHWEST CORNER OF A CATHOLIC CEMETARY, AT THE WEST END OF A CEMENT STONE MASONRY FENCE IN FRONT OF THE CEMETARY, SET VERTICALLY IN THE SOUTH FACE OF A LARGE ROCK AND CONCRETE PILLAR, 78.0 FEET WEST OF THE CENTER LINE OF THE ENTRANCE TO THE CEMETARY, 33.0 FEET NORTHEAST OF THE CENTER LINE OF DILLON BEACH ROAD, 2.6 FEET EAST OF THE SOUTHWEST CORNER OF THE ROCK PILLAR, 1.2 FEET ABOVE THE GROUND, AND SET ABOUT 5 FEET HIGHER THAN THE ROAD. <p> <h2>STATION RECOVERY (1959) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1959 RECOVERED IN GOOD CONDITION. JT0955A 480http://www.geocaching.com/mark/details.asp?PID=JT0955A 480GeocacheGeocacheA 480CGSCGS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>A 480</h1> <b> PID </b> JT0955 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> INVERNESS (1976) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 38 02 05. (N) 122 46 57. (W) SCALED <br> <b> NAVD 88 </b> 22.844 (meters) 74.95 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.23 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 22.830 (meters) 74.90 (feet) COMP <br> <b> MODELED GRAV</b> 980,008.3 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS II <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991. <p>The geoid height was determined by GEOID03. <p>The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.). <p>The modeled gravity was interpolated from observed gravity values. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 672,770. </td><td> 1,799,650. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (12/02/92) 22.034 (m) 72.29 (f) ADJUSTED 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH190096(NAD 83) <br>MARKER: DB = BENCH MARK DISK <br>SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT <br>SP_SET: CONCRETE POST <br>STAMPING: A 480 1951 <br>MARK LOGO: CGS <br>PROJECTION: PROJECTING 2 CENTIMETERS <br>STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO <br>STABILITY: SURFACE MOTION <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1951 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1959 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1984 </td><td>GOOD </td><td>USPSQD</td></tr><tr><td>1987 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY COAST AND GEODETIC SURVEY 1951 0.5 MI SE FROM OLEMA. 0.5 MILES SOUTHEAST ALONG STATE HIGHWAY 1 FROM THE POST OFFICE AT OLEMA, 92.8 FEET NORTHWEST OF THE NORTHEAST END OF A 30-INCH CORRUGATED METAL PIPE CULVERT NO. B-13.60, 72 1/2 FEET EAST OF AND ACROSS THE HIGHWAY FROM TELEGRAPH POLE NO. 858, 32 FEET NORTHEAST OF THE CENTER LINE OF THE HIGHWAY, 15 1/2 FEET NORTHWEST OF THE CENTER OF A WOODEN GATE, 1.8 FEET NORTHEAST OF A FENCE, 2.5 FEET NORTHEAST OF A WITNESS POST, AND SET IN THE TOP OF A CONCRETE POST PROJECTING 0.3 FEET AND ABOUT 1.0 FEET LOWER THAN THE HIGHWAY. <p> <h2>STATION RECOVERY (1959) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1959 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1984) </h2> <p>RECOVERY NOTE BY US POWER SQUADRON 1984 NOTE: ACROSS THE HIGHWAY FROM AND BETWEEN POLES 857 AND 858, AT MARIN MILEPOST 1- MRN-2600. NO GATE IN THE FENCE. WITNESS POST UNPAINTED AND LEANING OT THE SOUTHWEST <p> <h2>STATION RECOVERY (1987) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1987 RECOVERED IN GOOD CONDITION. A NEW TO REACH FOLLOWS. 0.8 KM (0.50 MI) SOUTHEASTERLY ALONG STATE HIGHWAY 1 FROM THE JUNCTION OF SIR FRANCIS DRAKE BOULEVARD IN OLEMA. NOTE--THE TELEGRAPH POLE NO LONGER EXIST, AND THE CULVERT IS NOW NUMBERED 25.96. THE MARK IS 0.6 METERS NE FROM A WITNESS POST THE MARK IS 0.3 M BELOW THE HIGHWAY. HT1788A 481 RESET 1962http://www.geocaching.com/mark/details.asp?PID=HT1788A 481 RESET 1962GeocacheGeocacheA 481 RESET 1962CGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>A 481 RESET 1962</h1> <b> PID </b> HT1788 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> SAN RAFAEL (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 54 07. (N) 122 30 43. (W) SCALED <br> <b> NAVD 88 </b> 25.42 (+/-2cm) 83.4 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -32.34 (meters) GEOID03 <br> <p> <b> VERT ORDER </b> THIRD (See Below) <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the NGVD 29 superseded value. <p>The geoid height was determined by GEOID03. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 657,490. </td><td> 1,823,080. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/??) 24.61 (m) 80.7 (f) RESET 3 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEG429950(NAD 83) <br>MARKER: DB = BENCH MARK DISK <br>SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT <br>SP_SET: SET IN TOP OF CONCRETE MONUMENT <br>STAMPING: A 481 RESET 1962 <br>STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO <br>STABILITY: SURFACE MOTION <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1962 </td><td>MONUMENTED </td><td>CGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY COAST AND GEODETIC SURVEY 1962 4 MI NW FROM TIBURON. 4.0 MILES NORTHWEST ALONG STATE HIGHWAY 52 FROM THE POST OFFICE AT TIBURON, 0.15 MILE EAST OF U.S. HIGHWAY 101, AT THE SOUTH CORNER OF AN AREA OCCUPIED BY A MOHAWK SERVICE STATION, 60 FEET NORTH-NORTHEAST OF THE CENTERLINE OF THE HIGHWAY, 28 FEET WEST-NORTHWEST OF THE CENTERLINE OF NORTH KNOLL ROAD, 7.0 FEET WEST-NORTHWEST OF THE CURBING ON THE WEST SIDE OF THE ROAD, 5.0 FEET NORTH-NORTHEAST OF THE CURBING ON THE NORTH SIDE OF THE HIGHWAY, 3.6 FEET SOUTHWEST OF POWERLINE POLE, AND SET IN THE TOP OF A CONCRETE POST FLUSH WITH THE ASPHALT SURFACE. HT1090A 551http://www.geocaching.com/mark/details.asp?PID=HT1090A 551GeocacheGeocacheA 551CGSCGS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>A 551</h1> <b> PID </b> HT1090 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 49 31. (N) 122 28 45. (W) SCALED <br> <b> NAVD 88 </b> 6.118 (meters) 20.07 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.50 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 6.114 (meters) 20.06 (feet) COMP <br> <b> MODELED GRAV</b> 979,988.5 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS II <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991. <p>The geoid height was determined by GEOID03. <p>The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.). <p>The modeled gravity was interpolated from observed gravity values. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 648,920. </td><td> 1,825,780. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (10/21/93) 5.285 (m) 17.34 (f) ADJUSTED 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEG458865(NAD 83) <br>MARKER: DB = BENCH MARK DISK <br>SETTING: 35 = SET IN A MAT FOUNDATION OR CONCRETE SLAB OTHER THAN <br>WITH SETTING: PAVEMENT <br>SP_SET: TOWER FOUNDATION <br>STAMPING: A 551 1956 <br>MARK LOGO: CGS <br>STABILITY: A = MOST RELIABLE AND EXPECTED TO HOLD <br>STABILITY: POSITION/ELEVATION WELL <br>SATELLITE: THE SITE LOCATION WAS REPORTED AS NOT SUITABLE FOR <br>SATELLITE: SATELLITE OBSERVATIONS - September 09, 1988 <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1956 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1964 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1986 </td><td>GOOD </td><td>USPSQD</td></tr><tr><td>19880909</td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1964 AT FORT BAKER. AT FORT BAKER, 0.9 MILE SOUTH ALONG A DIRT ROAD LEADING TO LIME POINT FROM THE GUARD HOUSE, SET VERTICALLY IN THE NORTH FACE OF THE CONCRETE FOUNDATION OF THE NORTH TOWER OF THE GOLDEN GATE BRIDGE, 15.5 FEET WEST OF THE NORTHEAST CORNER OF THE FOUNDATION, AND 3.5 FEET ABOVE THE GROUND. <p> <h2>STATION RECOVERY (1986) </h2> <p>RECOVERY NOTE BY US POWER SQUADRON 1986 (AJM) RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1988) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 RECOVERED IN GOOD CONDITION. JT0829A 552http://www.geocaching.com/mark/details.asp?PID=JT0829A 552GeocacheGeocacheA 552CGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>A 552</h1> <b> PID </b> JT0829 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> NOVATO (1980) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 38 00 22. (N) 122 31 07. (W) SCALED <br> <b> NAVD 88 </b> 9.66 (+/-2cm) 31.7 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -32.12 (meters) GEOID03 <br> <p> <b> VERT ORDER </b> FIRST CLASS II (See Below) <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the NGVD 29 superseded value. <p>The geoid height was determined by GEOID03. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 669,060. </td><td> 1,822,740. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/92) 8.85 (m) 29.0 (f) COMPUTED 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH422066(NAD 83) <br>MARKER: DB = BENCH MARK DISK <br>SETTING: 30 = SET IN A LIGHT STRUCTURE <br>SP_SET: CULVERT <br>STAMPING: A 552 1956 <br>STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1956 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1964 </td><td>MARK NOT FOUND </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY COAST AND GEODETIC SURVEY 1956 0.5 MI SE FROM SANTA VENETIA. 0.5 MILE SOUTHEAST ALONG NORTH SAN PEDRO ROAD FROM THE SANTA VENETIA SCHOOL AT SANTA VENETIA, IN R 6 W, T 2 N, AT THE T JUNCTION OF MEDOW DRIVE LEADING NORTHWEST, AT A 48-INCH CORRUGATED METAL PIPE CULVERT UNDER THE DRIVE, IN THE TOP OF THE SOUTHEAST END OF THE NORTHEAST CONCRETE HEAD WALL, 70 FEET NORTHWEST OF THE CENTER LINE OF THE ROAD, 13 1/2 FEET NORTHEAST OF THE CENTER LINE OF THE DRIVE, AND ABOUT 1 1/2 FEET LOWER THAN THE DRIVE. <p> <h2>STATION RECOVERY (1964) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1964 MARK NOT FOUND. HT1064A 557http://www.geocaching.com/mark/details.asp?PID=HT1064A 557GeocacheGeocacheA 557CGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <b> TIDAL BM </b> This is a Tidal Bench Mark. <br> <h1>A 557</h1> <b> PID </b> HT1064 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> SAN QUENTIN (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 53 27. (N) 122 26 48. (W) SCALED <br> <b> NAVD 88 </b> 3.33 (+/-2cm) 10.9 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -32.36 (meters) GEOID03 <br> <p> <b> VERT ORDER </b> FIRST CLASS II (See Below) <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the NGVD 29 superseded value. <p>This Tidal Bench Mark is designated as VM 15719 by the Center for Operational Oceanographic Products and Services. <p>The geoid height was determined by GEOID03. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 656,140. </td><td> 1,828,790. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/92) 2.522 (m) 8.27 (f) ADJ UNCH 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEG486938(NAD 83) <br>MARKER: DB = BENCH MARK DISK <br>SETTING: 30 = SET IN A LIGHT STRUCTURE <br>SP_SET: CONCRETE SEAWALL <br>STAMPING: A 557 1956 <br>STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1956 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1964 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY COAST AND GEODETIC SURVEY 1956 AT TIBURON USN NET DEPOT. AT TIBURON NAVAL NET DEPOT, IN THE TOP OF A CONCRETE SEA WALL, 208 1/2 FEET SOUTHEAST OF THE SOUTHEAST EDGE OF AN APPROACH TO A WOODEN WHARF, 141 FEET NORTHWEST OF A POINT IN LINE WITH THE SOUTHEAST END OF THE WHARF, 5.1 FEET NORTHEAST OF THE NORTHEAST EDGE OF A 2.2- BY 2.2-FOOT STEEL MANHOLE COVER, 0.8 FOOT SOUTHWEST OF THE NORTHEAST EDGE OF THE SEA WALL, AND ABOUT LEVEL WITH THE GROUND. <p> <h2>STATION RECOVERY (1964) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1964 RECOVERED IN GOOD CONDITION. JT0671A 632http://www.geocaching.com/mark/details.asp?PID=JT0671A 632GeocacheGeocacheA 632CGSCGS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>A 632</h1> <b> PID </b> JT0671 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> TOMALES (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 38 08 54. (N) 122 52 58. (W) SCALED <br> <b> NAVD 88 </b> 3.695 (meters) 12.12 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.09 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 3.693 (meters) 12.12 (feet) COMP <br> <b> MODELED GRAV</b> 980,016.9 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS II <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991. <p>The geoid height was determined by GEOID03. <p>The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.). <p>The modeled gravity was interpolated from observed gravity values. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 685,600. </td><td> 1,791,170. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (12/02/92) 2.872 (m) 9.42 (f) ADJUSTED 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH102222(NAD 83) <br>MARKER: DB = BENCH MARK DISK <br>SETTING: 32 = SET IN A RETAINING WALL OR CONCRETE LEDGE <br>SP_SET: HEADWALL <br>STAMPING: A 632 1942 <br>MARK LOGO: CGS <br>STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO <br>STABILITY: SURFACE MOTION <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1942 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1959 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1975 </td><td>MARK NOT FOUND </td><td>USGS</td></tr><tr><td>19750207</td><td>MARK NOT FOUND </td><td>USPSQD</td></tr><tr><td>1984 </td><td>GOOD </td><td>USPSQD</td></tr><tr><td>1987 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1959 1.1 MI SE FROM MARSHALL. 1.1 MILES SOUTHEAST ALONG STATE HIGHWAY 1 FROM THE POST OFFICE AT MARSHALL, 70 FEET SOUTHEAST OF THE JUNCTION OF THE OLD AND NEW HIGHWAYS, 22.5 FEET EAST OF THE CENTERLINE OF STATE HIGHWAY 1, AT A CABIN NAMED ANCHOR INN, 7.7 FEET SOUTHWEST OF THE SOUTHWEST CORNER OF THE CABIN, AT CULVERT C-10.75, IN THE TOP OF THE NORTH END OF THE EAST HEADWALL, AND ABOUT 2 FEET LOWER THAN THE HIGHWAY. <p> <h2>STATION RECOVERY (1975) </h2> <p>RECOVERY NOTE BY US GEOLOGICAL SURVEY 1975 MARK NOT FOUND. <p> <h2>STATION RECOVERY (1975) </h2> <p>RECOVERY NOTE BY US POWER SQUADRON 1975 (FMK) MARK NOT FOUND. <p> <h2>STATION RECOVERY (1984) </h2> <p>RECOVERY NOTE BY US POWER SQUADRON 1984 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1987) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1987 RECOVERED IN GOOD CONDITION. A NEW DESCRIPTION FOLLOWS. 13.5 KM (8.40 MI) NORTHWESTERLY ALONG STATE HIGHWAY 1 FROM THE POST OFFICE IN POINT REYES STATION, ALSO 13.6 KM (8.45 MI) SOUTHEASTERLY ALONG STATE HIGHWAY 1 FROM THE JUNCTION OF FIRST STREET IN TOMALES, IN TOP OF AND 0.7 M (2.3 FT) SOUTH OF THE NORTH END OF THE EAST CONCRETE HEADWALL OF CULVERT NUMBER 37.05, 15.8 M (51.8 FT) SOUTH OF THE CENTER OF A DRIVEWAY, AND 6.6 M (21.7 FT) EAST OF THE CENTERLINE OF THE HIGHWAY. THE MARK IS 0.6 M BELOW THE HIGHWAY. JT2638ADAMShttp://www.geocaching.com/mark/details.asp?PID=JT2638ADAMSGeocacheGeocacheADAMSCGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>ADAMS</h1> <b> PID </b> JT2638 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> TOMALES (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1992)</b> 38 07 52.61713(N) 122 56 50.32792(W) ADJUSTED <br> <b> NAVD 88 </b> 60. (meters) 197. (feet) SCALED <br> <hr> <b> EPOCH DATE </b> 1991.35 <br> <b> LAPLACE CORR</b> 6.32 (seconds) DEFLEC99 <br> <b> GEOID HEIGHT</b> -32.31 (meters) GEOID03 <br> <p> <b> HORZ ORDER </b> THIRD <br> <p>The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in March 1994. The horizontal coordinates are valid at the epoch date displayed above. The epoch date for horizontal control is a decimal equivalence of Year/Month/Day. <p>The orthometric height was scaled from a topographic map. <p>The Laplace correction was computed from DEFLEC99 derived deflections. <p>The geoid height was determined by GEOID03. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td>Units</td><td>Scale Fact</td><td>r Converg.