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The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the NGVD 29 superseded value.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Superseded Survey Control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Superseded values are not recommended for survey control.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 See file dsdata.txt to determine how the superseded data were derived.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>