</td></tr><tr><td>SPC CA 3 </td><td> 683,849.292 1</td><td>785,465.152</td><td> MT </td><td>0.99995114</td><td> -1 ' 29 54.0"</td></tr><tr><td>SPC CA 3 </td><td>2,243,595.55 5</td><td>857,813.59 </td><td> sFT </td><td>0.99995114</td><td> -1 ' 29 54.0"</td></tr><tr><td>UTM 10 </td><td>4,220,382.564 </td><td>504,617.492</td><td> MT </td><td>0.99960026</td><td> +0 ' 01 57.1"</td></tr> </table> <p> <b> </b> Elev Factor x Scale Factor = Combined Factor <br> <b>SPC CA 3 </b> 0.99999568 x 0.99995114 = 0.99994682 <br> <b>UTM 10 </b> 0.99999568 x 0.99960026 = 0.99959595 <br> <p> <table border=1><tr><td> </td><td> Primary Azimuth Mark </td><td>Grid Az</td></tr><tr><td>SPC CA 3 </td><td> FOSTER RESET </td><td>081° 44' 31.1"</td></tr><tr><td>UTM 10 </td><td> FOSTER RESET </td><td>080° 12' 40.0"</td></tr> </table> <p> <table border=1><tr><td>PID </td><td>Reference Object </td><td> Distance </td><td>Geod. Az </td></tr><tr><td>JT2635</td><td>FOSTER RESET </td><td>APPROX. 3.6 KM</td><td>080° 14' 37.1"</td></tr><tr><td>JT2624</td><td>WHITE BARN CUPOLA </td><td>APPROX. 2.9 KM</td><td>083° 44' 45.5"</td></tr><tr><td>DB4024</td><td>ADAMS RM 1 </td><td> 14.086 METERS</td><td>159° 53' </td></tr><tr><td>DB4025</td><td>ADAMS RM 2 </td><td> 12.172 METERS</td><td>235° 23' </td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> <b> NAD 83(1986)</b> 38 07 52.61102(N) 122 56 50.32243(W) AD(1984.00) 3 <br> <b> NAD 27 </b> 38 07 52.88000(N) 122 56 46.32500(W) AD( ) 3 <br> <p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH0461720383(NAD 83) <br>MARKER: DO = NOT SPECIFIED OR SEE DESCRIPTION <br>SETTING: 80 = SET IN A BOULDER <br>SP_SET: IN A DRILL HOLE IN ROCK LEDGE <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1929 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1931 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr><tr><td>1937 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr><tr><td>1946 </td><td>SEE DESCRIPTION </td><td>ATT</td></tr><tr><td>1956 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr><tr><td>1959 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr><tr><td>1964 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY COAST AND GEODETIC SURVEY 1929 (CP) STATION IS ON TOMALES POINT PENINSULA, ON THE SEAWARD ONE OF TWO BARE ROUND HILLS ABOUT 1/2 MILE W OF ADAMS RANCH AND ABOUT 1/2 MILE E OF BEACH. ABBOTS LAGOON LIES ABOUT 1 MILE S OF STATION AND JUST TO THE N IS A FLAT SANDY PLAIN. <p>STATION AND REFERENCE MARKS ARE STANDARD BRONZE DISKS WEDGED IN A DRILL HOLE IN A BOULDER AS DESCRIBED IN NOTES 4 AND 12C. <p>TO REACH PROCEED FROM POINT REYES STATION THROUGH INVERNESS AND OUT THE TOMALES POINT ROAD (FAIR) TURNING W AT THE FIRST RANCH HOUSE AND FOLLOW THIS ROAD TO ADAMS RANCH. TRUCK CAN BE DRIVEN FROM ADAMS RANCH TO STATION. <p>HEIGHT OF SIGNAL ABOVE STATION MARK - 3.0 METERS. <p> <h2>STATION RECOVERY (1931) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1931 (LCJ) STATION RECOVERED IN GOOD CONDITION. THE DESCRIPTION SHOULD BE ALTERED TO READ THE STATION IS 1/2 MILE SW OF THE JAMES MC CLURE RANCH HOUSE AND ABOUT 1/2 MILE NW OF A SMALL DAM IN THE NE END OF ABBOTTS LAGOON. THE RANCH NOW OCCUPIED BY MR. MC CLURE IS A PART OF THE O.L. SHAFTER ESTATE. THE REST OF THE DESCRIPTION IS GOOD. <p> <h2>STATION RECOVERY (1937) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1937 (FHH) STATION IS ON TOMALES POINT PENINSULA, ON THE SEAWARD ONE OF TWO BARE ROUND HILLS ABOUT 1/2 MILE SW OF MC CLURES RANCH HOUSES AND ABOUT 1/2 MILE E OF BEACH. ABBOTS LAGOON LIES ABOUT 1 MILE S OF STATION AND JUST TO THE N IS A SANDY VALLEY. STATION IS 1/2 MILE NW OF OLD DESERTED DAM IN ABBOTTS LAGOON. <p>TO REACH PROCEED FROM POINT REYES STATION THROUGH INVERNESS AND OUT THE TOMALES POINT ROAD TURNING W AT THE FIRST RANCH HOUSE AND FOLLOW THIS ROAD TO JIMMIE MC CLURES RANCH (FORMERLY KNOWN AS ADAMS RANCH). TRUCK CAN BE DRIVEN TO STATION THROUGH MC CLURES RANCH ALONG E SIDE OF SAND VALLEY. <p>SOME OF ROADS AND TRAILS NOT PASSABLE BY TRUCK IN WET WEATHER. <p> <h2>STATION RECOVERY (1946) </h2> <p>RECOVERY NOTE BY AMERICAN T AND T CO 1946 (MOL) STATION RECOVERED AS DESCRIBED AND IN GOOD CONDITION. IT IS ON THE SEAWARD ONE OF TWO BARE ROUND HILLS, 1/2 MILE SW OF MC CLURES RANCH, 1/2 MILE E OF SEA, 1/2 MILE NW OF ABBOTS LAGOON. IT IS A BRONZE STATION DISK SET IN A BOULDER. <p>REFERENCE MARKS ARE BRONZE DISKS SET IN BOULDERS. A WEATHER-BEATEN HYDROGRAPHIC TRIPOD WITH SLATS ON THE TWO SEAWARD FACES IS APPROXIMATELY CENTERED OVER THE MARK. <p>TO REACH STATION FROM SIR FRANCIS DRAKE HIGHWAY, GO 2.7 MILES W OF INVERNESS, TURN RIGHT ON PIERCE POINT ROAD, GO 1.3 MILES TO FORK, TURN LEFT GO 1.6 MILES TO H RANCH, TURN RIGHT GO 1.6 MILES TO MC CLURES RANCH, TURN LEFT ON TRACK THROUGH DOUBLE GATES UP HILL 1/4 MILE, LEAVE TRACK TURNING TO S ACROSS SWAIL, AND THEN CLIMB CLOCKWISE AROUND HILL TO STATION. NO DEFINED TRACK AND MAY BE IMPASSABLE IN WET WEATHER. <p> <h2>STATION RECOVERY (1956) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1956 (FN) STATION AND REFERENCE MARKS WERE RECOVERED IN GOOD CONDITION AS DESCRIBED. DISTANCES TO REFERENCE MARKS WERE VERIFIED. <p> <h2>STATION RECOVERY (1959) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1959 (JCM) THE STATION MARK AND REFERENCE MARKS WERE RECOVERED IN GOOD CONDITION AND THE 1929, 1931, 1937, AND 1946 DESCRIPTIONS ARE ADEQUATE WITH THE FOLLOWING ADDITIONS-- <p>1. THE STATION MARK IS 2.6 FEET SOUTHEAST OF A WOODEN WITNESS POST AND IS STAMPED ADAMS 1929. <p>2. REFERENCE MARK NUMBER 1 IS STAMPED ADAMS NO 1 1929 AND REFERENCE MARK NUMBER 2 IS STAMPED ADAMS NO 2 1929. <p> <h2>STATION RECOVERY (1964) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1964 (FN) THE STATION AND REFERENCE MARKS WERE RECOVERED IN GOOD CONDITION AS DESCRIBED IN 1929, 1937, 1946 AND 1959. JT2556AGNEW 2http://www.geocaching.com/mark/details.asp?PID=JT2556AGNEW 2GeocacheGeocacheAGNEW 2CGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>AGNEW 2</h1> <b> PID </b> JT2556 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> INVERNESS (1976) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1992)</b> 38 06 39.99237(N) 122 51 58.15153(W) ADJUSTED <br> <b> NAVD 88 </b> 11. (meters) 36. (feet) SCALED <br> <hr> <b> EPOCH DATE </b> 1991.35 <br> <b> LAPLACE CORR</b> 4.57 (seconds) DEFLEC99 <br> <b> GEOID HEIGHT</b> -32.16 (meters) GEOID03 <br> <p> <b> HORZ ORDER </b> THIRD <br> <p>The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in March 1994. The horizontal coordinates are valid at the epoch date displayed above. The epoch date for horizontal control is a decimal equivalence of Year/Month/Day. <p>The orthometric height was scaled from a topographic map. <p>The Laplace correction was computed from DEFLEC99 derived deflections. <p>The geoid height was determined by GEOID03. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td>Units</td><td>Scale Fact</td><td>r Converg.</td></tr><tr><td>SPC CA 3 </td><td> 681,427.913 1</td><td>792,521.610</td><td> MT </td><td>0.99994887</td><td> -1 ' 26 55.1"</td></tr><tr><td>SPC CA 3 </td><td>2,235,651.41 5</td><td>880,964.65 </td><td> sFT </td><td>0.99994887</td><td> -1 ' 26 55.1"</td></tr><tr><td>UTM 10 </td><td>4,218,151.369 </td><td>511,733.641</td><td> MT </td><td>0.99960170</td><td> +0 ' 04 57.4"</td></tr> </table> <p> <b> </b> Elev Factor x Scale Factor = Combined Factor <br> <b>SPC CA 3 </b> 1.00000335 x 0.99994887 = 0.99995222 <br> <b>UTM 10 </b> 1.00000335 x 0.99960170 = 0.99960505 <br> <p> <table border=1><tr><td> </td><td> Primary Azimuth Mark </td><td>Grid Az</td></tr><tr><td>SPC CA 3 </td><td> REYNOLDS 2 </td><td>337° 32' 11.3"</td></tr><tr><td>UTM 10 </td><td> REYNOLDS 2 </td><td>336° 00' 18.8"</td></tr> </table> <p> <table border=1><tr><td>PID </td><td>Reference Object </td><td> Distance </td><td>Geod. Az </td></tr><tr><td>JT2552</td><td>LONE TREE ON HILL </td><td>APPROX. 3.7 KM</td><td>055° 04' 55.0"</td></tr><tr><td>JT2563</td><td>MILLERTON HORSE BARN N GABLE </td><td>APPROX. 1.8 KM</td><td>097° 52' 26.3"</td></tr><tr><td>JT2579</td><td>HIGH SHARP PEAK </td><td>APPROX. 9.5 KM</td><td>110° 53' 53.4"</td></tr><tr><td>DB4029</td><td>AGNEW 2 RM SW </td><td> 10.455 METERS</td><td>234° 41' </td></tr><tr><td>JT2644</td><td>REYNOLDS 2 </td><td>APPROX. 4.7 KM</td><td>336° 05' 16.2"</td></tr><tr><td>DB4028</td><td>AGNEW 2 RM N </td><td> 7.023 METERS</td><td>350° 42' </td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> <b> NAD 83(1986)</b> 38 06 39.98770(N) 122 51 58.14886(W) AD(1984.00) 3 <br> <b> NAD 27 </b> 38 06 40.25248(N) 122 51 54.18642(W) AD( ) 3 <br> <p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH1173418151(NAD 83) <br>MARKER: Z = SEE DESCRIPTION <br>SETTING: 0 = UNSPECIFIED SETTING <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1906 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1931 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr><tr><td>1953 </td><td>SEE DESCRIPTION </td><td>USGS</td></tr><tr><td>1956 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr><tr><td>1959 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY COAST AND GEODETIC SURVEY 1906 (WBF) STATION IS ON THE LITTLE CLEARED BLUFF, KNOWN AS CAVALLO POINT, THAT IS JUST N OF WHERE THE COUNTY ROAD LEAVES THE BAY SHORE AND RUNS UP INTO THE HILLS. ON TOP OF THE BLUFF, 30 FEET BACK FROM ITS EDGE, AND 15 FEET S OF THE FENCE RUNNING E AND W. A HOUSE OCCUPIED BY ITALIANS IS AT THE FOOT OF THE BLUFF. MARKED AS FOLLOWS--A BOTTLE WAS BURIED, MOUTH UP, 22 INCHES BELOW THE SURFACE OF THE GROUND. 6 INCHES OF DIRT WAS PLACED ABOVE THE BOTTLE, THEN A LARGE STONE SET WITH DRILL HOLE IN IT, MARKING THE STATION. REFERENCE MARKS ARE--TWO ROCKS WITH DRILL HOLES IN THEM SET IN AT THE FOLLOWING AZIMUTHS AND DISTANCES--170 DEG 43 MIN, 23.04 FEET. AND 54 DEG 42 MIN, 34.30 FEET. <p> <h2>STATION RECOVERY (1931) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1931 (LCJ) THE STATION AND REFERENCE MARK IN AZIMUTH 54 DEG 42 MIN WERE RECOVERED AS DESCRIBED. REFERENCE MARK IN AZIMUTH 170 DEG 43 MIN WAS NOT RECOVERED AND IS BELIEVED TO BE LOST. <p>THE STATION IS 20 FEET BACK FROM THE EDGE OF THE BLUFF. A STANDARD BRASS MARK STAMPED AGNEW 2 1906 WAS SET IN THE DRILL HOLE OF SURFACE MARK. <p>A STANDARD MARK WAS SET IN THE RECOVERED REFERENCE DRILL HOLE. THIS MARK IS 1 FOOT S OF AN E AND W FENCE. <p> <h2>STATION RECOVERY (1953) </h2> <p>RECOVERY NOTE BY US GEOLOGICAL SURVEY 1953 THE REFERENCE MARK IN AZIMUTH 54 DEG 42 MIN WAS FOUND IN GOOD CONDITION, BUT THE STATION MARK COULD NOT BE FOUND. THERE IS EVIDENCE OF DIGGING IN THE AREA WHERE THE STATION MARK SHOULD HAVE BEEN. <p> <h2>STATION RECOVERY (1956) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1956 (FN) NOT RECOVERED. STATION MARK AND UNDERGROUND MARK WERE SEARCHED FOR BUT NOT FOUND. REFERENCE MARK IN AZIMUTH 54 DEG 42 MIN WAS RECOVERED IN GOOD CONDITION AS DESCRIBED. IT IS UNSTAMPED. REFERENCE MARK IN AZIMUTH 170 DEG 43 MIN WAS SEARCHED FOR BUT NOT FOUND. <p> <h2>STATION RECOVERY (1959) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1959 (JCM) THE REFERENCE MARK RECOVERED IN 1931 WAS FOUND BUT NEITHER THE SURFACE-STATION MARK, THE UNDERGROUND-STATION MARK, NOR THE OTHER REFERENCE MARK WERE RECOVERED AFTER A CAREFUL SEARCH. AF8689ANGEL IS AYALA COVE FPhttp://www.geocaching.com/mark/details.asp?PID=AF8689ANGEL IS AYALA COVE FPGeocacheGeocacheANGEL IS AYALA COVE FPNOSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>ANGEL IS AYALA COVE FP</h1> <b> PID </b> AF8689 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1992)</b> 37 51 57.75961(N) 122 26 09.19553(W) ADJUSTED <br> <b> NAVD 88 </b> 14. (meters) 46. (feet) SCALED <br> <hr> <b> EPOCH DATE </b> 1991.35 <br> <b> LAPLACE CORR</b> 1.02 (seconds) DEFLEC99 <br> <b> GEOID HEIGHT</b> -32.40 (meters) GEOID03 <br> <p> <b> HORZ ORDER </b> THIRD <br> <p>The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in April 1998. The horizontal coordinates are valid at the epoch date displayed above. The epoch date for horizontal control is a decimal equivalence of Year/Month/Day. <p>The orthometric height was scaled from a topographic map. <p>The Laplace correction was computed from DEFLEC99 derived deflections. <p>The geoid height was determined by GEOID03. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td>Units</td><td>Scale Fact</td><td>r Converg.</td></tr><tr><td>SPC CA 3 </td><td> 653,366.959 1</td><td>829,681.267</td><td> MT </td><td>0.99993118</td><td> -1 ' 11 06.8"</td></tr><tr><td>SPC CA 3 </td><td>2,143,588.10 6</td><td>002,879.29 </td><td> sFT </td><td>0.99993118</td><td> -1 ' 11 06.8"</td></tr><tr><td>UTM 10 </td><td>4,191,102.463 </td><td>549,617.712</td><td> MT </td><td>0.99963032</td><td> +0 ' 20 46.6"</td></tr> </table> <p> <b> </b> Elev Factor x Scale Factor = Combined Factor <br> <b>SPC CA 3 </b> 1.00000286 x 0.99993118 = 0.99993404 <br> <b>UTM 10 </b> 1.00000286 x 0.99963032 = 0.99963318 <br> <p> <h2>Superseded Survey Control</h2>
<p>No superseded survey control is available for this station. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEG4961891102(NAD 83) <br>MARKER: 83 = FLAGSTAFF <br>MAGNETIC: N = NO MAGNETIC MATERIAL <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1978 </td><td>FIRST OBSERVED </td><td>NOS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL OCEAN SERVICE 1978 (JPR) THE STATION IS LOCATED IN SAN FRANCISCO BAY ON THE NORTH SIDE OF ANGEL ISLAND IN AYALA COVE, ON THE HILLSIDE ABOUT 50 METERS WEST OF THE ANGEL ISLAND STATE PARK, AYALA COVE RANGER STATION. THE STATION IS A WHITE FLAG POLE ABOUT 25 METERS HIGH AND ABOUT 1/2 METERS IN DIAMETER AT ITS BASE, WITH A GOLD COLORED SPHERE MOUNTED AT THE TOP. DESCRIBED BY S.M. MILLER HT3012ANGEL ISLAND PEAK 2http://www.geocaching.com/mark/details.asp?PID=HT3012ANGEL ISLAND PEAK 2GeocacheGeocacheANGEL ISLAND PEAK 2CGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>ANGEL ISLAND PEAK 2</h1> <b> PID </b> HT3012 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1992)</b> 37 51 41.47235(N) 122 25 50.80702(W) ADJUSTED <br> <b> NAVD 88 </b> 239. (meters) 784. (feet) SCALED <br> <hr> <b> EPOCH DATE </b> 1991.35 <br> <b> LAPLACE CORR</b> 1.11 (seconds) DEFLEC99 <br> <b> GEOID HEIGHT</b> -32.40 (meters) GEOID03 <br> <p> <b> HORZ ORDER </b> FIRST <br> <p>The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in March 1994. The horizontal coordinates are valid at the epoch date displayed above. The epoch date for horizontal control is a decimal equivalence of Year/Month/Day. <p>The orthometric height was scaled from a topographic map. <p>The Laplace correction was computed from DEFLEC99 derived deflections. <p>The geoid height was determined by GEOID03. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td>Units</td><td>Scale Fact</td><td>r Converg.</td></tr><tr><td>SPC CA 3 </td><td> 652,855.654 1</td><td>830,120.237</td><td> MT </td><td>0.99993103</td><td> -1 ' 10 55.5"</td></tr><tr><td>SPC CA 3 </td><td>2,141,910.59 6</td><td>004,319.48 </td><td> sFT </td><td>0.99993103</td><td> -1 ' 10 55.5"</td></tr><tr><td>UTM 10 </td><td>4,190,603.222 </td><td>550,070.055</td><td> MT </td><td>0.99963088</td><td> +0 ' 20 57.7"</td></tr> </table> <p> <b> </b> Elev Factor x Scale Factor = Combined Factor <br> <b>SPC CA 3 </b> 0.99996761 x 0.99993103 = 0.99989864 <br> <b>UTM 10 </b> 0.99996761 x 0.99963088 = 0.99959850 <br> <p> <table border=1><tr><td> </td><td> Primary Azimuth Mark </td><td>Grid Az</td></tr><tr><td>SPC CA 3 </td><td> RICHMOND PIER BLDG SW CORNER </td><td>037° 12' 52.8"</td></tr><tr><td>UTM 10 </td><td> RICHMOND PIER BLDG SW CORNER </td><td>035° 40' 59.6"</td></tr> </table> <p> <table border=1><tr><td>PID </td><td>Reference Object </td><td> Distance </td><td>Geod. Az </td></tr><tr><td>HT3168</td><td>RICHMOND PIER BLDG SW CORNER </td><td>APPROX. 6.5 KM</td><td>036° 01' 57.3"</td></tr><tr><td>HT3014</td><td>ANGEL ISLAND PEAK 3 </td><td> 42.512 METERS</td><td>059° 49' </td></tr><tr><td>DB2776</td><td>ANGEL ISLAND PEAK 2 RP E </td><td> 63.296 METERS</td><td>075° 15' </td></tr><tr><td>HT2839</td><td>BERKELEY INCINERATOR STACK </td><td>APPROX.11.1 KM</td><td>078° 25' 24.2"</td></tr><tr><td>DB2779</td><td>ANGEL ISLAND PEAK 2 RM </td><td> 10.360 METERS</td><td>084° 45' </td></tr><tr><td>HT2904</td><td>CAMPANILE UNIVERSITY OF CALIF </td><td>APPROX.15.3 KM</td><td>085° 33' 16.5"</td></tr><tr><td>HS5122</td><td>MOUNT DIABLO AVIATION BEACON </td><td>APPROX.45.4 KM</td><td>087° 01' 44.9"</td></tr><tr><td>HT2906</td><td>BERKELEY PEET BROTHERS STACK </td><td>APPROX.11.9 KM</td><td>092° 57' 00.4"</td></tr><tr><td>HT2978</td><td>OAKLAND YERBA BUENA POWER CHIM </td><td>APPROX.13.1 KM</td><td>106° 44' 34.1"</td></tr><tr><td>HT2942</td><td>OAKLAND MOLE HIGH TANK </td><td>APPROX.10.5 KM</td><td>122° 50' 11.7"</td></tr><tr><td>HT3092</td><td>SAN FRANCISCO FERRY BLDG FS </td><td>APPROX. 8.0 KM</td><td>155° 56' 10.3"</td></tr><tr><td>HT3057</td><td>SAN FRANCISCO BANK AM DOME FP </td><td>APPROX. 8.7 KM</td><td>164° 59' 15.5"</td></tr><tr><td>DB2777</td><td>ANGEL ISLAND PEAK 2 RP S </td><td> 16.024 METERS</td><td>166° 23' </td></tr><tr><td>HT3091</td><td>SAN FRANCISCO CTY HALL STEEPLE </td><td>APPROX. 9.2 KM</td><td>173° 38' 02.4"</td></tr><tr><td>HT3074</td><td>SAN FRANCISCO YACHT CLUB BCN </td><td>APPROX. 6.1 KM</td><td>190° 52' 26.3"</td></tr><tr><td>HT3129</td><td>SAN FRANCISCO ST IGNAT W SPIRE </td><td>APPROX. 9.8 KM</td><td>191° 19' 56.2"</td></tr><tr><td>HT3068</td><td>SAN FRANCISCO PRAYER BK CROSS </td><td>APPROX.10.8 KM</td><td>202° 47' 46.3"</td></tr><tr><td>DB2781</td><td>GP SF 91 TTR </td><td> </td><td>209° 29' </td></tr><tr><td>DB2780</td><td>ANGEL ISLAND PEAK 2 RM 2 </td><td> 7.614 METERS</td><td>229° 39' </td></tr><tr><td>DB2373</td><td>GP SF 91 AZ MK </td><td> </td><td>247° 14' 18.6"</td></tr><tr><td>HT3072</td><td>SAUSALITO POWERHOUSE GABLE </td><td>APPROX. 4.7 KM</td><td>247° 35' 35.5"</td></tr><tr><td>DB2778</td><td>ANGEL ISLAND PEAK 2 RP W </td><td> 38.294 METERS</td><td>259° 31' </td></tr><tr><td>HT3145</td><td>CALIFORNIA CITY NAVAL SPIPE </td><td>APPROX. 3.7 KM</td><td>334° 59' 39.4"</td></tr><tr><td>HT3147</td><td>EAST BROTHER ISLAND LIGHTHOUSE </td><td>APPROX.11.3 KM</td><td>358° 47' 11.1"</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> <b> NAD 83(1986)</b> 37 51 41.46752(N) 122 25 50.80216(W) AD(1984.00) 1 <br> <b> NAD 27 </b> 37 51 41.72900(N) 122 25 46.90000(W) AD( ) 1 <br> <p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEG5007090603(NAD 83) <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1881 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1932 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr><tr><td>1938 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr><tr><td>1940 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr><tr><td>1944 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr><tr><td>1947 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr><tr><td>1954 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr><tr><td>1956 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr><tr><td>1959 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr><tr><td>1963 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY COAST AND GEODETIC SURVEY 1932 STATION IS ON SUMMIT OF ANGEL ISLAND. SURFACE MARK IS GRANITE BLOCK, 2 FEET LONG AND 6 INCHES SQUARE, PROJECTING SLIGHTLY ABOVE GROUND AND MARKED U.S.C. AND G. SURVEY, 1881. UNDERGROUND MARK IS SPIKE IN END OF STAKE, 1 FOOT LONG AND 5 INCHES IN DIAMETER, BURIED 2-1/2 FEET BELOW SURFACE. THREE WITNESS STONES WERE SET 6 FEET TO N, S AND E OF STATION. IN 1916 WITNESS STONES WERE NOT RECOVERED. AND A STANDARD REFERENCE DISK IN CONCRETE, AS DESCRIBED IN NOTE 11C, WAS ESTABLISHED 10.36 METERS (34.0 FEET) FROM STATION IN AZIMUTH 264 DEG 46 MIN. <p> <h2>STATION RECOVERY (1938) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1938 (RRL) STATION AND REFERENCE MARKS RECOVERED AS DESCRIBED. WITNESS MARKS NOT RECOVERED. <p>A TRIPOD SIGNAL MADE FROM REDWOOD 4- BY 4-INCH WAS CONSTRUCTED OVER THE STATION, WITH THE LEGS SET IN CONCRETE SO THAT IT WOULD REMAIN IN PLACE FOR A LONG TIME. TRIPOD IS 12 FEET HIGH TO THE APEX, WITH A 4- BY 4-INCH CENTER POLE EXTENDING 3 FEET ABOVE THE APEX. <p> <h2>STATION RECOVERY (1940) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1940 (JMS) STATION IS ON SUMMIT OF ANGEL ISLAND. SURFACE MARK IS A GRANITE BLOCK, 6 INCHES SQUARE WITH DRILL HOLE IN TOP, AND IS CHISELED THEREON U.S.C. AND G. SURVEY 1881. THE REFERENCE MARK, ESTABLISHED IN 1916, WAS RECOVERED AS DESCRIBED AND RECOVERY MEASUREMENTS IN CLOSE AGREEMENT WITH 1932 MEASUREMENTS. <p>AN ADDITIONAL REFERENCE MARK WAS ESTABLISHED, STAMPED - ANGEL ISLAND PEAK 2 1881 NO. 2, 1940, A STANDARD DISK SET IN THE TOP OF SECTION OF GALVANIZED SHEET TUBE 4 INCHES IN DIAMETER, EXTENDING 14 INCHES BELOW THE SURFACE OF THE GROUND AND FILLED WITH CONCRETE AND SET FLUSH WITH THE GROUND. <p>LATER INFORMATION ADVISES THAT TWO REFERENCE MARKS WERE ESTABLISHED IN 1938. THESE WERE NOT NOTICED NOR SEARCHED FOR, THE ADDITIONAL REFERENCE MARK BEING ESTABLISHED BECAUSE OF ONLY THE ONE REFERENCE MARK BEING MENTIONED IN DESCRIPTION. <p> <h2>STATION RECOVERY (1944) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1944 (EHP) RECOVERED AS DESCRIBED. TRIPOD IS STILL IN PLACE OVER THE STATION AND IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1947) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1947 (WMG) STATION NOT VISITED. PERMANENT TOWER ERECTED BY THE NAVY OVER THE MARK. STRUCTURE IDENTIFIED FROM SEA. <p> <h2>STATION RECOVERY (1954) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1954 (GLA) THE STATION WAS FOUND AS DESCRIBED. ALL MARKS IN GOOD CONDITION. <p>AT THIS TIME, THREE REFERENCE POSTS WERE SET SO THAT THE STATION CAN BE REMOVED AND RESET IN THE EXACT POSITION AFTER THE TOP OF THE HILL IS GRADED OFF. <p> <h2>STATION RECOVERY (1956) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1956 (NES) STATION FOUND AS DESCRIBED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1959) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1959 (JCM) A CAREFUL SEARCH WAS MADE BUT NEITHER THE STATION MARK NOR THE REFERENCE MARKS COULD BE FOUND ALTHOUGH A STANDARD STATION MARK DISK STAMPED ANGEL ISLAND PEAK 3 1956 WAS FOUND CEMENTED IN A DRILL HOLE IN THE TOP AND NEAR THE WEST END OF THE CONCRETE APRON BENEATH THE TARGET TRACKING RADAR MOUNT. <p> <h2>STATION RECOVERY (1963) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1963 (SJD) THE LOCATION OF THE STATION WAS FOUND TO BE AT THE BOTTOM OF AN EXCAVATED AREA AND AT THE TOE OF A STEEP SLOPE. IT IS APPARENT THE STATION MARK WAS DESTROYED DURING THE CONSTRUCTION OF THE RADAR INSTALLATION IN 1956. STATION LOST. HT3014ANGEL ISLAND PEAK 3http://www.geocaching.com/mark/details.asp?PID=HT3014ANGEL ISLAND PEAK 3GeocacheGeocacheANGEL ISLAND PEAK 3CGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>ANGEL ISLAND PEAK 3</h1> <b> PID </b> HT3014 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1992)</b> 37 51 42.16553(N) 122 25 49.30361(W) ADJUSTED <br> <b> NAVD 88 </b> 239. (meters) 784. (feet) SCALED <br> <hr> <b> EPOCH DATE </b> 1991.35 <br> <b> LAPLACE CORR</b> 1.11 (seconds) DEFLEC99 <br> <b> GEOID HEIGHT</b> -32.40 (meters) GEOID03 <br> <p> <b> HORZ ORDER </b> SECOND <br> <p>The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in March 1994. No horizontal observational check was made to the station. The horizontal coordinates are valid at the epoch date displayed above. The epoch date for horizontal control is a decimal equivalence of Year/Month/Day. <p>The orthometric height was scaled from a topographic map. <p>The Laplace correction was computed from DEFLEC99 derived deflections. <p>The geoid height was determined by GEOID03. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td>Units</td><td>Scale Fact</td><td>r Converg.</td></tr><tr><td>SPC CA 3 </td><td> 652,876.261 1</td><td>830,157.417</td><td> MT </td><td>0.99993104</td><td> -1 ' 10 54.6"</td></tr><tr><td>SPC CA 3 </td><td>2,141,978.20 6</td><td>004,441.46 </td><td> sFT </td><td>0.99993104</td><td> -1 ' 10 54.6"</td></tr><tr><td>UTM 10 </td><td>4,190,624.810 </td><td>550,106.659</td><td> MT </td><td>0.99963092</td><td> +0 ' 20 58.7"</td></tr> </table> <p> <b> </b> Elev Factor x Scale Factor = Combined Factor <br> <b>SPC CA 3 </b> 0.99996761 x 0.99993104 = 0.99989865 <br> <b>UTM 10 </b> 0.99996761 x 0.99963092 = 0.99959854 <br> <p> <table border=1><tr><td> </td><td> Primary Azimuth Mark </td><td>Grid Az</td></tr><tr><td>SPC CA 3 </td><td> ALCATRAZ LIGHTHOUSE </td><td>170° 45' 14.2"</td></tr><tr><td>UTM 10 </td><td> ALCATRAZ LIGHTHOUSE </td><td>169° 13' 20.9"</td></tr> </table> <p> <table border=1><tr><td>PID </td><td>Reference Object </td><td> Distance </td><td>Geod. Az </td></tr><tr><td>HT3019</td><td>ALCATRAZ LIGHTHOUSE </td><td>APPROX. 4.0 KM</td><td>169° 34' 19.6"</td></tr><tr><td>DB2781</td><td>GP SF 91 TTR </td><td> 4.070 METERS</td><td>229° 31' </td></tr><tr><td>HT3012</td><td>ANGEL ISLAND PEAK 2 </td><td> 42.512 METERS</td><td>239° 49' </td></tr><tr><td>DB2373</td><td>GP SF 91 AZ MK </td><td> 75.935 METERS</td><td>243° 05' </td></tr><tr><td>AF8677</td><td>ANGEL ISLAND PEAK 3 RM 2 </td><td> 5.468 METERS</td><td>310° 16' </td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> <b> NAD 83(1986)</b> 37 51 42.15987(N) 122 25 49.30056(W) AD(1984.00) 2 <br> <b> NAD 27 </b> 37 51 42.42200(N) 122 25 45.39900(W) AD( ) 2 <br> <p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEG5010790625(NAD 83) <br>MARKER: Z = SEE DESCRIPTION <br>SETTING: 35 = SET IN A MAT FOUNDATION OR CONCRETE SLAB OTHER THAN <br>WITH SETTING: PAVEMENT <br>MAGNETIC: N = NO MAGNETIC MATERIAL <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1956 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1963 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr><tr><td>1965 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr><tr><td>1978 </td><td>GOOD </td><td>NOS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY COAST AND GEODETIC SURVEY 1956 (NES) THE STATION IS ON THE HIGHEST POINT OF ANGEL ISLAND, SET IN THE E ONE OF TWO CONCRETE FOUNDATIONS FOR RADAR SCREENS. <p>THE STATION MARK IS A STANDARD STATION-MARK DISK, STAMPED ANGEL ISLAND PEAK 3 1956, CEMENTED IN A DRILL HOLE IN THE CONCRETE FLOOR OF A RADAR SCREEN. <p> <h2>STATION RECOVERY (1963) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1963 (SJD) THE STATION MARK WAS RECOVERED IN GOOD CONDITION. THREE REFERENCE MARKS WERE ESTABLISHED ON THIS DATE. <p>THE STATION IS LOCATED AT AN ABANDONED RADAR INSTALLATION ON THE HIGHEST POINT OF ANGEL ISLAND IN SAN FRANCISCO BAY. <p>THE STATION MARK IS A COAST AND GEODETIC SURVEY TRIANGULATION STATION DISK STAMPED ANGEL ISLAND PEAK 3 1956 CEMENTED IN A DRILL HOLE IN THE TOP OF A 16X28-FOOT CONCRETE SLAB THAT IS FLUSH WITH THE GROUND. IT IS 111.5 FEET NORTHEAST OF A SMALL, WOODEN WATER TANK, 23.0 FEET SOUTHEAST OF A CHAIN-LINK FENCE, 4.3 FEET NORTH-NORTHWEST OF THE SOUTHWEST CORNER OF THE SLAB, AND 0.9 FOOT EAST-NORTHEAST OF THE WEST SIDE OF THE SLAB. <p>REFERENCE MARK NUMBER 2 IS A COAST AND GEODETIC SURVEY REFERENCE MARK DISK STAMPED ANGEL ISLAND PEAK 3 NO 2 1956 CEMENTED IN A DRILL HOLE IN THE TOP OF A CONCRETE RETAINING WALL THAT PROJECTS 0.1 FOOT ABOVE THE GROUND. IT IS 7.8 FEET NORTHWEST OF THE NORTHWEST CORNER OF THE CONCRETE SLAB ON WHICH THE STATION MARK IS SET, 7.0 FEET SOUTHEAST OF THE CHAIN-LINK FENCE, 1.7 FEET EAST-NORTHEAST OF THE WEST END OF THE WALL, AND ABOUT THE SAME ELEVATION AS THE STATION MARK. <p>REFERENCE MARK NUMBER 3 IS A U.S. ENGINEERS SURVEY MARK DISK STAMPED 30TH ENGR GP SF 91 TTR 1956 CEMENTED IN A DRILL HOLE IN THE CENTER OF THE CONCRETE SLAB ON WHICH THE STATION MARK IS SET AND IS ABOUT THE SAME ELEVATION AS THE STATION MARK. <p>REFERENCE MARK NUMBER 4 IS A U.S. ENGINEERS SURVEY MARK DISK STAMPED 30TH ENG GP SF 91 AZIMUTH MK 1956 CEMENTED IN A DRILL HOLE IN THE TOP OF A 16X28-FOOT CONCRETE SLAB ON THE WEST SIDE OF THE HILL TOP. IT IS 9.0 FEET NORTHEAST OF THE SOUTHWEST CORNER OF A CONCRETE RETAINING WALL WITH A GUARD RAIL MOUNTED ON ITS TOP, 1.8 FEET NORTHEAST OF THE SOUTHWEST CORNER OF THE SLAB, AND ABOUT THE SAME ELEVATION AS THE STATION MARK. <p> <h2>STATION RECOVERY (1965) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1965 (PAS) RECOVERED AS DESCRIBED EXCEPT THE RADAR SCREENS HAVE BEEN REMOVED. <p> <h2>STATION RECOVERY (1978) </h2> <p>RECOVERY NOTE BY NATIONAL OCEAN SERVICE 1978 (JPR) THE STATION AND REFERENCE MARK 2 WERE RECOVERED IN GOOD CONDITION. REFERENCE MARKS 3 AND 4 WERE NOT SEARCHED FOR. THE DESCRIPTION IS ADEQUATE FOR RECOVERY WITH THE FOLLOWING EXCEPTION, THE STATION MARK IS NOT ---STAMPED--- AND THE CHAIN LINK FENCE MENTIONED IN THE DESCRIPTION HAS APPARENTLY BEEN REMOVED. DESCRIBED BY S.M. MILLER JT2545ANTONIOhttp://www.geocaching.com/mark/details.asp?PID=JT2545ANTONIOGeocacheGeocacheANTONIOCGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>ANTONIO</h1> <b> PID </b> JT2545 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> PETALUMA (1981) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1992)</b> 38 11 36.67262(N) 122 44 04.82613(W) ADJUSTED <br> <b> NAVD 88 </b> 357.6 (meters) 1173. (feet) VERTCON <br> <hr> <b> EPOCH DATE </b> 1991.35 <br> <b> LAPLACE CORR</b> 2.14 (seconds) DEFLEC99 <br> <b> GEOID HEIGHT</b> -31.70 (meters) GEOID03 <br> <p> <b> HORZ ORDER </b> FIRST <br> <p>The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in March 1994. The horizontal coordinates are valid at the epoch date displayed above. The epoch date for horizontal control is a decimal equivalence of Year/Month/Day. <p>The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) <p>The Laplace correction was computed from DEFLEC99 derived deflections. <p>The geoid height was determined by GEOID03. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td>Units</td><td>Scale Fact</td><td>r Converg.</td></tr><tr><td>SPC CA 3 </td><td> 690,289.078 1</td><td>804,266.639</td><td> MT </td><td>0.99995893</td><td> -1 ' 22 05.3"</td></tr><tr><td>SPC CA 3 </td><td>2,264,723.42 5</td><td>919,498.13 </td><td> sFT </td><td>0.99995893</td><td> -1 ' 22 05.3"</td></tr><tr><td>SPC CA 2 </td><td> 558,745.310 1</td><td>935,640.192</td><td> MT </td><td>1.00003463</td><td> -0 ' 27 47.5"</td></tr><tr><td>SPC CA 2 </td><td>1,833,150.24 6</td><td>350,512.86 </td><td> sFT </td><td>1.00003463</td><td> -0 ' 27 47.5"</td></tr><tr><td>UTM 10 </td><td>4,227,320.102 </td><td>523,233.592</td><td> MT </td><td>0.99960665</td><td> +0 ' 09 50.6"</td></tr> </table> <p> <b> </b> Elev Factor x Scale Factor = Combined Factor <br> <b>SPC CA 3 </b> 0.99994886 x 0.99995893 = 0.99990779 <br> <b>SPC CA 2 </b> 0.99994886 x 1.00003463 = 0.99998349 <br> <b>UTM 10 </b> 0.99994886 x 0.99960665 = 0.99955553 <br> <p> <table border=1><tr><td> </td><td> Primary Azimuth Mark </td><td>Grid Az</td></tr><tr><td>SPC CA 3 </td><td> CALIFORNIA 1110 VA </td><td>194° 29' 04.3"</td></tr><tr><td>SPC CA 2 </td><td> CALIFORNIA 1110 VA </td><td>193° 34' 46.5"</td></tr><tr><td>UTM 10 </td><td> CALIFORNIA 1110 VA </td><td>192° 57' 08.4"</td></tr> </table> <p> <table border=1><tr><td>PID </td><td>Reference Object </td><td> Distance </td><td>Geod. Az </td></tr><tr><td>JT2540</td><td>PETALUMA SUNSET TWINE CO TANK </td><td>APPROX.10.3 KM</td><td>062° 22' 08.7"</td></tr><tr><td>DB4130</td><td>CALIFORNIA 1110 VA </td><td> </td><td>193° 06' 59.0"</td></tr><tr><td>DB4055</td><td>ANTONIO RM 2 </td><td> 32.492 METERS</td><td>199° 47' </td></tr><tr><td>DB4054</td><td>ANTONIO RM 1 </td><td> 24.597 METERS</td><td>223° 12' </td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> <b> NAD 83(1986)</b> 38 11 36.66666(N) 122 44 04.82328(W) AD(1984.00) 1 <br> <b> NAD 27 </b> 38 11 36.95400(N) 122 44 00.86600(W) AD( ) 1 <br> NGVD 29 (07/19/86) 356.8 (m) 1171. (f) VERT ANG <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH2323427320(NAD 83) <br>MARKER: DO = NOT SPECIFIED OR SEE DESCRIPTION <br>SETTING: 66 = SET IN ROCK OUTCROP <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1930 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1938 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr><tr><td>1949 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr><tr><td>1959 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr><tr><td>1960 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY COAST AND GEODETIC SURVEY 1930 (GLB) ABOUT 6 MILES WEST-SOUTHWEST OF PETALUMA, ON MOUNTAIN KNOWN AS ANTONIO MOUNTAIN. TO REACH FROM PETALUMA, GO WEST 7-1/2 MILES TO CREST OF EAST FLANK OF HILL, PASS THROUGH GATE TO RIGHT AND GO UP RIDGE TO STATION SITE. MARKED BY STANDARD STATION DISK IN BEDROCK, NOTE 2. REFERENCE MARKS ARE STANDARD REFERENCE DISKS IN BEDROCK, NOTE 12A. NO. 1 IS 24.617 METERS (80.76 FEET) (SLOPE) FROM STATION IN AZIMUTH 43 DEG 13 MIN. NO 2 IS 32.562 METERS (106.83 FEET) (SLOPE) FROM STATION IN AZIMUTH 19 DEG 48 MIN. <p> <h2>STATION RECOVERY (1938) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1938 (ACT) STATION IS ABOUT 6 MILES WSW OF PETALUMA ON HIGH POINT OF GRASSY MOUNTAIN KNOWN LOCALLY AS ANTONIO MOUNTAIN. <p>STATION MARK IS A STANDARD DISK SET IN ROCK OUTCROP, STAMPED ANTONIO 1929. PROJECTS 3 INCHES. <p>REFERENCE MARK NO. 1 IS A STANDARD DISK SET IN ROCK OUTCROP, STAMPED ANTONIO NO. 1 1929. <p>REFERENCE MARK NO. 2 IS A STANDARD DISK SET IN ROCK OUTCROP, STAMPED ANTONIO NO. 2 1929. <p>AZIMUTH MARK IS U.S.G.S. B.M. DISK SET IN BURIED BOULDER, ON HIGHEST POINT OF SECOND HILL. <p>TO REACH FROM PETALUMA GO W ON WESTERN AVENUE 1.9 MILES FROM MAIN STREET AND TURN LEFT ONTO PAVED ROAD, GO 3.7 MILES AND KEEP STRAIGHT AHEAD WHEN PAVED ROAD TURNS RIGHT, GO 1.9 MILES AND TURN OFF ROAD THROUGH GATE ON RIGHT, FOLLOW TRACK ROAD UP GRASSY RIDGE AS FAR AS PRACTICAL, THEN WALK NE ALONG RIDGE ABOUT 1 MILE TO STATION. <p> <h2>STATION RECOVERY (1949) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1949 (WRH) THE STATION WAS RECOVERED AS DESCRIBED AND WAS IN GOOD CONDITION. REFERENCE MARK MARK NUMBER ONE WAS IN GOOD CONDITION. REFERENCE MARK NUMBER TWO WAS IN FAIR CONDITION AS THE ROCK IT IS IN IS NOT TOO SOLID. A COMPLETE DESCRIPTION FOLLOWS. <p>THE STATION IS ON THE SUMMIT OF A HIGH GRASSY POINT THAT IS KNOWN LOCALLY AS ANTONIO MOUNTAIN. IT IS ABOUT 6 MILES AIRLINE SOUTHWEST OF PETALUMA, ABOUT 17 MILES AIRLINE SOUTH OF SANTA ROSA AND ABOUT 13 MILES AIRLINE NORTH NORTHEAST OF POINT REYES STATION. <p>THE STATION IS 9.5 FEET EAST OF A FENCELINE THAT GOES OVER THE TOP OF THE HIGHEST POINT OF THE MOUNTAIN. IT IS A STANDARD STATION DISK THAT IS SET IN A DRILL HOLE IN A BOULDER THAT PROJECTS 2 INCHES ABOVE THE GROUND. THE DISK IS STAMPED ANTONIO 1929 AND IS SET AS DESCRIBED IN NOTE 4. <p>REFERENCE MARK NUMBER ONE IS 39 FEET WEST OF THE FENCELINE. IT IS A STANDARD REFERENCE MARK DISK THAT IS SET IN A DRILL HOLE IN OUTCROPPING ROCK THAT PROJECTS 3 INCHES ABOVE THE GROUND. THE DISK IS STAMPED ANTONIO NO 1 1929 AND IS SET AS DESCRIBED IN NOTE 12A. <p>REFERENCE MARK NUMBER TWO IS 15 FEET WEST OF THE FENCELINE. IT IS A STANDARD REFERENCE MARK DISK THAT IS SET IN A DRILL HOLE IN OUTCROPPING ROCK THAT PROJECTS ABOUT 1 INCH ABOVE THE GROUND. THE DISK IS STAMPED ANTONIO NO 2 1929 AND IS SET AS DESCRIBED IN NOTE 12A. <p>THE AZIMUTH MARK IS A STANDARD USGS STATION DISK THAT IS ON THE SUMMIT OF THE SECOND HIGH HILL TO THE SOUTH OF THE STATION AND ON THE SAME RIDGE AS THE STATION. THE DISK IS STAMPED CALIFORNIA 1110 (FEET) (DATUM) VA AND IS SET IN A DRILL HOLE IN THE SLANTING SIDE OF A BURIED BOULDER THAT PROJECTS ABOUT 8 INCHES ABOVE THE GROUND. IT IS 100 FEET NORTHWEST OF A WIRE FENCE AND 105 FEET SOUTH OF THE SOUTH EDGE OF SOME TALL BRUSH. TO REACH THE MARK FROM THE STATION PACK SOUTH AND SOUTHWEST ALONG THE CREST OF THE RIDGE TO THE SUMMIT OF THE SECOND HIGH HILL AND THE MARK AS DESCRIBED. <p>TO REACH THE STATION FROM THE INTERSECTION OF WESTERN AVENUE AND MAIN STREET IN PETALUMA GO WEST ON WESTERN AVENUE FOR 1.9 MILES TO A PAVED FORK. TAKE THE LEFT FORK AND GO 3.7 MILES TO A PAVED T-ROAD RIGHT. KEEP STRAIGHT AHEAD AND GO 1.9 MILES TO A SUMMIT AND A BOARD GATE ON THE RIGHT. FROM THIS POINT PACK NORTHWEST THROUGH THE PASTURE ALONG A TRACK ROAD FOR ABOUT 0.5 MILE TO A WIRE GATE. FROM THE GATE FOLLOW THE STOCK TRAIL TO THE SUMMIT OF THE RIDGE THEN FOLLOW THE RIDGE DOWN INTO A SADDLE AND THEN UP THE STEEP HILL SIDE TO THE SUMMIT AND THE STATION AS DESCRIBED. <p> <h2>STATION RECOVERY (1959) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1959 (JCM) THE STATION MARK, REFERENCE MARKS, AND USGS MARK (AZIMUTH MARK) WERE RECOVERED IN GOOD AND FAIR CONDITION AS DESCRIBED IN 1949 AND THE 1949 DESCRIPTION IS ADEQUATE WITH THE FOLLOWING ADDITIONS-- <p>1. THE STATION MARK WAS RESTAMPED ANTONIO 1930, REFERENCE MARK NUMBER 1 WAS RESTAMPED ANTONIO NO 1 1930 AND REFERENCE MARK NUMBER 2 WAS RESTAMPED ANTONIO NO 2 1930 ON THIS DATE. <p>2. TO REACH THE STATION FROM THE INTERSECTION OF WESTERN AVENUE AND PETALUMA BOULEVARD IN PETALUMA GO SOUTHWEST ON WESTERN AVENUE 1.9 MILE TO A FORK. TAKE THE LEFT FORK AND GO SOUTH AND SOUTHWEST 3.7 MILES TO A PAVED SIDE ROAD ON THE RIGHT CONTINUE STRAIGHT AHEAD SOUTHWEST 1.9 MILES TO A GATE ON THE RIGHT AT THE SUMMIT OF A GRADE. TURN RIGHT, PASS THROUGH THE GATE, AND GO WEST-NORTHWEST 0.7 MILE TO THE END OF THE ROAD IN A SADDLE. PACK NORTH ABOUT 1/3 MILE TO THE TOP OF A HILL AND THE AZIMUTH MARK. PACK NORTHEAST AND NORTH ALONG THE WEST SIDE OF A FENCE LINE ON THE CREST OF THE RIDGE ABOUT 3/4 MILE TO THE HIGHEST POINT AND THE STATION. <p>NOTE--IN WET WEATHER IT WILL BE NECESSARY TO PACK TO THE STATION FROM THE GATE AT THE SUMMIT OF THE GRADE MENTIONED ABOVE. IN DRY WEATHER A TRUCK WITH 4-WHEEL DRIVE CAN BE DRIVEN ALONG THE CREST OF THE RIDGE TO A SADDLE ABOUT 1/5 MILE SOUTH OF THE STATION. A JEEP CAN BE DRIVEN PAST THE SADDLE AND ALL THE WAY TO THE STATION. <p> <h2>STATION RECOVERY (1960) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1960 (OSR) ALL MARKS RECOVERED AS DESCRIBED IN GOOD CONDITION. A NEW DESCRIPTION TO REACH THE STATION FOLLOWS. TO REACH FROM THE INTERSECTION OF WESTERN AVENUE AND PETALUMA BOULEVARD IN PETALUMA, GO SOUTHERLY ON WESTERN AVENUE FOR 1.9 MILES TO A MACADAM SIDE ROAD LEFT, TURN LEFT AND GO SOUTH AND WEST ON CHILENO YY ROAD FOR 4.0 MILES TO A SIDE ROAD RIGHT, TURN RIGHT AND GO NORTH ON THE CHILENO VALLEY ROAD FOR 2.3 MILES TO A BOARD GATE ON THE LEFT JUST AFTER CROSSING A CONCRETE BRIDGE, TURN LEFT THROUGH THE GATE AND GO WESTERLY ON TRACK ROAD, UP CANYON, FOR 0.8 MILE TO A FORK AND AN OLD SHACK ON THE LEFT, TURN LEFT AND GO 0.2 MILE TO A FORK, TURN LEFT AND GO 0.9 MILE TO A FENCE CORNER ON THE RIGHT (AT TOP OF HILL), BEAR LEFT AND FOLLOW ALONG LEFT SIDE OF FENCE FOR 0.1 MILE TO THE AZIMUTH MARK ON THE LEFT, CONTINUE ALONG LEFT SIDE OF FENCE FOR 0.5 MILE TO THE TOP OF THE HIGHEST HILL AND THE STATION. AF8690AZMOhttp://www.geocaching.com/mark/details.asp?PID=AF8690AZMOGeocacheGeocacheAZMONOSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>AZMO</h1> <b> PID </b> AF8690 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> SAN QUENTIN (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1992)</b> 37 53 44.09100(N) 122 29 20.85149(W) ADJUSTED <br> <b> NAVD 88 </b> 4. (meters) 13. (feet) SCALED <br> <hr> <b> EPOCH DATE </b> 1991.35 <br> <b> LAPLACE CORR</b> 0.50 (seconds) DEFLEC99 <br> <b> GEOID HEIGHT</b> -32.36 (meters) GEOID03 <br> <p> <b> HORZ ORDER </b> THIRD <br> <p>The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in April 1998. The horizontal coordinates are valid at the epoch date displayed above. The epoch date for horizontal control is a decimal equivalence of Year/Month/Day. <p>The orthometric height was scaled from a topographic map. <p>The Laplace correction was computed from DEFLEC99 derived deflections. <p>The geoid height was determined by GEOID03. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td>Units</td><td>Scale Fact</td><td>r Converg.</td></tr><tr><td>SPC CA 3 </td><td> 656,742.596 1</td><td>825,067.793</td><td> MT </td><td>0.99993235</td><td> -1 ' 13 04.1"</td></tr><tr><td>SPC CA 3 </td><td>2,154,663.00 5</td><td>987,743.25 </td><td> sFT </td><td>0.99993235</td><td> -1 ' 13 04.1"</td></tr><tr><td>UTM 10 </td><td>4,194,352.600 </td><td>544,917.095</td><td> MT </td><td>0.99962485</td><td> +0 ' 18 49.7"</td></tr> </table> <p> <b> </b> Elev Factor x Scale Factor = Combined Factor <br> <b>SPC CA 3 </b> 1.00000438 x 0.99993235 = 0.99993673 <br> <b>UTM 10 </b> 1.00000438 x 0.99962485 = 0.99962923 <br> <p> <h2>Superseded Survey Control</h2>
<p>No superseded survey control is available for this station. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEG4491794353(NAD 83) <br>MARKER: DD = SURVEY DISK <br>MAGNETIC: N = NO MAGNETIC MATERIAL <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1978 </td><td>MONUMENTED </td><td>NOS</td></tr><tr><td>20041229</td><td>MARK NOT FOUND </td><td>INDIV</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL OCEAN SERVICE 1978 (JPR) THE STATION IS LOCATED ON THE SHORELINE OF SAN FRANCISCO BAY AT THE NORTH END OF THAT PORTION OF RICHARDSON BAY LYING BETWEEN TIBURON PENINSULA AND STRAWBERRY POINT. TO REACH FROM THE NORTHBOUND LANE OF U.S. HIGHWAY 101 JUST SOUTH OF ITS JUNCTION WITH CALIFORNIA HIGHWAY 131 (TIBURON BLVD), EXIT RIGHT AND PROCEED EASTERLY ON HIGHWAY 131 FOR ABOUT 1.5 MILES TO THE SECOND JUNCTION OF HIGHWAY 131 AND GREENWOOD BEACH ROAD. TURN RIGHT ON THE LATTER AND PROCEED FOR ABOUT 0.05 MILES TO A DIRT ROAD ON THE LEFT THAT FOLLOWS THE SHORELINE OF RICHARDSON BAY THIS ROAD LEADS TO THE RICHARDSON BAY SANITARY DISTRICT TRESTLE GLEN SEWAGE TREATMENT PLANT. TURN ONTO THIS ROAD AND FOLLOW IT FOR ABOUT 0.05 MILES TO A POINT JUST PAST A DRAINAGE DITCH. PARK HERE AND HIKE UP AN EMBANKMENT BETWEEN THE ROAD AND THE SHORELINE TO A GRASSY AREA AND THE STATION SITE. THE STATION IS A STANDARD NATIONAL OCEAN SURVEY DISK STAMPED---AZMO 1978---SET INTO THE TOP OF A SQUARE CONCRETE MONUMENT 9-INCHES ON SIDE, FLUSH WITH GROUND. THE DISK IS 25 METERS SOUTH OF THE CENTER OF THE DIRT ROAD, 20 METERS EAST OF THE DRAINAGE DITCH AND 3 METERS NORTWEST AND 2 METERS ABOVE THE MEAN HIGHWATER LINE IN THE AREA. REFERENCE MARK 1 IS A STANDARD NATIONAL OCEAN SURVEY DISK STAMPED---AZMO RM 1 1978---SET INTO THE TOP OF A SQUARE CONCRETE MONUMENT 9-INCHES ON SIDE, FLUSH WITH THE GROUND. THE DISK IS 15 METERS EAST OF THE DRAINAGE DITCH AND 5 METERS NORTHWEST FROM THE MEAN HIGH WATER LINE AND 0.25 METER LOWER IN ELEVATION THAN THE STATION. REFERENCE MARK 2 IS A STANDARD NATIONAL OCEAN SURVEY DISK STAMPED---AZMO RM 2 1978---SET INTO THE TOP OF A SQUARE CONCRETE MONUMENT 9-INCHES ON SIDE, FLUSH WITH GROUND. THE DISK IS 25 METERS EAST OF THE DRAINAGE DITCH AND 7 METERS NORTHWEST OF THE MEAN HIGH WATER LINE AND 1/2 METER LOWER IN ELEVATION THAN THE STATION. DESCRIBED BY S.M. MILLER <p> <h2>STATION RECOVERY (2004) </h2> <p>RECOVERY NOTE BY INDIVIDUAL CONTRIBUTORS 2004 (HRK) MARK PROBABLY DESTROYED. SEARCHED FOR WITH GPS STAKE-OUT AS PART OF AN RTK SURVEY, AFTER ALREADY CALIBRATED ON 3 FOUND PTS. HT3524B 1393http://www.geocaching.com/mark/details.asp?PID=HT3524B 1393GeocacheGeocacheB 1393NGSNGS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>B 1393</h1> <b> PID </b> HT3524 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> SAN RAFAEL (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 58 26. (N) 122 31 33. (W) SCALED <br> <b> NAVD 88 </b> 8.018 (meters) 26.31 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.18 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 8.013 (meters) 26.29 (feet) COMP <br> <b> MODELED GRAV</b> 979,997.6 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS II <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991. <p>The geoid height was determined by GEOID03. <p>The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.). <p>The modeled gravity was interpolated from observed gravity values. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 665,500. </td><td> 1,822,030. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (10/21/93) 7.202 (m) 23.63 (f) ADJUSTED 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH416030(NAD 83) <br>MARKER: I = METAL ROD <br>SETTING: 49 = STAINLESS STEEL ROD W/O SLEEVE (10 FT.+) <br>SP_SET: STAINLESS STEEL ROD <br>STAMPING: B 1393 1987 <br>MARK LOGO: NGS <br>PROJECTION: FLUSH <br>STABILITY: A = MOST RELIABLE AND EXPECTED TO HOLD <br>STABILITY: POSITION/ELEVATION WELL <br>SATELLITE: THE SITE LOCATION WAS REPORTED AS NOT SUITABLE FOR <br>SATELLITE: SATELLITE OBSERVATIONS - September 29, 1988 <br>ROD/PIPE-DEPTH: 4.3 meters <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1987 </td><td>MONUMENTED </td><td>NGS</td></tr><tr><td>19880929</td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1987 IN SAN RAFAEL. IN SAN RAFAEL, AT 900 FIFTH AVENUE, 11.5 M (37.7 FT) EAST OF THE EXTENDED CENTER OF LOOTEAS PLACE AND THE CENTER OF A DRIVEWAY LEADING INTO A PUBLIC PARKING LOT, 8.9 M (29.2 FT) NORTH OF THE CENTERLINE OF THE AVENUE, 4.5 M (14.8 FT) SOUTHWEST OF THE WEST CORNER OF A BUILDING AT 900 FIFTH AVENUE, 0.8 M (2.6 FT) NORTHEAST OF THE SOUTHEAST CORNER OF A BRICK FLOWER BOX, AND 0.3 M (1.0 FT) EAST OF THE EAST END OF A BRICK FLOWER BOX. NOTE--ACCESS TO DATUM POINT IS HAD THROUGH A 5-INCH LOGO CAP. THE MARK IS 0.3 M ABOVE THE AVENUE. <p> <h2>STATION RECOVERY (1988) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 RECOVERED IN GOOD CONDITION. JT9488B 1395http://www.geocaching.com/mark/details.asp?PID=JT9488B 1395GeocacheGeocacheB 1395NGSNGS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>B 1395</h1> <b> PID </b> JT9488 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> INVERNESS (1976) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 38 04 33. (N) 122 48 12. (W) SCALED <br> <b> NAVD 88 </b> 37.446 (meters) 122.85 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.13 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 37.423 (meters) 122.78 (feet) COMP <br> <b> MODELED GRAV</b> 980,013.8 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS II <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991. <p>The geoid height was determined by GEOID03. <p>The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.). <p>The modeled gravity was interpolated from observed gravity values. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 3 </td><td> 677,380. </td><td> 1,797,930. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (12/02/92) 36.633 (m) 120.19 (f) ADJUSTED 1 2 <br>
<p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH172142(NAD 83) <br>MARKER: I = METAL ROD <br>SETTING: 49 = STAINLESS STEEL ROD W/O SLEEVE (10 FT.+) <br>SP_SET: STAINLESS STEEL ROD <br>STAMPING: B 1395 1987 <br>MARK LOGO: NGS <br>PROJECTION: FLUSH <br>STABILITY: A = MOST RELIABLE AND EXPECTED TO HOLD <br>STABILITY: POSITION/ELEVATION WELL <br>ROD/PIPE-DEPTH: 4.3 meters <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1987 </td><td>MONUMENTED </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1987 1.2 KM (0.75 MI) NE FROM POINT REYES STATION. 1.2 KM (0.75 MI) NORTHWESTERLY ALONG STATE HIGHWAY 1 FROM THE POST OFFICE IN POINT REYES STATION, 30.0 M (98.4 FT) SOUTHEAST OF THE CENTER OF A GRAVELED DRIVE LEADING NORTHEAST TO HOUSE NUMBER 11820, 22.4 M (73.5 FT) NORTHWEST OF THE CENTER OF A DRIVEWAY LEADING NORTHWEST TO HOUSE NUMBER 11780, 16.8 M (55.1 FT) NORTH OF A UTILITY POLE WITH TWO GUY WIRES, AND 7.9 M (25.9 FT) SOUTHWEST OF THE CENTERLINE OF THE HIGHWAY. NOTE--ACCESS TO DATUM POINT IS HAD THROUGH A 5-INCH LOGO CAP. THE MARK IS 0.3 METERS NE FROM A WITNESS POST AND FENCE THE MARK IS 0.3 M BELOW THE HIGHWAY. JT9479B 1396http://www.geocaching.com/mark/details.asp?PID=JT9479B 1396GeocacheGeocacheB 1396NGSNGS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>B 1396</h1> <b> PID </b> JT9479 <br> <b> STATE/COUNTY</b> CA/MARIN <br> <b> USGS QUAD </b> TOMALES (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 38 11 33. (N) 122 55 03. (W) SCALED <br> <b> NAVD 88 </b> 20.299 (meters) 66.60 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.05 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 20.287 (meters) 66.56 (feet) COMP <br> <b> MODELED GRAV</b> 980,018.1 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS II <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991. <p>The geoid height was determined by GEOID03. <p>The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.). <p>The modeled gravity was interpolated from observed gravity values. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr>