Benchmark file generated by bmgpxbmgpx by Ron Parkerbmgpx@parkrrrr.comHT0754127 F C OF SFhttp://www.geocaching.com/mark/details.asp?PID=HT0754127 F C OF SFGeocacheGeocache127 F C OF SFCA3290Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>127 F C OF SF</h1> <b> PID </b> HT0754 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 46 21. (N) 122 24 09. (W) SCALED <br> <b> NAVD 88 </b> 4.54 (+/-2cm) 14.9 (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The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the NGVD 29 superseded value.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> 642,930. </td><td> 1,832,410. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/92) 3.710 (m) 12.17 (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Superseded values are not recommended for survey control.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 See file dsdata.txt to determine how the superseded data were derived.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: 10SEG526807(NAD 83) <br>MARKER: T = CHISELED TRIANGLE <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>CA3290</td></tr><tr><td>1956 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1956 AT SAN FRANCISCO. AT SAN FRANCISCO, ALONG SEVENTH STREET, BETWEEN KING AND TOWNSEND STREETS, AT A THREE STORY BRICK BUILDING OCCUPIED BY BAKER AND HAMILTON, ON TOP OF THE NORTHWEST END OF THE BOTTOM STEP OF THE MAIN ENTRANCE, 125 FEET SOUTHWEST OF THE CENTER LINE OF TOWNSEND STREET, 0.5 FOOT SOUTHEAST OF THE SOUTHEAST END OF THE BRICK WALL AT THE NORTHEAST DOOR, 0.7 FOOT HIGHER THAN THE SIDEWALK, AND ABOUT 1 FOOT HIGHER THAN THE STREET. HT225933 USAhttp://www.geocaching.com/mark/details.asp?PID=HT225933 USAGeocacheGeocache33 USAUSAUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>33 USA</h1> <b> PID </b> HT2259 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 47 54. (N) 122 28 08. (W) SCALED <br> <b> NAVD 88 </b> 51.430 (meters) 168.73 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.54 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 51.396 (meters) 168.62 (feet) COMP <br> <b> MODELED GRAV</b> 979,969.4 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS I <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> 645,910. </td><td> 1,826,620. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (10/21/93) 50.600 (m) 166.01 (f) ADJUSTED 1 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: 10SEG467835(NAD 83) <br>MARKER: DD = SURVEY DISK <br>SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT <br>SP_SET: CONCRETE POST <br>STAMPING: 33 1961 <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>1961 </td><td>MONUMENTED </td><td>USA</td></tr><tr><td>1977 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1977 IN SAN FRANCISCO. IN SAN FRANCISCO, AT THE PRESIDIO, 150 FEET NORTH OF THE ENTRANCE TO FORT WINFIELD SCOTT, 15 FEET EAST OF THE CENTER LINE OF PARK BLVD, AND 1 FOOT EAST OF THE EAST CURB. HT06164http://www.geocaching.com/mark/details.asp?PID=HT06164GeocacheGeocache4CGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <b> TIDAL BM </b> This is a Tidal Bench Mark. <br> <h1>4</h1> <b> PID </b> HT0616 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> HUNTERS POINT (1993) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 43 45. (N) 122 21 31. (W) SCALED <br> <b> NAVD 88 </b> 4.54 (+/-2cm) 14.9 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -32.51 (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 8100 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> 638,040. </td><td> 1,836,180. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/92) 3.720 (m) 12.20 (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: 10SEG565759(NAD 83) <br>MARKER: DB = BENCH MARK DISK <br>SETTING: 30 = SET IN A LIGHT STRUCTURE <br>SP_SET: PLATFORM <br>STAMPING: 4 1941 <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>1941 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1956 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1956 AT HUNTERS POINT. AT HUNTERS POINT, AT THEH SAN FRANCISCO NAVAL SHIPYARDS, AT THE NORTHEAST CORNER OF A LARGE CONCRETE AND METAL MACHINE SHOP BUILDING NO. 231, IN THE TOP OF THE SOUTHEAST CORNER OF THE CONCRETE LOADING PLATFORM ON THE NORTH SIDE AND AT THE NORTHEAST CORNER OF THE BUILDING, 96.0 FEET SOUTH OF THE SOUTH SIDE OF DRY DOCK NO. 2, 0.5 FOOT NORTH OF THE NORTH WALL, AND ABOUT 3 FEET HIGHER THAN THE ASPHALT. HT073340 Chttp://www.geocaching.com/mark/details.asp?PID=HT073340 CGeocacheGeocache40 CCGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>40 C</h1> <b> PID </b> HT0733 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 47 44. (N) 122 24 12. (W) SCALED <br> <b> NAVD 88 </b> 5.30 (+/-2cm) 17.4 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -32.46 (meters) GEOID03 <br> <p> <b> VERT ORDER </b> FIRST CLASS I (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> 645,490. </td><td> 1,832,390. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/??) 4.468 (m) 14.66 (f) ADJUSTED 1 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: 10SEG525833(NAD 83) <br>MARKER: Z = SEE DESCRIPTION <br>SETTING: 36 = SET IN A MASSIVE STRUCTURE <br>SP_SET: STEP <br>STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL <br>SATELLITE: THE SITE LOCATION WAS REPORTED AS NOT SUITABLE FOR <br>SATELLITE: SATELLITE OBSERVATIONS - September 20, 1988 <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>1952 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1969 </td><td>GOOD </td><td>NGS</td></tr><tr><td>19880920</td><td>GOOD </td><td>NGS</td></tr><tr><td>19971118</td><td>GOOD </td><td>USPSQD</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1952 AT SAN FRANCISCO. AT SAN FRANCISCO, AT THE NORTHEAST CORNER OF MONTGOMERY AND WASHINGTON STREETS, AT THE ENTRANCE TO 700 MONTGOMERY BUILDING, A 3 1/2-INCH CIRCLE CIRCUMSCRIBING A 2-INCH TRIANGLE CHISELED ON THE TOP OF THE SOUTHWEST CORNER OF THE GRANITE STEP, 43 FEET EAST OF THE SOUTHWEST CORNER OF THE BUILDING, 9.7 FEET NORTH OF THE NORTH CURB OF WASHINGTON STREET, AND 0.4 FOOT ABOVE THE SIDEWALK. <p> <h2>STATION RECOVERY (1969) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1969 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1988) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1997) </h2> <p>RECOVERY NOTE BY US POWER SQUADRON 1997 RECOVERED IN GOOD CONDITION. HT06155http://www.geocaching.com/mark/details.asp?PID=HT06155GeocacheGeocache5CGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <b> TIDAL BM </b> This is a Tidal Bench Mark. <br> <h1>5</h1> <b> PID </b> HT0615 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> HUNTERS POINT (1993) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 43 45. (N) 122 21 30. (W) SCALED <br> <b> NAVD 88 </b> 4.56 (+/-2cm) 15.0 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -32.51 (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 8101 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> 638,040. </td><td> 1,836,200. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/92) 3.738 (m) 12.26 (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: 10SEG565759(NAD 83) <br>MARKER: DB = BENCH MARK DISK <br>SETTING: 36 = SET IN A MASSIVE STRUCTURE <br>SP_SET: BUILDING <br>STAMPING: 5 1941 <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>1941 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1956 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1956 AT HUNTERS POINT. AT HUNTERS POINT, AT THE SAN FRANCISCO NAVAL SHIPYARDS, ON THE SOUTH SIDE OF A LARGE CONCRETE AND METAL MACHINE SHOP BUILDING NO. 231, AT DOOR 16, IN THE TOP OF THE NORTHWEST CORNER OF THE CONCRETE LOADING PLATFORM, 6.2 FEET EAST OF THE EAST RAIL OF A RAILROAD TRACK LEADING THROUGH THE BUILDING, 0.5 FOOT SOUTH OF THE SOUTH WALL OF THE BUILDING, AND ABOUT 3 FEET HIGHER THAN THE ASPHALT. HT071354http://www.geocaching.com/mark/details.asp?PID=HT071354GeocacheGeocache54DODUSE Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>54</h1> <b> PID </b> HT0713 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 48 26. (N) 122 26 21. (W) SCALED <br> <b> NAVD 88 </b> 3.409 (meters) 11.18 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.49 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 3.407 (meters) 11.18 (feet) COMP <br> <b> MODELED GRAV</b> 979,978.8 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS I <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> 646,850. </td><td> 1,829,260. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (10/21/93) 2.578 (m) 8.46 (f) ADJUSTED 1 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: 10SEG493845(NAD 83) <br>MARKER: DD = SURVEY DISK <br>SETTING: 37 = SET IN A MASSIVE RETAINING WALL <br>SP_SET: SEAWALL <br>STAMPING: 54 1938 <br>MARK LOGO: USE <br>STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL <br>SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR <br>SATELLITE: SATELLITE OBSERVATIONS - September 16, 1988 <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1938 </td><td>MONUMENTED </td><td>DOD</td></tr><tr><td>1952 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1969 </td><td>GOOD </td><td>NGS</td></tr><tr><td>19880916</td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1952 AT SAN FRANCISCO. AT SAN FRANCISCO, AT MARINA PARK, IN THE TOP OF THE ROCK AND CONCRETE SEAWALL, 146.4 FEET NORTH OF THE NORTH CORNER OF THE WILLIAM CO. RALSTON MEMORIAL MONUMENT, 100.0 FEET NORTHEAST OF THE NORTHEAST SIDE OF A DRINKING FOUNTAIN, AND 2.1 FEET SOUTH OF THE NORTH EDGE OF THE SEAWALL. <p> <h2>STATION RECOVERY (1969) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1969 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1988) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 RECOVERED IN GOOD CONDITION. HT071455http://www.geocaching.com/mark/details.asp?PID=HT071455GeocacheGeocache55DODUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>55</h1> <b> PID </b> HT0714 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 48 19. (N) 122 25 56. (W) SCALED <br> <b> NAVD 88 </b> 7.38 (+/-2cm) 24.2 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -32.48 (meters) GEOID03 <br> <p> <b> VERT ORDER </b> FIRST CLASS I (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> 646,620. </td><td> 1,829,860. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/??) 6.548 (m) 21.48 (f) ADJUSTED 1 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: 10SEG499843(NAD 83) <br>MARKER: DD = SURVEY DISK <br>SETTING: 30 = SET IN A LIGHT STRUCTURE <br>SP_SET: SIDEWALK <br>STAMPING: 55 <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>1956 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1969 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1986 </td><td>MARK NOT FOUND </td><td>USPSQD</td></tr><tr><td>19881011</td><td>MARK NOT FOUND </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1956 AT SAN FRANCISCO. AT SAN FRANCISCO, AT THE WEST EDGE OF FORT MASON, AT THE T JUNCTION OF MARINA BOULEVARD AND LAGUNA STREET, AT THE ENTRANCE TO A TUNNEL, IN THE TOP OF THE CONCRETE SIDEWALK LEADING EAST UP A HILL TO FORT MASON, 66 FEET SOUTH OF THE CENTER OF ENTRANCE GATE 301 TO FORT MASON, 15.3 FEET EAST OF THE EAST CURB OF LAGUNA STREET, 0.6 FOOT SOUTH OF THE SOUTHWEST CORNER OF THE SOUTH CONCRETE WALL OF THE TUNNEL APPROACH, AND ABOUT 0.1 FOOT LOWER THAN THE SIDEWALK. <p> <h2>STATION RECOVERY (1969) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1969 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1986) </h2> <p>RECOVERY NOTE BY US POWER SQUADRON 1986 (GRB) MARK NOT FOUND. <p> <h2>STATION RECOVERY (1988) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 THE SIDEWALK HAS BEEN REMOVED. HT072056http://www.geocaching.com/mark/details.asp?PID=HT072056GeocacheGeocache56DODUSE Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>56</h1> <b> PID </b> HT0720 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 48 29. (N) 122 25 36. (W) SCALED <br> <b> NAVD 88 </b> 3.800 (meters) 12.47 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.48 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 3.798 (meters) 12.46 (feet) COMP <br> <b> MODELED GRAV</b> 979,981.1 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS I <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> 646,920. </td><td> 1,830,360. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/??) 2.966 (m) 9.73 (f) ADJUSTED 1 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: 10SEG504846(NAD 83) <br>MARKER: DD = SURVEY DISK <br>SETTING: 38 = SET IN THE ABUTMENT OR PIER OF A LARGE BRIDGE <br>SP_SET: PIER <br>STAMPING: 56 <br>MARK LOGO: USE <br>STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL <br>SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR <br>SATELLITE: SATELLITE OBSERVATIONS - September 19, 1988 <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>1952 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1969 </td><td>GOOD </td><td>NGS</td></tr><tr><td>19880919</td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1952 AT SAN FRANCISCO. AT SAN FRANCISCO, AT THE FOOT OF VAN NESS STREET, AT THE SOUTHWEST END OF MUNICIPAL PIER, IN THE TOP OF THE CONCRETE FLOOR OF THE PIER, 27 1/2 FEET EAST OF THE CENTER LINE OF THE PIER, 3.1 FEET NORTH OF THE SOUTH END, AND 2.0 FEET WEST OF THE EAST CONCRETE GUARD RAIL. <p> <h2>STATION RECOVERY (1969) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1969 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1988) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 RECOVERED IN GOOD CONDITION. HT072158http://www.geocaching.com/mark/details.asp?PID=HT072158GeocacheGeocache58DODUSE Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>58</h1> <b> PID </b> HT0721 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 48 27. (N) 122 25 19. (W) SCALED <br> <b> NAVD 88 </b> 3.563 (meters) 11.69 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.47 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 3.561 (meters) 11.68 (feet) COMP <br> <b> MODELED GRAV</b> 979,983.8 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS I <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> 646,850. </td><td> 1,830,770. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (10/21/93) 2.730 (m) 8.96 (f) ADJUSTED 1 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: 10SEG508846(NAD 83) <br>MARKER: DD = SURVEY DISK <br>SETTING: 31 = SET IN A PAVEMENT SUCH AS STREET, SIDEWALK, CURB, ETC. <br>SP_SET: SIDEWALK <br>STAMPING: 58 1939 <br>MARK LOGO: USE <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 19, 1988 <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1939 </td><td>MONUMENTED </td><td>DOD</td></tr><tr><td>1956 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1969 </td><td>GOOD </td><td>NGS</td></tr><tr><td>19880919</td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1956 AT SAN FRANCISCO. AT SAN FRANCISCO, ON JEFFERSON STREET, ABOUT 131 YARDS WEST OF THE JUNCTION OF HYDE STREET, IN THE TOP OF A CONCRETE SIDEWALK, 157.4 FEET SOUTHWEST OF THE SOUTHWEST CORNER OF THE SAN FRANCISCO ROWING CLUB BUILDING, 20 FEET SOUTH OF THE SECOND GRANITE LIGHT POLE (NO 2) SOUTHWEST OF THE ROWING CLUB BUILDING, 9 FEET NORTHWEST OF THE CENTER LINE OF THE PROLONGATION OF JEFFERSON STREET, 6.5 FEET SOUTHWEST OF A 10-INCH STEEL GUARDRAIL, 3.1 FEET NORTHWEST OF THE NORTHWEST RAIL OF A RAILROAD TRACK LEADING WEST TO FORT MASON, AND ABOUT LEVEL WITH THE STREET. <p> <h2>STATION RECOVERY (1969) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1969 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. DELETE--6.5 FEET SOUTHWEST OF A 10-INCH GUARDRAIL. ADD--10.9 M (35.8 FT) WEST OF A BARRICADE. HT07917 C OF SFhttp://www.geocaching.com/mark/details.asp?PID=HT07917 C OF SFGeocacheGeocache7 C OF SFCA3290Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>7 C OF SF</h1> <b> PID </b> HT0791 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 46 36. (N) 122 23 23. (W) SCALED <br> <b> NAVD 88 </b> 4.05 (+/-2cm) 13.3 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -32.47 (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> 643,370. </td><td> 1,833,540. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/92) 3.22 (m) 10.6 (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: 10SEG537812(NAD 83) <br>MARKER: DD = SURVEY DISK <br>SETTING: 30 = SET IN A LIGHT STRUCTURE <br>SP_SET: SIDEWALK <br>STAMPING: 7 <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>CA3290</td></tr><tr><td>1956 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1965 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1956 AT SAN FRANCISCO. AT SAN FRANCISCO, ALONG THIRD STREET, AT THE BRIDGE OVER CHINA BASIN, IN THE TOP OF THE CONCRETE SIDEWALK, 51.0 FEET SOUTH OF THE SOUTHEAST CORNER OF THE BRIDGE, 7.5 FEET EAST OF THE EAST CURB OF THIRD STREET, 1 1/2 FEET NORTHWEST OF A POWER LINE POLE WITH TWO GUY WIRES, 0.4 FOOT WEST OF A STEEL GUARD RAIL, AND ABOUT LEVEL WITH THE SIDEWALK. <p> <h2>STATION RECOVERY (1965) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1965 RECOVERED IN GOOD CONDITION. HT060681 A USEhttp://www.geocaching.com/mark/details.asp?PID=HT060681 A USEGeocacheGeocache81 A USEDODUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>81 A USE</h1> <b> PID </b> HT0606 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO SOUTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 44 42. (N) 122 23 13. (W) SCALED <br> <b> NAVD 88 </b> 3.45 (+/-2cm) 11.3 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -32.49 (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> 639,850. </td><td> 1,833,720. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/92) 2.620 (m) 8.60 (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: 10SEG540777(NAD 83) <br>MARKER: DD = SURVEY DISK <br>SETTING: 30 = SET IN A LIGHT STRUCTURE <br>SP_SET: CURB <br>STAMPING: 81 A 1939 HARBOR LINE <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>1939 </td><td>MONUMENTED </td><td>DOD</td></tr><tr><td>1956 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1965 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1988 </td><td>MARK NOT FOUND </td><td>USPSQD</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1956 AT SAN FRANCISCO. AT SAN FRANCISCO, AT THE T JUNCTION OF THIRD STREET AND BURKE AVENUE, IN THE TOP OF THE EAST CONCRETE CURB OF THIRD STREET, 13.5 FEET NORTH OF THE PROLONGATION OF THE NORTH CURB OF THE AVENUE, 9.3 FEET NORTHWEST OF THE SOUTHWEST CORNER OF THE H. MOFFAT BUILDING, AND 0.4 FOOT HIGHER THAN THE STREET. <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 US POWER SQUADRON 1988 (GLH) MARK NOT FOUND. HT060782 USEhttp://www.geocaching.com/mark/details.asp?PID=HT060782 USEGeocacheGeocache82 USEDODUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>82 USE</h1> <b> PID </b> HT0607 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO SOUTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 44 33. (N) 122 23 15. (W) SCALED <br> <b> NAVD 88 </b> 4.05 (+/-2cm) 13.3 (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> 639,570. </td><td> 1,833,660. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/92) 3.224 (m) 10.58 (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: 10SEG539774(NAD 83) <br>MARKER: DD = SURVEY DISK <br>SETTING: 30 = SET IN A LIGHT STRUCTURE <br>SP_SET: CURB <br>STAMPING: 82 1939 HARBOR LINE <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>1939 </td><td>MONUMENTED </td><td>DOD</td></tr><tr><td>1956 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1965 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1988 </td><td>MARK NOT FOUND </td><td>USPSQD</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1956 AT SAN FRANCISCO. AT SAN FRANCISCO, AT THE INTERSECTION OF THIRD STREET AND EVANS AVENUE, IN THE TOP OF THE EAST CONCRETE CURB OF THIRD STREET, 11.2 FEET SOUTHWEST OF THE SOUTHWEST CORNER OF THE W.M. TAAFFE COMPANY, INC. BUILDING, 9.3 FEET NORTH OF THE PROLONGATION OF THE NORTH CURB OF THE AVENUE, AND 0.6 FOOT HIGHER THAN THE STREET. <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 US POWER SQUADRON 1988 (GLH) MARK NOT FOUND. HT2256941 4290 J TIDALhttp://www.geocaching.com/mark/details.asp?PID=HT2256941 4290 J TIDALGeocacheGeocache941 4290 J TIDALNOSNOS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <b> TIDAL BM </b> This is a Tidal Bench Mark. <br> <h1>941 4290 J TIDAL</h1> <b> PID </b> HT2256 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 48 24. (N) 122 28 06. (W) SCALED <br> <b> NAVD 88 </b> 3.363 (meters) 11.03 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.53 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 3.361 (meters) 11.03 (feet) COMP <br> <b> MODELED GRAV</b> 979,982.2 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS I <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 977 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> 646,840. </td><td> 1,826,690. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (10/21/93) 2.535 (m) 8.32 (f) ADJUSTED 1 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: 10SEG468844(NAD 83) <br>MARKER: DJ = TIDAL STATION DISK <br>SETTING: 46 = COPPER-CLAD STEEL ROD W/O SLEEVE (10 FT.+) <br>SP_SET: COPPER-CLAD STEEL ROD <br>STAMPING: 4290 J 1976 <br>MARK LOGO: NOS <br>PROJECTION: PROJECTING 7 CENTIMETERS <br>STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL <br>SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR <br>SATELLITE: SATELLITE OBSERVATIONS - September 13, 1988 <br>ROD/PIPE-DEPTH: 14.6 meters <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1976 </td><td>MONUMENTED </td><td>NOS</td></tr><tr><td>1977 </td><td>GOOD </td><td>NGS</td></tr><tr><td>19880913</td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1977 IN SAN FRANCISCO. IN SAN FRANCISCO, AT THE PRESIDIO, MIDWAY BETWEEN THE FORT POINT COAST GUARD PIER AND THE ENGINEERS DOCK, 435 FEET WEST-NORTHWEST OF THE WEST END OF THE SEAWALL SURROUNDING THE COAST GUARD CREWS QUARTERS, 89 FEET SOUTHWEST OF THE SHOREWARD END OF THE OLD SEAPLANE RAMP, AND 2.5 FEET NORTH OF THE CHAINLINK FENCE SURROUNDING THE U.S. ARMY FIELD MAINTENANCE BUILDING NO 937. <p> <h2>STATION RECOVERY (1988) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 RECOVERED IN GOOD CONDITION. NEW DESCRIPTION FOLLOWS. IN SAN FRANCISCO, AT THE PRESIDIO, ON THE BEACH BETWEEN THE FORT POINT COAST GUARD WHARF AND THE ENGINEERS DOCK, 256.0 M (839.9 FT) SOUTHEAST OF THE ENGINEERS DOCK, 133.0 M (436.4 FT) NORTHWEST OF THE NORTHWEST END OF THE SEAWALL AROUND THE COAST GUARD HEADQUARTERS, 27.0 M (88.6 FT) SOUTHWEST OF THE SOUTH END OF AN ABANDONED SEAPLANE RAMP, 18.0 M (59.1 FT) SOUTHEAST OF THE SOUTH END OF A CONCRETE DRAIN PIPE, AND 0.8 M (2.6 FT) NORTH OF A WITNESS POST AND FENCE. NOTE--THE DISK IS ENCASED BY A 4-INCH PCV PIPE. ACCESS TO THE DISK IS THROUGH A 4-INCH SCREW PLUG. HT2255941 4290 K TIDALhttp://www.geocaching.com/mark/details.asp?PID=HT2255941 4290 K TIDALGeocacheGeocache941 4290 K TIDALNOSNOS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <b> TIDAL BM </b> This is a Tidal Bench Mark. <br> <h1>941 4290 K TIDAL</h1> <b> PID </b> HT2255 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 48 31. (N) 122 28 16. (W) SCALED <br> <b> NAVD 88 </b> 5.844 (meters) 19.17 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.53 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 5.840 (meters) 19.16 (feet) COMP <br> <b> MODELED GRAV</b> 979,981.3 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS I <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 978 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> 647,060. </td><td> 1,826,450. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (10/21/93) 5.021 (m) 16.47 (f) ADJUSTED 1 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: 10SEG465847(NAD 83) <br>MARKER: DJ = TIDAL STATION DISK <br>SETTING: 66 = SET IN ROCK OUTCROP <br>SP_SET: IN A DRILL HOLE IN BEDROCK <br>STAMPING: 4290 K 1976 <br>MARK LOGO: NOS <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 19, 1988 <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1976 </td><td>MONUMENTED </td><td>NOS</td></tr><tr><td>1977 </td><td>GOOD </td><td>NGS</td></tr><tr><td>19880919</td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1977 IN SAN FRANCISCO. IN SAN FRANCISCO, AT THE PRESIDIO, SET VERTICALLY IN BEDROCK ON THE SOUTH SIDE OF MARINE DRIVE, 79 FEET SOUTH-SOUTHWEST OF THE SOUTHEAST CORNER OF THE NATIONAL PARK SERVICE BUILDING NO T989, 48.2 FEET SOUTHWEST OF TIDAL 174, AND 8 FEET SOUTH OF THE ROAD CURB. <p> <h2>STATION RECOVERY (1988) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 IN SAN FRANCISCO, AT THE PRESIDIO, SET VERTICALLY IN THE NORTHEAST FACE OF AN EXPOSED AREA OF BEDROCK IN A ROAD CUT, 24.5 M (80.4 FT) SOUTHWEST OF THE SOUTH CORNER OF NATIONAL PARK SERVICE BUILDING NUMBER T 989, 5.9 M (19.4 FT) SOUTHWEST OF THE CENTERLINE OF MARINE DRIVE, AND 0.6 M (2.0 FT) ABOVE THE LEVEL OF THE DRIVE. HT2253941 4290 L TIDALhttp://www.geocaching.com/mark/details.asp?PID=HT2253941 4290 L TIDALGeocacheGeocache941 4290 L TIDALNOSNOS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <b> TIDAL BM </b> This is a Tidal Bench Mark. <br> <h1>941 4290 L TIDAL</h1> <b> PID </b> HT2253 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 48 32. (N) 122 28 18. (W) SCALED <br> <b> NAVD 88 </b> 6.635 (meters) 21.77 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.53 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 6.630 (meters) 21.75 (feet) COMP <br> <b> MODELED GRAV</b> 979,981.2 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS I <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 979 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> 647,090. </td><td> 1,826,400. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (10/21/93) 5.808 (m) 19.06 (f) ADJUSTED 1 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: 10SEG465847(NAD 83) <br>MARKER: DJ = TIDAL STATION DISK <br>SETTING: 80 = SET IN A BOULDER <br>SP_SET: IN DRILL HOLE IN A BOULDER <br>STAMPING: 4290 L 1976 <br>MARK LOGO: NOS <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 19, 1988 <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1976 </td><td>MONUMENTED </td><td>NOS</td></tr><tr><td>1977 </td><td>GOOD </td><td>NGS</td></tr><tr><td>19880919</td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1977 IN SAN FRANCISCO. IN SAN FRANCISCO , AT THE PRESIDIO, SET HORIZONTALLY IN BEDROCK ON THE SOUTH SIDE OF MARINE DRIVE, 375 FEET WEST OF THE NATIONAL PARK SERVICE BUILDING NO T989, 51.5 FEET SOUTHEAST OF THE EASTERN MOST CONCRETE AND STEEL SAFETY CHAIN STANCHION ON THE SEAWALL, AND 25.5 FEET FROM THE CENTER OF MARINE DRIVE. <p> <h2>STATION RECOVERY (1988) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 IN SAN FRANCISCO, AT THE PRESIDIO BUILDING NUMBER T 989, IN THE SOUTH END OF A 2 BY 3 FOOT BOULDER, 114.0 M (374.0 FT) WEST OF THE SOUTHWEST CORNER OF THE BUILDING, 15.7 M (51.5 FT) SOUTHEAST OF A POINT WHERE A SAFTY CABLE AND CHAIN MEET ALONG A SEA WALL, AND 7.8 M (25.6 FT) SOUTH OF THE CENTERLINE OF MARINE DRIVE. HT3538941 4290 M TIDALhttp://www.geocaching.com/mark/details.asp?PID=HT3538941 4290 M TIDALGeocacheGeocache941 4290 M TIDALNOSNOS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <b> TIDAL BM </b> This is a Tidal Bench Mark. <br> <h1>941 4290 M TIDAL</h1> <b> PID </b> HT3538 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 48 12. (N) 122 28 00. (W) SCALED <br> <b> NAVD 88 </b> 3.734 (meters) 12.25 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.53 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 3.731 (meters) 12.24 (feet) COMP <br> <b> MODELED GRAV</b> 979,981.6 (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 980 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> 646,470. </td><td> 1,826,830. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (10/21/93) 2.904 (m) 9.53 (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: 10SEG469841(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: CANNON FOUNDATION <br>STAMPING: 4290 M 1982 <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 NOT SUITABLE FOR <br>SATELLITE: SATELLITE OBSERVATIONS - September 14, 1988 <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1982 </td><td>MONUMENTED </td><td>NOS</td></tr><tr><td>19880914</td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1988 AT SAN FRANCISCO, AT THE PRESIDIO BUILDING NUMBER 650 (STILWELL HALL), AT CRISSY FIELD, IN THE NORTHWEST CORNER OF A 4 BY 8 FOOT CONCRETE FOUNDATION OF THE MOST WESTERLY 1 OF 2 CANNONS, 27.3 M (89.6 FT) SOUTH OF THE CENTERLINE OF MASON STREET, 6.1 M (20.0 FT) WEST OF THE WEST EDGE OF A SIDEWALK LEADING TO THE BUILDING, 0.3 M (1.0 FT) EAST OF THE WEST EDGE OF THE FOUNDATION, 0.2 M (0.7 FT) SOUTH OF THE NORTH EDGE OF THE FOUNDATION, AND 0.1 M (0.3 FT) ABOVE THE GROUND SURFACE. AE5209941 4290 N TIDALhttp://www.geocaching.com/mark/details.asp?PID=AE5209941 4290 N TIDALGeocacheGeocache941 4290 N TIDALNGSNOS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <b> TIDAL BM </b> This is a Tidal Bench Mark. <br> <h1>941 4290 N TIDAL</h1> <b> PID </b> AE5209 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1992)</b> 37 48 20.18835(N) 122 28 00.80134(W) ADJUSTED <br> <b> NAVD 88 </b> 3.669 (meters) 12.04 (feet) ADJUSTED <br> <hr> <b> EPOCH DATE </b> 1997.30 <br> <b> X </b> -2,708,572.272 (meters) COMP <br> <b> Y </b> -4,257,033.679 (meters) COMP <br> <b> Z </b> 3,888,401.269 (meters) COMP <br> <b> LAPLACE CORR</b> 2.73 (seconds) DEFLEC99 <br> <b> ELLIP HEIGHT</b> -28.87 (meters) (07/10/98) GPS OBS <br> <b> GEOID HEIGHT</b> -32.52 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 3.666 (meters) 12.03 (feet) COMP <br> <b> MODELED GRAV</b> 979,982.5 (mgal) NAVD 88 <br> <p> <b> HORZ ORDER </b> FIRST <br> <b> VERT ORDER </b> SECOND CLASS I <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 March 1999. <p>This Tidal Bench Mark is designated as VM 15436 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> 646,717.734 1</td><td>826,813.190</td><td> MT </td><td>0.99992963</td><td> -1 ' 12 15.1"</td></tr><tr><td>SPC CA 3 </td><td>2,121,773.10 5</td><td>993,469.61 </td><td> sFT </td><td>0.99992963</td><td> -1 ' 12 15.1"</td></tr><tr><td>UTM 10 </td><td>4,184,381.000 </td><td>546,929.150</td><td> MT </td><td>0.99962713</td><td> +0 ' 19 36.5"</td></tr> </table> <p> <b> </b> Elev Factor x Scale Factor = Combined Factor <br> <b>SPC CA 3 </b> 1.00000453 x 0.99992963 = 0.99993416 <br> <b>UTM 10 </b> 1.00000453 x 0.99962713 = 0.99963166 <br> <p> <h2>Superseded Survey Control</h2>
<p> <b> NAD 83(1992)</b> 37 48 20.18712(N) 122 28 00.80029(W) AD(1996.00) 1 <br> ELLIP H (06/12/98) -28.87 (m) GP(1996.00) 3 2 <br>
<b> NAD 83(1992)</b> 37 48 20.18634(N) 122 28 00.80006(W) AD(1995.42) 1 <br> ELLIP H (12/22/97) -28.82 (m) GP(1995.42) 4 1 <br>
NAVD 88 (07/10/98) 3.66 (m) 12.0 (f) LEVELING 3 <br>
NAVD 88 (12/22/97) 3.67 (m) 12.0 (f) LEVELING 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: 10SEG4692984381(NAD 83) <br>MARKER: DD = SURVEY DISK <br>SETTING: 37 = SET IN A MASSIVE RETAINING WALL <br>SP_SET: SEAWALL <br>STAMPING: 4290 N 1995 <br>MARK LOGO: NOS <br>PROJECTION: FLUSH <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 - May 07, 1998 <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1995 </td><td>MONUMENTED </td><td>NGS</td></tr><tr><td>19950915</td><td>GOOD </td><td>NGS</td></tr><tr><td>19980507</td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1995 (JDD) THE STATION IS SET ON THE PRESIDIO OF SAN FRANCISCO AT THE NORTH END OF SAN FRANCISCO.$TO REACH THE STATION FROM THE INTERSECTION OF MASON STREET AND THE END OF MARINA DRIVE AT THE WEST END OF THE SAN FRANCISCO MARINA, GO WEST ON MASON STREET FOR 0.9 MI (1.4 KM) TO A SIDE ROAD RIGHT, LIVINGSTON STREET. TURN RIGHT AND GO NORTH ON LIVINGSTON STREET FOR 0.1 MI (0.2 KM) TO A T-INTERSECTION, MARINE DRIVE. TURN LEFT AND GO WEST ON MARINE DRIVE FOR 0.1 MI (0.2 KM) TO A PAVED DRIVEWAY RIGHT, THE ENTRANCE TO THE NOAA NMFS FACILITY. TURN RIGHT AND GO NORTH ON THE DRIVEWAY FOR 0.05 MI (0.08 KM) WHERE THE DRIVE TURNS TO THE WEST. FOLLOW THE DRIVEWAY WEST FOR 0.05 MI (0.08 KM) TO THE ENTRANCE TO THE NOAA FACILITY ON THE LEFT AND THE STATION ON THE RIGHT IN THE CONCRETE SEAWALL.$THE STATION IS ABOUT 64 M (210.0 FT) EAST OF BENCH MARK 181 1945, ABOUT 30 M (98.4 FT) NORTHWEST OF BENCH MARK 180 1945, 20.8 M (68.2 FT) EAST OF A FLAG POLE, 19.3 M (63.3 FT) NORTHWEST OF THE NORTHEAST CORNER OF THE NOAA BUILDING, 17.0 M (55.8 FT) NORTH-NORTHEAST OF THE NORTHWEST CORNER OF THE BUILDING, 3.2 M (10.5 FT) WEST OF THE CENTERLINE OF A CONCRETE RAMP LEADING TO A WOODEN PIER, AND 0.17 M (0.56 FT) SOUTH OF THE NORTH FACE OF THE SEAWALL <p> <h2>STATION RECOVERY (1995) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1995 (JDD) RECOVERED AS DESCRIBED. <p> <h2>STATION RECOVERY (1998) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1998 (JDD) RECOVERED AS DESCRIBED. HT0694941 4290 TIDAL 164http://www.geocaching.com/mark/details.asp?PID=HT0694941 4290 TIDAL 164GeocacheGeocache941 4290 TIDAL 164CGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>941 4290 TIDAL 164</h1> <b> PID </b> HT0694 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 48 33. (N) 122 28 33. (W) SCALED <br> <b> NAVD 88 </b> 9.32 (+/-2cm) 30.6 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -32.53 (meters) GEOID03 <br> <p> <b> VERT ORDER </b> FIRST CLASS I (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> 647,130. </td><td> 1,826,030. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/??) 8.490 (m) 27.85 (f) ADJUSTED 1 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: 10SEG461847(NAD 83) <br>MARKER: B = BOLT <br>SETTING: 80 = SET IN A BOULDER <br>SP_SET: BOULDER <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>CGS</td></tr><tr><td>1952 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1969 </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 1952 AT SAN FRANCISCO. AT SAN FRANCISCO, AT THE PRESIDIO, AT FORT POINT, ABOUT 200 YARDS SOUTHEAST OF THE OLD FORT, ABOUT 76 YARDS SOUTHEAST OF AN ANGLE IN THE SEA WALL WHERE IT TURNS TO RUN TOWARD THE POINT, IN THE TOP OF A 10-FOOT GREY BOULDER, 67.0 FEET SOUTH OF THE SOUTH EDGE OF THE SEA WALL, 33.7 FEET SOUTH OF THE CENTER LINE OF MARINA DRIVE, 20.3 FEET NORTH OF BENCH MARK R 108, 3.0 FEET NORTH OF A DIM PATH LEADING UPHILL, AND ABOUT 13 FEET HIGHER THAN THE ROAD. <p> <h2>STATION RECOVERY (1969) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1969 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1988) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 MARK NOT FOUND. HT0711941 4290 TIDAL 165http://www.geocaching.com/mark/details.asp?PID=HT0711941 4290 TIDAL 165GeocacheGeocache941 4290 TIDAL 165CGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>941 4290 TIDAL 165</h1> <b> PID </b> HT0711 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 48 20. (N) 122 27 13. (W) SCALED <br> <b> NAVD 88 </b> 3.04 (+/-2cm) 10.0 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -32.51 (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> 646,690. </td><td> 1,827,980. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/92) 2.211 (m) 7.25 (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: 10SEG480843(NAD 83) <br>MARKER: B = BOLT <br>SETTING: 30 = SET IN A LIGHT STRUCTURE <br>SP_SET: WALL <br>STAMPING: USCS <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>1952 </td><td>GOOD </td><td>NGS</td></tr><tr><td>19881011</td><td>MARK NOT FOUND </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1952 AT SAN FRANCISCO. AT SAN FRANCISCO, AT THE PRESIDIO, AT THE NORTHEAST END OF CRISSY FIELD, THE TOP OF A COPPER BOLT SET VERTICALLY IN THE NORTHEAST SIDE OF THE CONCRETE WALL FORMING THE APPROACH TO PRESIDIO WHARF, 165.1 FEET NORTHWEST OF THE NORTH CORNER OF BUILDING NO. 259, 26.0 FEET SOUTHEAST OF WHERE THE WALL JOINS THE WHARF, 23 FEET NORTHEAST OF THE CENTER LINE OF THE APPROACH, 1.2 FEET LOWER THAN THE TOP OF THE WALL, AND DIRECTLY UNDER BENCH MARK TIDAL 166. <p> <h2>STATION RECOVERY (1988) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 THE WHARF AND BUILDING HAVE BEEN REMOVED. HT0710941 4290 TIDAL 166http://www.geocaching.com/mark/details.asp?PID=HT0710941 4290 TIDAL 166GeocacheGeocache941 4290 TIDAL 166CGSCGS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>941 4290 TIDAL 166</h1> <b> PID </b> HT0710 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1992)</b> 37 48 21.62120(N) 122 27 13.88747(W) ADJUSTED <br> <b> NAVD 88 </b> 3.387 (meters) 11.11 (feet) ADJUSTED <br> <hr> <b> EPOCH DATE </b> 1991.35 <br> <b> X </b> -2,707,589.337 (meters) COMP <br> <b> Y </b> -4,257,626.623 (meters) COMP <br> <b> Z </b> 3,888,436.037 (meters) COMP <br> <b> LAPLACE CORR</b> 2.37 (seconds) DEFLEC99 <br> <b> ELLIP HEIGHT</b> -29.09 (meters) (04/03/92) GPS OBS <br> <b> GEOID HEIGHT</b> -32.51 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 3.385 (meters) 11.11 (feet) COMP <br> <b> MODELED GRAV</b> 979,978.4 (mgal) NAVD 88 <br> <p> <b> HORZ ORDER </b> A <br> <b> VERT ORDER </b> FIRST CLASS II <br> <b> ELLP ORDER </b> FIRST CLASS I <br> <p>The horizontal coordinates were established by VLBI observations and local terrestrial surveys and adjusted by the National Geodetic Survey in April 1992. 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 September 1996. <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> 646,737.861 1</td><td>827,961.395</td><td> MT </td><td>0.99992964</td><td> -1 ' 11 46.4"</td></tr><tr><td>SPC CA 3 </td><td>2,121,839.13 5</td><td>997,236.68 </td><td> sFT </td><td>0.99992964</td><td> -1 ' 11 46.4"</td></tr><tr><td>UTM 10 </td><td>4,184,431.783 </td><td>548,076.061</td><td> MT </td><td>0.99962847</td><td> +0 ' 20 05.2"</td></tr> </table> <p> <b> </b> Elev Factor x Scale Factor = Combined Factor <br> <b>SPC CA 3 </b> 1.00000456 x 0.99992964 = 0.99993420 <br> <b>UTM 10 </b> 1.00000456 x 0.99962847 = 0.99963303 <br> <p> <h2>Superseded Survey Control</h2>
<p> <b> NAD 83(1986)</b> 37 48 21.61753(N) 122 27 13.88289(W) AD(1984.00) 2 <br> <b> NAD 27 </b> 37 48 21.87070(N) 122 27 09.97652(W) AD( ) 2 <br> NGVD 29 (??/??/92) 2.575 (m) 8.45 (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: 10SEG4807684432(NAD 83) <br>MARKER: B = BOLT <br>SETTING: 37 = SET IN A MASSIVE RETAINING WALL <br>SP_SET: SEAWALL <br>MARK LOGO: CGS <br>MAGNETIC: N = NO MAGNETIC MATERIAL <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>1956 </td><td>GOOD </td><td>NGS</td></tr><tr><td>19830315</td><td>GOOD </td><td>NGS</td></tr><tr><td>19881011</td><td>MARK NOT FOUND </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1956 AT SAN FRANCISCO. AT SAN FRANCISCO, AT THE PRESIDIO, AT THE NORTHEAST END OF CRISSY FIELD, IN THE TOP OF THE OLD CONCRETE WALL FORMING THE APPROACH TO PRESIDIO WHARF, 164.6 FEET NORTHWEST OF THE NORTH CORNER OF BUILDING NO. 259, 26.0 FEET SOUTHEAST OF WHERE THE WALL JOINS THE WHARF, 0.5 FOOT SOUTHWEST OF THE NORTHEAST EDGE OF THE WALL, AND 23 FEET NORTHEAST OF THE CENTER LINE OF THE APPROACH TO THE WHARF. <p> <h2>STATION RECOVERY (1983) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1983 (LDA) RECOVERED AS DESCRIBED. <p> <h2>STATION RECOVERY (1988) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 THE BUILDING AND WHARF HAVE BEEN REMOVED. HT0704941 4290 TIDAL 173http://www.geocaching.com/mark/details.asp?PID=HT0704941 4290 TIDAL 173GeocacheGeocache941 4290 TIDAL 173CGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <b> TIDAL BM </b> This is a Tidal Bench Mark. <br> <h1>941 4290 TIDAL 173</h1> <b> PID </b> HT0704 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 48 19. (N) 122 28 06. (W) SCALED <br> <b> NAVD 88 </b> 3.00 (+/-2cm) 9.8 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -32.53 (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 968 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> 646,680. </td><td> 1,826,690. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/92) 2.17 (m) 7.1 (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: 10SEG468843(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: BM 173 1925 <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>1925 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1952 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1965 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1977 </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 1952 AT SAN FRANCISCO. AT SAN FRANCISCO, AT THE PRESIDIO, AT THE SOUTHEAST CORNER OF THE YARD OF THE U.S. COAST GUARD STATION (FORT POINT STATION), 61.0 FEET SOUTHEAST OF THE SOUTHEAST CORNER OF THE CREWS QUARTERS, 17.0 FEET NORTH OF THE CENTER LINE OF MARINE DRIVE, 12.7 FEET NORTHEAST OF THE NORTHEAST CORNER OF AN IRON SEWER GRATING, 0.6 FEET WEST OF THE WEST EDGE OF A CONCRETE CURB, AND SET IN THE TOP OF A CONCRETE POST ABOUT 0.1 FOOT BELOW THE SURFACE OF THE GROUND. <p> <h2>STATION RECOVERY (1965) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1965 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1977) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1977 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1988) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 MARK NOT FOUND. HT0697941 4290 TIDAL 174http://www.geocaching.com/mark/details.asp?PID=HT0697941 4290 TIDAL 174GeocacheGeocache941 4290 TIDAL 174CGSCGS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <b> TIDAL BM </b> This is a Tidal Bench Mark. <br> <h1>941 4290 TIDAL 174</h1> <b> PID </b> HT0697 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 48 30. (N) 122 28 15. (W) SCALED <br> <b> NAVD 88 </b> 5.029 (meters) 16.50 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.53 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 5.026 (meters) 16.49 (feet) COMP <br> <b> MODELED GRAV</b> 979,981.4 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS I <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. WARNING-Repeat measurements at this control monument indicate possible vertical movement. <p>This Tidal Bench Mark is designated as VM 971 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> 647,030. </td><td> 1,826,470. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/??) 4.211 (m) 13.82 (f) ADJUSTED 1 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: 10SEG465846(NAD 83) <br>MARKER: DJ = TIDAL STATION DISK <br>SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT <br>SP_SET: CONCRETE POST <br>STAMPING: BM 174 1925 <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 13, 1988 <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1925 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1952 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1969 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1977 </td><td>GOOD </td><td>NGS</td></tr><tr><td>19880913</td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1952 AT SAN FRANCISCO. AT SAN FRANCISCO, AT THE PRESIDIO, ABOUT 125 FEET WEST OF THE PROLONGATION OF THE WEST LINE OF THE ENGINEERS DOCK WHERE IT CROSSES MARINE DRIVE, AT THE APPROXIMATE CENTER OF A Y JUNCTION FORMED BY MARINE DRIVE AND A ROAD LEADING SOUTHEAST TO FORT WINFIELD SCOTT, 42.7 FEET SOUTHWEST OF A FIRE PLUB, 28.3 FEET SOUTH OF THE SOUTH EDGE OF AN IRON MAN HOLE COVER, AND SET IN THE TOP OF A CONCRETE POST FLUSH WITH THE DRIVE. <p> <h2>STATION RECOVERY (1969) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1969 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1977) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1977 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--IN THE CENTER OF A 6.0 FOOT DIAMETER BRICK AND ROCK CIRCLE, 15.5 M (50.9 FT) SOUTH-SOUTHWEST OF THE SOUTH CORNER OF THE NATIONAL PARK SERVICE BUILDING NUMBER T989, AND 4.7 M (15.4 FT) NORTHEAST OF THE CENTERLINE OF MARINE DRIVE. HT0696941 4290 TIDAL 175http://www.geocaching.com/mark/details.asp?PID=HT0696941 4290 TIDAL 175GeocacheGeocache941 4290 TIDAL 175CGSCGS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <b> TIDAL BM </b> This is a Tidal Bench Mark. <br> <h1>941 4290 TIDAL 175</h1> <b> PID </b> HT0696 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 48 32. (N) 122 28 17. (W) SCALED <br> <b> NAVD 88 </b> 4.177 (meters) 13.70 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.53 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 4.174 (meters) 13.69 (feet) COMP <br> <b> MODELED GRAV</b> 979,981.3 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS I <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 1829 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> 647,090. </td><td> 1,826,430. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (10/21/93) 3.352 (m) 11.00 (f) ADJUSTED 1 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: 10SEG465847(NAD 83) <br>MARKER: DJ = TIDAL STATION DISK <br>SETTING: 37 = SET IN A MASSIVE RETAINING WALL <br>SP_SET: SEA WALL <br>STAMPING: BM 175 1925 <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 19, 1988 <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1925 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1952 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1969 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1977 </td><td>GOOD </td><td>NGS</td></tr><tr><td>19880919</td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1952 AT SAN FRANCISCO. AT SAN FRANCISCO, AT THE PRESIDIO, ON THE NORTH SIDE OF MARINE DRIVE BETWEEN THE ENGINEERS DOCK AND FORT POINT, IN THE TOP OF THE CONCRETE SEA WALL, 2.3 FEET SOUTH OF THE NORTH EDGE, ABOUT 400 FEET WEST OF THE PROLONGATION OF THE WEST LINE OF THE DOCK WHERE IT CROSSES THE DRIVE, 277.5 FEET WEST OF BENCH MARK TIDAL 174, 161.2 FEET WEST OF THE SOUTHWEST CORNER OF A WOVEN WIRE FENCE AROUND THE ENGINEERS SUPPLY YARD, 22.5 FEET NORTH OF THE CENTER LINE OF THE DRIVE, AND ABOUT LEVEL WITH THE DRIVE. <p> <h2>STATION RECOVERY (1969) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1969 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1977) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1977 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 EXCEPTION. ADD--28.8 M (94.5 FT) WEST OF AN IRON GATE. HT0705941 4290 TIDAL 176http://www.geocaching.com/mark/details.asp?PID=HT0705941 4290 TIDAL 176GeocacheGeocache941 4290 TIDAL 176CGSCGS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <b> TIDAL BM </b> This is a Tidal Bench Mark. <br> <h1>941 4290 TIDAL 176</h1> <b> PID </b> HT0705 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 48 13. (N) 122 28 02. (W) SCALED <br> <b> NAVD 88 </b> 4.833 (meters) 15.86 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.53 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 4.830 (meters) 15.85 (feet) COMP <br> <b> MODELED GRAV</b> 979,982.4 (mgal) NAVD 88 <br> <b> OBS GRAVITY </b> 979,982.3 (mgal) GRAV_OBS <br> <p> <b> VERT ORDER </b> FIRST CLASS I <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 972 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. The observed gravity was obtained from relative gravimeter ties to the IGSN71 gravity network. <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> 646,500. </td><td> 1,826,780. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/??) 4.004 (m) 13.14 (f) ADJUSTED 1 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: 10SEG469841(NAD 83) <br>MARKER: DJ = TIDAL STATION DISK <br>SETTING: 31 = SET IN A PAVEMENT SUCH AS STREET, SIDEWALK, CURB, ETC. <br>SP_SET: STEP <br>STAMPING: BM 176 1925 <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 14, 1988 <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1925 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1952 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1969 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1977 </td><td>GOOD </td><td>NGS</td></tr><tr><td>19880914</td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1952 AT SAN FRANCISCO. AT SAN FRANCISCO, AT THE PRESIDIO, AT THE JUNCTION OF MASON AND CRISSY FIELD AVENUES, AT THE MAIN ENTRANCE TO THE CALIFORNIA MILITARY DISTRICT HEADQUARTERS BUILDING, IN THE TOP OF THE WEST END OF THE LOWEST CONCRETE STEP, 50.0 FEET SOUTH OF THE CENTER LINE OF MASON AVENUE, AND ABOUT 4 FEET HIGHER THAN THE AVENUE. <p> <h2>STATION RECOVERY (1969) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1969 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1977) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1977 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 EXCEPTION. ADD--AT BUILDING NUMBER 651. HT0702941 4290 TIDAL 180http://www.geocaching.com/mark/details.asp?PID=HT0702941 4290 TIDAL 180GeocacheGeocache941 4290 TIDAL 180NOSCGS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <b> TIDAL BM </b> This is a Tidal Bench Mark. <br> <h1>941 4290 TIDAL 180</h1> <b> PID </b> HT0702 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 48 18. (N) 122 28 02. (W) SCALED <br> <b> NAVD 88 </b> 3.996 (meters) 13.11 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.53 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 3.994 (meters) 13.10 (feet) COMP <br> <b> MODELED GRAV</b> 979,982.4 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS I <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 967 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> 646,650. </td><td> 1,826,780. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/??) 3.169 (m) 10.40 (f) ADJUSTED 1 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: 10SEG469843(NAD 83) <br>MARKER: DJ = TIDAL STATION DISK <br>SETTING: 37 = SET IN A MASSIVE RETAINING WALL <br>SP_SET: SEAWALL <br>STAMPING: 180 1936 <br>MARK LOGO: CGS <br>PROJECTION: FLUSH <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>1936 </td><td>MONUMENTED </td><td>NOS</td></tr><tr><td>1969 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1977 </td><td>GOOD </td><td>NGS</td></tr><tr><td>19880913</td><td>GOOD </td><td>NGS</td></tr><tr><td>19950915</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 OCEAN SERVICE 1936 AT SAN FRANCISCO. AT SAN FRANCISCO, AT THE PRESIDIO, ON THE PROPERTY OF THE COAST GUARD STATION, IN THE TOP OF THE CONCRETE SEAWALL, 96.3 FEET NORTHEAST OF BENCH MARK TIDAL 173, 50.2 FEET SOUTHEAST OF THE EAST CORNER OF THE CREWS QUARTERS, 19.9 FEET SOUTHWEST OF THE SOUTHWEST SIDE OF A GARAGE BUILDING, 3.7 FEET NORTH OF AN ANGLE IN THE WALL, AND 3 FEET HIGHER THAN THE GROUND. <p> <h2>STATION RECOVERY (1969) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1969 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1977) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1977 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1988) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1995) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1995 (JDD) RECOVERED AS DESCRIBED. <p> <h2>STATION RECOVERY (1995) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1995 (JDD) RECOVERED AS DESCRIBED. HT0701941 4290 TIDAL 181http://www.geocaching.com/mark/details.asp?PID=HT0701941 4290 TIDAL 181GeocacheGeocache941 4290 TIDAL 181NOSCGS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <b> TIDAL BM </b> This is a Tidal Bench Mark. <br> <h1>941 4290 TIDAL 181</h1> <b> PID </b> HT0701 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 48 17. (N) 122 28 01. (W) SCALED <br> <b> NAVD 88 </b> 4.008 (meters) 13.15 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.53 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 4.006 (meters) 13.14 (feet) COMP <br> <b> MODELED GRAV</b> 979,982.4 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS I <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. WARNING-Repeat measurements at this control monument indicate possible vertical movement. <p>This Tidal Bench Mark is designated as VM 973 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> 646,620. </td><td> 1,826,810. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/??) 3.182 (m) 10.44 (f) ADJUSTED 1 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: 10SEG469842(NAD 83) <br>MARKER: DJ = TIDAL STATION DISK <br>SETTING: 37 = SET IN A MASSIVE RETAINING WALL <br>SP_SET: SEAWALL <br>STAMPING: 181 1945 <br>MARK LOGO: CGS <br>PROJECTION: FLUSH <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>1945 </td><td>MONUMENTED </td><td>NOS</td></tr><tr><td>1969 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1977 </td><td>GOOD </td><td>NGS</td></tr><tr><td>19880913</td><td>GOOD </td><td>NGS</td></tr><tr><td>19950915</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 OCEAN SERVICE 1945 AT SAN FRANCISCO. AT SAN FRANCISCO, AT THE PRESIDIO, ON THE PROPERTY OF THE COAST GUARD STATION, IN THE TOP OF THE NORTHWEST CORNER OF THE CONCRETE SEAWALL, 150 1/2 FEET NORTHWEST OF A FLAG POLE, 71.2 FEET NORTHEAST OF THE NORTH CORNER OF BUILDING S. F. 19.4, 19.7 FEET SOUTH OF LOOKOUT TOWER (S.F. 19-5), AND 3.8 FEET HIGHER THAN THE GROUND. <p> <h2>STATION RECOVERY (1969) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1969 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1977) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1977 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1988) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1995) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1995 (JDD) RECOVERED AS DESCRIBED. <p> <h2>STATION RECOVERY (1995) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1995 (JDD) RECOVERED AS DESCRIBED. HT0706941 4290 TIDAL 182http://www.geocaching.com/mark/details.asp?PID=HT0706941 4290 TIDAL 182GeocacheGeocache941 4290 TIDAL 182CGSCGS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <b> TIDAL BM </b> This is a Tidal Bench Mark. <br> <h1>941 4290 TIDAL 182</h1> <b> PID </b> HT0706 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 48 10. (N) 122 27 58. (W) SCALED <br> <b> NAVD 88 </b> 9.097 (meters) 29.85 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.53 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 9.091 (meters) 29.83 (feet) COMP <br> <b> MODELED GRAV</b> 979,980.1 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS I <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. WARNING-Repeat measurements at this control monument indicate possible vertical movement. <p>This Tidal Bench Mark is designated as VM 974 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> 646,400. </td><td> 1,826,880. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/??) 8.266 (m) 27.12 (f) ADJUSTED 1 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: 10SEG469840(NAD 83) <br>MARKER: DJ = TIDAL STATION DISK <br>SETTING: 38 = SET IN THE ABUTMENT OR PIER OF A LARGE BRIDGE <br>SP_SET: BRIDGE PILLAR <br>STAMPING: NO 182 1949 <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 14, 1988 <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>1952 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1969 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1977 </td><td>GOOD </td><td>NGS</td></tr><tr><td>19880914</td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1952 AT SAN FRANCISCO. AT SAN FRANCISCO, AT THE PRESIDIO, ABOUT 30 YARDS NORTH OF THE JUNCTION OF CRISSY AND MC DOWELL AVENUES, IN THE TOP OF THE SOUTHWEST CORNER OF THE NORTHERN-MOST OF TWO CONCRETE PILLARS SUPPORTING THE EASTERN APPROACH TO THE GOLDEN GATE BRIDGE, 57.5 FEET NORTHEAST OF THE CENTER OF CRISSY AVENUE, 31.5 FEET SOUTHEAST OF THE SOUTHWEST CORNER OF THE KITCHEN AT THE REAR OF STILWELL HALL, 3.2 FEET NORTHEAST OF THE NORTHEAST EDGE OF A CONCRETE WALK, AND ABOUT 4 FEET LOWER THAN THE AVENUES. <p> <h2>STATION RECOVERY (1969) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1969 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1977) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1977 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1988) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 RECOVERED IN GOOD CONDITION. HT3540941 4305 TIDAL 5http://www.geocaching.com/mark/details.asp?PID=HT3540941 4305 TIDAL 5GeocacheGeocache941 4305 TIDAL 5NOSNOS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <b> TIDAL BM </b> This is a Tidal Bench Mark. <br> <h1>941 4305 TIDAL 5</h1> <b> PID </b> HT3540 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 48 25. (N) 122 24 34. (W) SCALED <br> <b> NAVD 88 </b> 5.502 (meters) 18.05 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.46 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 5.499 (meters) 18.04 (feet) COMP <br> <b> MODELED GRAV</b> 979,976.8 (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 8086 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> 646,760. </td><td> 1,831,870. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (10/21/93) 4.669 (m) 15.32 (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: 10SEG519845(NAD 83) <br>MARKER: DJ = TIDAL STATION DISK <br>SETTING: 34 = SET IN THE FOOTINGS OF SMALL/MEDIUM STRUCTURES <br>SP_SET: FOUNDATION <br>STAMPING: TIDAL BM 5 1974 <br>MARK LOGO: NOS <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 NOT SUITABLE FOR <br>SATELLITE: SATELLITE OBSERVATIONS - September 20, 1988 <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>NOS</td></tr><tr><td>19880920</td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1988 IN SAN FRANCISCO, AT 111 BAY STREET, AT THE NORTH PORT SEWAGE TREATMENT PLANT, IN TOP OF AND 0.3 M (1.0 FT) NORTH OF THE SOUTH END OF THE CONCRETE FOUNDATION OF THE MOST SOUTHERLY 1 OF 3 OVERHEAD STEEL DOOR FRAMES OF A BUILDING WEST OF THE SEDIMENTATION BUILDING, BETWEEN NORTH POINT AND BAY STREETS, 5.3 M (17.4 FT) NORTH OF THE SOUTHEAST CORNER OF THE BUILDING,AND FLUSH WITH THE GROUND SURFACE. HT3541941 4305 TIDAL 6http://www.geocaching.com/mark/details.asp?PID=HT3541941 4305 TIDAL 6GeocacheGeocache941 4305 TIDAL 6NOSNOS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <b> TIDAL BM </b> This is a Tidal Bench Mark. <br> <h1>941 4305 TIDAL 6</h1> <b> PID </b> HT3541 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 48 20. (N) 122 24 24. (W) SCALED <br> <b> NAVD 88 </b> 5.601 (meters) 18.38 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.46 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 5.597 (meters) 18.36 (feet) COMP <br> <b> MODELED GRAV</b> 979,977.5 (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 8087 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> 646,600. </td><td> 1,832,120. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (10/21/93) 4.768 (m) 15.64 (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: 10SEG522844(NAD 83) <br>MARKER: DJ = TIDAL STATION DISK <br>SETTING: 40 = SET IN A LARGE STRUCTURE WITH DEEP FOUNDATIONS <br>SP_SET: FOUNDATION WALL <br>STAMPING: TIDAL BM 6 1974 <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 20, 1988 <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>NOS</td></tr><tr><td>19880920</td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1988 IN SAN FRANCISCO, AT THE INTERSECTION OF KEARNEY AND FRANCISCO STREETS, IN THE NORTHWEST CORNER OF AN EXTENDED FOUNDATION WALL OF A FOUR STORY PARKING GARAGE, 5.1 M (16.7 FT) SOUTH OF THE SOUTH CURB OF FRANCISCO STREET, 3.2 M (10.5 FT) EAST OF THE EAST CURB OF KEARNEY STREET, 0.8 M (2.6 FT) ABOVE A SIDEWALK, 0.7 M (2.3 FT) NORTH OF THE NORTHEAST CORNER OF THE BUILDING, AND 0.3 M (1.0 FT) SOUTH OF THE NORTH END OF THE FOUNDATION. HT0742941 4317 TIDAL 153http://www.geocaching.com/mark/details.asp?PID=HT0742941 4317 TIDAL 153GeocacheGeocache941 4317 TIDAL 153CGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>941 4317 TIDAL 153</h1> <b> PID </b> HT0742 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 47 28. (N) 122 23 33. (W) SCALED <br> <b> NAVD 88 </b> 3.61 (+/-2cm) 11.8 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -32.46 (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> 644,970. </td><td> 1,833,330. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/92) 2.783 (m) 9.13 (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: 10SEG534828(NAD 83) <br>MARKER: T = CHISELED TRIANGLE <br>SETTING: 30 = SET IN A LIGHT STRUCTURE <br>SP_SET: CONCRETE WALK <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>1952 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1965 </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 COAST AND GEODETIC SURVEY 1952 AT SAN FRANCISCO. AT SAN FRANCISCO, AT THE SOUTH CORNER OF THE INTERSECTION OF HOWARD AND SPEARE STREETS, AT TRIANGLE CHISELED IN THE TOP OF THE CONCRETE WALK, 15.6 FEET SOUTHWEST OF THE SOUTHWEST CURB OF SPEARE STREET, 11.7 FEET SOUTHEAST OF THE SOUTHEAST CURB OF HOWARD STREET, 0.9 FOOT WEST OF THE NORTH CORNER OF THE J.A. FOLGER AND COMPANY BUILDING, AND LEVEL WITH THE SIDEWALK. <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 THERE IS A NEW SIDEWALK AT THE DESCRIBED LOCATION. HT0759941 4317 TIDAL 179http://www.geocaching.com/mark/details.asp?PID=HT0759941 4317 TIDAL 179GeocacheGeocache941 4317 TIDAL 179CGSCGS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <b> TIDAL BM </b> This is a Tidal Bench Mark. <br> <h1>941 4317 TIDAL 179</h1> <b> PID </b> HT0759 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 47 25. (N) 122 23 19. (W) SCALED <br> <b> NAVD 88 </b> 3.505 (meters) 11.50 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.46 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 3.503 (meters) 11.49 (feet) COMP <br> <b> MODELED GRAV</b> 979,978.4 (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 8094 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> 644,880. </td><td> 1,833,670. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (10/21/93) 2.676 (m) 8.78 (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: 10SEG538827(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: 179 1925 <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 26, 1988 <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1925 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1956 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1965 </td><td>GOOD </td><td>NGS</td></tr><tr><td>19880926</td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1956 AT SAN FRANCISCO. AT SAN FRANCISCO, ON THE EMBARCADERO, BETWEEN PIERS 22 AND 24, SET VERTICALLY IN THE NORTHWEST CONCRETE WALL OF THE SAN FRANCISCO FIRE DEPARTMENT ENGINE HOUSE NO. 9 BUILDING, 0.8 FOOT NORTHEAST OF THE WEST CORNER, AND 0.6 FOOT ABOVE THE STREET. <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 WITH THE FOLLOWING EXCEPTION. DELETE--BETWEEN PIERS 22 AND 24. HT0744A 109http://www.geocaching.com/mark/details.asp?PID=HT0744A 109GeocacheGeocacheA 109CGSCGS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>A 109</h1> <b> PID </b> HT0744 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 47 27. (N) 122 24 06. (W) SCALED <br> <b> NAVD 88 </b> 9.13 (+/-2cm) 30.0 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -32.47 (meters) GEOID03 <br> <p> <b> VERT ORDER </b> FIRST CLASS I (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> 644,960. </td><td> 1,832,520. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/??) 8.303 (m) 27.24 (f) ADJUSTED 1 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: 10SEG526827(NAD 83) <br>MARKER: DB = BENCH MARK DISK <br>SETTING: 66 = SET IN ROCK OUTCROP <br>SP_SET: ROCK LEDGE <br>STAMPING: A 109 1932 <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 20, 1988 <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1932 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1952 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1969 </td><td>GOOD </td><td>NGS</td></tr><tr><td>19880920</td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1952 AT SAN FRANCISCO. AT SAN FRANCISCO, IN THE STANDARD OIL COMPANY BUILDING (225 BUSH STREET), IN THE TOP OF THE GRANITE LEDGE AT THE WEST END OF THE CENTER WINDOW BETWEEN THE BUSH STREET ENTRANCE AND THE NORTHWEST CORNER OF THE BUILDING, 92.2 FEET EAST OF THE NORTHWEST CORNER OF THE BUILDING, AND 3.4 FEET ABOVE THE SIDEWALK. <p> <h2>STATION RECOVERY (1969) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1969 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1988) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 RECOVERED IN GOOD CONDITION. HT0728A 553http://www.geocaching.com/mark/details.asp?PID=HT0728A 553GeocacheGeocacheA 553CGSCGS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <b> TIDAL BM </b> This is a Tidal Bench Mark. <br> <h1>A 553</h1> <b> PID </b> HT0728 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 48 15. (N) 122 24 08. (W) SCALED <br> <b> NAVD 88 </b> 4.385 (meters) 14.39 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.46 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 4.382 (meters) 14.38 (feet) COMP <br> <b> MODELED GRAV</b> 979,979.1 (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 8091 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> 646,440. </td><td> 1,832,500. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (10/21/93) 3.553 (m) 11.66 (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: 10SEG526842(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 553 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 20, 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>19880920</td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY COAST AND GEODETIC SURVEY 1956 AT SAN FRANCISCO. AT SAN FRANCISCO, AT THE T JUNCTION OF LOMBARD AND BATTERY STREETS, AT THE MERCHANTS ICE AND COLD STORAGE COMPANY BUILDING, SOUTH OF AND ACROSS EMBARCADERO FROM PIER 27, SET VERTICALLY IN THE EAST FACE OF THE BRICK WALL OF THE BUILDING, 21.0 FEET SOUTH OF THE NORTHEAST CORNER OF THE BUILDING, 10.8 FEET WEST OF THE WEST CURB OF BATTERY STREET, 5.4 FEET SOUTH OF THE SOUTH EDGE OF A DOOR COLUMN, 3.1 FEET ABOVE THE SIDEWALK, AND ABOUT 3 FEET HIGHER THAN THE STREET. <p> <h2>STATION RECOVERY (1988) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 RECOVERED IN GOOD CONDITION. HT0624A 571http://www.geocaching.com/mark/details.asp?PID=HT0624A 571GeocacheGeocacheA 571CGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>A 571</h1> <b> PID </b> HT0624 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO SOUTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 43 47. (N) 122 23 45. (W) SCALED <br> <b> NAVD 88 </b> 9.93 (+/-2cm) 32.6 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -32.51 (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> 638,170. </td><td> 1,832,900. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/92) 9.095 (m) 29.84 (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: 10SEG532760(NAD 83) <br>MARKER: DB = BENCH MARK DISK <br>SETTING: 36 = SET IN A MASSIVE STRUCTURE <br>SP_SET: BRIDGE WALL <br>STAMPING: A 571 1939 <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>1939 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1956 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1965 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1956 AT SAN FRANCISCO. AT SAN FRANCISCO, AT THE OVERHEAD CROSSING OF WILLIAMS AVENUE, IN THE TOP OF THE NORTH END OF THE EAST CONCRETE WING WALL OF WILLIAMS AVENUE CONCRETE BRIDGE, 93 FEET SOUTH OF THE SOUTH END OF TUNNEL 3, 78 FEET NORTH OF A POINT OF THE SOUTHERN PACIFIC COMPANY RAILROAD AT THE CENTER OF THE AVENUE, 8.7 FEET EAST OF THE EAST RAIL, AND 3 FEET HIGHER THAN THE RAILROAD. <p> <h2>STATION RECOVERY (1965) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1965 RECOVERED IN GOOD CONDITION. HT0778A 995http://www.geocaching.com/mark/details.asp?PID=HT0778A 995GeocacheGeocacheA 995CGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>A 995</h1> <b> PID </b> HT0778 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 46 47. (N) 122 23 55. (W) SCALED <br> <b> NAVD 88 </b> 5.46 (+/-2cm) 17.9 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -32.47 (meters) GEOID03 <br> <p> <b> VERT ORDER </b> FIRST CLASS I (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> 643,720. </td><td> 1,832,770. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/92) 4.633 (m) 15.20 (f) ADJ UNCH 1 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: 10SEG529815(NAD 83) <br>MARKER: DB = BENCH MARK DISK <br>SETTING: 36 = SET IN A MASSIVE STRUCTURE <br>SP_SET: BRIDGE <br>STAMPING: A 995 1965 <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>1965 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1969 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1987 </td><td>GOOD </td><td>USPSQD</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY COAST AND GEODETIC SURVEY 1965 AT SAN FRANCISCO. AT SAN FRANCISCO, ON THE SOUTHWEST SIDE OF FOURTH STREET MIDWAY BETWEEN BRYANT AND HARRISON STREETS, SET VERTICALLY IN THE NORTHEAST FACE OF THE CONCRETE PILLAR SUPPORTING THE FIFTH STREET OFF-RAMP FROM THE BAY BRIDGE, 41.5 FEET SOUTHWEST OF THE CENTERLINE OF FOURTH STREET, 10.3 FEET SOUTHWEST OF THE CURB, 1.5 FEET NORTHWEST OF THE EAST CORNER OF THE PILLAR, AND 3.5 FEET ABOVE THE SIDEWALK. <p> <h2>STATION RECOVERY (1969) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1969 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1987) </h2> <p>RECOVERY NOTE BY US POWER SQUADRON 1987 (RAS) RECOVERED IN GOOD CONDITION. HT0774A C OF SFhttp://www.geocaching.com/mark/details.asp?PID=HT0774A C OF SFGeocacheGeocacheA C OF SFCA3290Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>A C OF SF</h1> <b> PID </b> HT0774 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1992)</b> 37 46 15. (N) 122 23 53. (W) SCALED <br> <b> NAVD 88 </b> 6.37 (+/-2cm) 20.9 (feet) VERTCON <br> <hr> <b> EPOCH DATE </b> 1991.35 <br> <b> GEOID HEIGHT</b> -32.48 (meters) GEOID03 <br> <p> <b> VERT ORDER </b> FIRST CLASS I (See Below) <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. 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.) 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> 642,730. </td><td> 1,832,800. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/92) 5.539 (m) 18.17 (f) ADJ UNCH 1 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: 10SEG530805(NAD 83) <br>MARKER: X = CHISELED CROSS <br>SETTING: 36 = SET IN A MASSIVE STRUCTURE <br>SP_SET: LOADING DOCK <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>CA3290</td></tr><tr><td>1965 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1969 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1965 AT SAN FRANCISCO. AT SAN FRANCISCO, AT THE SOUTH CORNER OF THE INTERSECTION OF 10TH AND BRYANT STREETS, ON THE TOP OF THE SOUTHEAST END OF A CONCRETE LOADING DOCK, 39.6 FEET SOUTHEAST OF THE SOUTHEAST CURB OF BRYANT STREET, 9.6 FEET SOUTHWEST OF THE PROJECTED SOUTHWEST CURB OF 10TH STREET, 0.5 FOOT SOUTHWEST OF THE NORTHEAST SIDE OF THE DOCK, AND 4.1 FEET ABOVE THE GROUND. <p> <h2>STATION RECOVERY (1969) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1969 RECOVERED IN GOOD CONDITION. HT3019ALCATRAZ LIGHTHOUSEhttp://www.geocaching.com/mark/details.asp?PID=HT3019ALCATRAZ LIGHTHOUSEGeocacheGeocacheALCATRAZ LIGHTHOUSECGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>ALCATRAZ LIGHTHOUSE</h1> <b> PID </b> HT3019 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1992)</b> 37 49 34.41831(N) 122 25 19.66380(W) ADJUSTED <br> <b> NAVD 88 </b> 19. (meters) 62. (feet) SCALED <br> <hr> <b> EPOCH DATE </b> 1991.35 <br> <b> LAPLACE CORR</b> 1.88 (seconds) DEFLEC99 <br> <b> GEOID HEIGHT</b> -32.46 (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> 648,923.813 1</td><td>830,800.834</td><td> MT </td><td>0.99993004</td><td> -1 ' 10 36.4"</td></tr><tr><td>SPC CA 3 </td><td>2,129,010.88 6</td><td>006,552.40 </td><td> sFT </td><td>0.99993004</td><td> -1 ' 10 36.4"</td></tr><tr><td>UTM 10 </td><td>4,186,692.144 </td><td>550,855.246</td><td> MT </td><td>0.99963185</td><td> +0 ' 21 15.8"</td></tr> </table> <p> <b> </b> Elev Factor x Scale Factor = Combined Factor <br> <b>SPC CA 3 </b> 1.00000214 x 0.99993004 = 0.99993218 <br> <b>UTM 10 </b> 1.00000214 x 0.99963185 = 0.99963399 <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> FORT POINT LIGHTHOUSE </td><td>251° 27' 38.6"</td></tr><tr><td>UTM 10 </td><td> FORT POINT LIGHTHOUSE </td><td>249° 55' 46.4"</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>HT2906</td><td>BERKELEY PEET BROTHERS STACK </td><td>APPROX.11.6 KM</td><td>073° 24' 47.8"</td></tr><tr><td>HT2890</td><td>EMERYVILLE JUDSON IRON CEN STK </td><td>APPROX.11.5 KM</td><td>086° 53' 18.3"</td></tr><tr><td>HT2945</td><td>OAKLAND SHREDDED WHEAT BLDG TR </td><td>APPROX.11.8 KM</td><td>098° 56' 20.2"</td></tr><tr><td>HT2960</td><td>OAKLAND TRIBUNE BLDG FLAGPOLE </td><td>APPROX.13.6 KM</td><td>100° 50' 30.5"</td></tr><tr><td>HT3112</td><td>SOUTHERN PACIFIC CUPOLA </td><td>APPROX. 4.3 KM</td><td>146° 14' 08.7"</td></tr><tr><td>HT3090</td><td>SAN FRANCISCO R HILL APT ELEV </td><td>APPROX. 2.8 KM</td><td>175° 40' 30.2"</td></tr><tr><td>HT3084</td><td>SAN FRANCISCO BLACK POINT STK </td><td>APPROX. 2.1 KM</td><td>192° 00' 24.8"</td></tr><tr><td>HT3081</td><td>SAN FRANCISCO PG AND E GAS TK </td><td>APPROX. 2.6 KM</td><td>199° 50' 46.7"</td></tr><tr><td>HT3129</td><td>SAN FRANCISCO ST IGNAT W SPIRE </td><td>APPROX. 6.3 KM</td><td>205° 20' 28.5"</td></tr><tr><td>HT3036</td><td>FORT POINT LIGHTHOUSE </td><td>APPROX. 5.2 KM</td><td>250° 17' 02.2"</td></tr><tr><td>HT3103</td><td>POINT DIABLO LIGHT </td><td>APPROX. 6.8 KM</td><td>264° 20' 20.5"</td></tr><tr><td>HT3072</td><td>SAUSALITO POWERHOUSE GABLE </td><td>APPROX. 5.5 KM</td><td>292° 38' 24.1"</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> <b> NAD 83(1986)</b> 37 49 34.41418(N) 122 25 19.65842(W) AD(1984.00) 3 <br> <b> NAD 27 </b> 37 49 34.67200(N) 122 25 15.75800(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: 10SEG5085586692(NAD 83) <br>MARKER: 13 = LIGHTHOUSE <br>MAGNETIC: N = NO MAGNETIC MATERIAL <br>SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR <br>SATELLITE: SATELLITE OBSERVATIONS - January 21, 2003 <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1910 </td><td>FIRST OBSERVED </td><td>CGS</td></tr><tr><td>1932 </td><td>GOOD </td><td>CGS</td></tr><tr><td>1954 </td><td>GOOD </td><td>CGS</td></tr><tr><td>1955 </td><td>GOOD </td><td>CGS</td></tr><tr><td>1959 </td><td>GOOD </td><td>CGS</td></tr><tr><td>1965 </td><td>GOOD </td><td>CGS</td></tr><tr><td>1971 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1973 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1976 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1977 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1977 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1977 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1978 </td><td>GOOD </td><td>NOS</td></tr><tr><td>1979 </td><td>GOOD </td><td>NOS</td></tr><tr><td>1981 </td><td>GOOD </td><td>NOS</td></tr><tr><td>1986 </td><td>GOOD </td><td>USPSQD</td></tr><tr><td>1987 </td><td>GOOD </td><td>USPSQD</td></tr><tr><td>1987 </td><td>GOOD </td><td>USPSQD</td></tr><tr><td>1990 </td><td>GOOD </td><td>LOCSUR</td></tr><tr><td>1991 </td><td>GOOD </td><td>LOCSUR</td></tr><tr><td>1991 </td><td>GOOD </td><td>LOCSUR</td></tr><tr><td>1991 </td><td>GOOD </td><td>LOCSUR</td></tr><tr><td>19930710</td><td>GOOD </td><td>NOS</td></tr><tr><td>20030121</td><td>GOOD </td><td>GEOCAC</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY COAST AND GEODETIC SURVEY 1932 THE STEEL AND CONCRETE LIGHTHOUSE ON ALCATRAZ ISLAND, SAN FRANCISCO BAY. <p> <h2>STATION RECOVERY (1954) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1954 (GLA) THE STATION WAS FOUND AS DESCRIBED IN GOOD CONDITION. <p>THIS IS AN INTERSECTION STATION. <p> <h2>STATION RECOVERY (1955) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1955 (WMG) THE STATION WAS RECOVERED AS DESCRIBED IN GOOD CONDITION. <p>THE DESCRIPTION IS GOOD. <p>THE STATION IS THE FINIAL ON TOP OF THE BALL ON TOP OF THE LIGHTHOUSE ON ALCATRAZ ISLAND IN SAN FRANCISCO BAY. <p> <h2>STATION RECOVERY (1959) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1959 (JCM) THE STATION WAS RECOVERED IN GOOD CONDITION AND IS THE LIGHTHOUSE ON ALCATRAZ ISLAND IN SAN FRANCISCO BAY. IT IS A PROMINENT CONCRETE STRUCTURE THAT WAS BUILT IN 1909, IS THE TALLEST OBJECT ON THE ISLAND, AND HAS A FLASHING WHITE LIGHT. <p> <h2>STATION RECOVERY (1965) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1965 (EHS) THE STATION WAS RECOVERED IN GOOD CONDITION AND THE PREVIOUS DESCRIPTIONS ARE ADEQUATE. <p> <h2>STATION RECOVERY (1971) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1971 (DRT) THE STATION WAS RECOVERED AS DESCRIBED IN GOOD CONDITION. <p>AIRLINE DISTANCE AND DIRECTION FROM NEAREST TOWN--1.5 N.M. N OF SAND FRANCISCO <p> <h2>STATION RECOVERY (1973) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1973 (CLN) THE STATION WAS RECOVERED IN GOOD CONDITION AND THE PREVIOUS DESCRIPTIONS ARE ADEQUATE. <p>AIRLINE DISTANCE AND DIRECTION FROM NEAREST TOWN--ON ALCATRAZ ISLAND IN SAN FRANCISCO BAY <p> <h2>STATION RECOVERY (1976) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1976 (CA) THE STATION WAS RECOVERED AS DESCRIBED IN GOOD CONDITION. ALCATRAZ ISLAND IN NOW A FEDERAL PARK. <p>AIRLINE DISTANCE AND DIRECTION FROM NEAREST TOWN 1.5 MILE N OF SAN FRANCISCO. <p> <h2>STATION RECOVERY (1977) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1977 (CLN) THE STATION WAS RECOVERED IN GOOD CONDITION AND THE PREVIOUS DESCRIPTIONS ARE ADEQUATE. <p>AIRLINE DISTANCE AND DIRECTION FROM NEAREST TOWN 1-1/4 MILES NORTH OF SAN FRANCISCO. <p> <h2>STATION RECOVERY (1977) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1977 (RBM) THE STATION WAS RECOVERED IN GOOD CONDITION AS DESCRIBED. DESIGNATED AS NO. 578 IN THE PUBLICATION LIGHT LIST VOLUME III PACIFIC COAST AND PACIFIC ISLANDS, 1976. <p>AIRLINE DISTANCE AND DIRECTION FROM NEAREST TOWN 1 MILE NORTH OF SAN FRANCISCO. <p> <h2>STATION RECOVERY (1977) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1977 (CLN) THE STATION WAS RECOVERED IN GOOD CONDITION AND THE PREVIOUS DESCRIPTIONS ARE ADEQUATE. <p> <h2>STATION RECOVERY (1978) </h2> <p>RECOVERY NOTE BY NATIONAL OCEAN SERVICE 1978 (JPR) STATION WAS RECOVERED AS DESCRIBED IN GOOD CONDITION. DESCRIBED BY S.M. MILLER <p> <h2>STATION RECOVERY (1979) </h2> <p>RECOVERY NOTE BY NATIONAL OCEAN SERVICE 1979 (RBM) THE STATION WAS RECOVERED IN GOOD CONDITION AS DESCRIBED. <p> <h2>STATION RECOVERY (1981) </h2> <p>RECOVERY NOTE BY NATIONAL OCEAN SERVICE 1981 (DRT) RECOVERED AS DESCRIBED BY F.M. IN 1910 AND J.C. MATHISSON IN 1959. <p>DESCRIBED BY B.H. LUND <p> <h2>STATION RECOVERY (1986) </h2> <p>RECOVERY NOTE BY US POWER SQUADRON 1986 (RJS) RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1987) </h2> <p>RECOVERY NOTE BY US POWER SQUADRON 1987 (RO) RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1987) </h2> <p>RECOVERY NOTE BY US POWER SQUADRON 1987 (MIH) RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1990) </h2> <p>RECOVERY NOTE BY LOCAL SURVEYOR (INDIVIDUAL OR FIRM) 1990 (BRH) THE STATION WAS RECOVERED IN GOOD CONDITION AS DESCRIBED. <p> <h2>STATION RECOVERY (1991) </h2> <p>RECOVERY NOTE BY LOCAL SURVEYOR (INDIVIDUAL OR FIRM) 1991 (JC) THE DESIGNATED MARK WAS RECOVERED AS PREVIOUSLY DESCRIBED. <p> <h2>STATION RECOVERY (1991) </h2> <p>RECOVERY NOTE BY LOCAL SURVEYOR (INDIVIDUAL OR FIRM) 1991 (JC) THE DESIGNATED MARK WAS RECOVERED AS PREVIOUSLY DESCRIBED. <p> <h2>STATION RECOVERY (1991) </h2> <p>RECOVERY NOTE BY LOCAL SURVEYOR (INDIVIDUAL OR FIRM) 1991 (JC) THE DESIGNATED MARK WAS RECOVERED AS PREVIOUSLY DESCRIBED. <p> <h2>STATION RECOVERY (1993) </h2> <p>RECOVERY NOTE BY NATIONAL OCEAN SERVICE 1993 (JC) RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (2003) </h2> <p>RECOVERY NOTE BY GEOCACHING 2003 (CAZ) RECOVERED IN GOOD CONDITION. HT3015ALCATRAZ WATER TANKhttp://www.geocaching.com/mark/details.asp?PID=HT3015ALCATRAZ WATER TANKGeocacheGeocacheALCATRAZ WATER TANKCGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>ALCATRAZ WATER TANK</h1> <b> PID </b> HT3015 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1992)</b> 37 49 39.15132(N) 122 25 25.73364(W) ADJUSTED <br> <b> NAVD 88 </b> 21. (meters) 69. (feet) SCALED <br> <hr> <b> EPOCH DATE </b> 1991.35 <br> <b> LAPLACE CORR</b> 1.87 (seconds) DEFLEC99 <br> <b> GEOID HEIGHT</b> -32.46 (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> 649,072.747 1</td><td>830,655.435</td><td> MT </td><td>0.99993007</td><td> -1 ' 10 40.2"</td></tr><tr><td>SPC CA 3 </td><td>2,129,499.50 6</td><td>006,075.37 </td><td> sFT </td><td>0.99993007</td><td> -1 ' 10 40.2"</td></tr><tr><td>UTM 10 </td><td>4,186,837.097 </td><td>550,705.964</td><td> MT </td><td>0.99963167</td><td> +0 ' 21 12.1"</td></tr> </table> <p> <b> </b> Elev Factor x Scale Factor = Combined Factor <br> <b>SPC CA 3 </b> 1.00000183 x 0.99993007 = 0.99993190 <br> <b>UTM 10 </b> 1.00000183 x 0.99963167 = 0.99963349 <br> <p> <h2>Superseded Survey Control</h2>
<p> <b> NAD 83(1986)</b> 37 49 39.14724(N) 122 25 25.72835(W) AD(1984.00) 3 <br> <b> NAD 27 </b> 37 49 39.41100(N) 122 25 21.83500(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: 10SEG5070686837(NAD 83) <br>SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR <br>SATELLITE: SATELLITE OBSERVATIONS - January 21, 2003 <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1940 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1944 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr><tr><td>1959 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr><tr><td>1959 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr><tr><td>1965 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr><tr><td>1976 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1977 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1986 </td><td>GOOD </td><td>USPSQD</td></tr><tr><td>20030121</td><td>GOOD </td><td>GEOCAC</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY COAST AND GEODETIC SURVEY 1940 (JMS) THIS INTERSECTION STATION IS THE ALUMINUM PAINTED WATER TANK, CONSTRUCTED MARCH-APRIL OF 1940, LOCATED AT THE FEDERAL PRISON ON ALCATRAZ ISLAND IN SAN FRANCISCO BAY. THE TANK IS ON THE TOP OF A STEEL STRUCTURE AT THE NORTHWESTERLY END OF THE ISLAND, AND IS STATED TO BE OF 40-FOOT DIAMETER AND 250,000-GALLON CAPACITY. <p> <h2>STATION RECOVERY (1944) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1944 (EHP) RECOVERED AS DESCRIBED. DESCRIPTION ADEQUATE. <p> <h2>STATION RECOVERY (1959) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1959 (JCM) THE STATION WAS RECOVERED IN GOOD CONDITION AND THE 1940 DESCRIPTION IS ADEQUATE. <p> <h2>STATION RECOVERY (1959) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1959 (JCL) THE STATION WAS NOT VISITED. IT IS THE ONLY ELEVATED TANK ON THE ISLAND AND ITS POSITION WAS CHECKED BY AZIMUTHS FROM OTHER TRIANGULATION <p> <h2>STATION RECOVERY (1965) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1965 (PAS) RECOVERED AS DESCRIBED IN 1940. <p> <h2>STATION RECOVERY (1976) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1976 (CA) STATION WAS RECOVERED AS DESCRIBED IN 1940 EXCEPT ALCATRAZ ISLAND IS NOW FEDERAL PARK AND THE TANK IS COVERED WITH INDIAN GRAFFITTI. THE STATION WAS VISITED. <p>AIRLINE DISTANCE AND DIRECTION FROM NEAREST TOWN 1.5 MILE N OF SAN FRANCISCO. <p> <h2>STATION RECOVERY (1977) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1977 (RBM) RECOVERED AS DESCRIBED. <p>AIRLINE DISTANCE AND DIRECTION FROM NEAREST TOWN 1 MILE NORTH OF SAN FRANCISCO. <p> <h2>STATION RECOVERY (1986) </h2> <p>RECOVERY NOTE BY US POWER SQUADRON 1986 (RJS) RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (2003) </h2> <p>RECOVERY NOTE BY GEOCACHING 2003 (CAZ) RECOVERED IN GOOD CONDITION. AF8688ALLEYhttp://www.geocaching.com/mark/details.asp?PID=AF8688ALLEYGeocacheGeocacheALLEYNOSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>ALLEY</h1> <b> PID </b> AF8688 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> OAKLAND WEST (1993) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1992)</b> 37 49 30.71186(N) 122 22 05.24487(W) ADJUSTED <br> <b> NAVD 88 </b> <br> <hr> <b> EPOCH DATE </b> 1991.35 <br> <b> LAPLACE CORR</b> 1.07 (seconds) DEFLEC99 <br> <b> GEOID HEIGHT</b> -32.41 (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> <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> 648,713.300 1</td><td>835,551.832</td><td> MT </td><td>0.99993001</td><td> -1 ' 08 37.4"</td></tr><tr><td>SPC CA 3 </td><td>2,128,320.22 6</td><td>022,139.64 </td><td> sFT </td><td>0.99993001</td><td> -1 ' 08 37.4"</td></tr><tr><td>UTM 10 </td><td>4,186,608.685 </td><td>555,608.769</td><td> MT </td><td>0.99963809</td><td> +0 ' 23 15.0"</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: 10SEG5560986609(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> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL OCEAN SERVICE 1978 (JPR) STATION IS LOCATED NEAR THE CENTER OF THE HIGHEST ROOF SECTION OF THE BOWLING ALLEY, SPECIAL SERVICES AND SWIMMING POOL COMPLEX WHICH IS LOCATED ON THE EAST SIDE OF AVENUE I BETWEEN 8TH AND 9TH STREETS, NAVAL STATION, TREASURE ISLAND, SAN FRANCISCO. THE STATION MARK IS A STANDARD NATIONAL OCEAN SURVEY DISK STAMPED---ALLEY 1978--- EPOXIED TO THE ROOF, IS SET 19.40 METERS SOUTHWEST OF THE NORTHEAST OF THE ROOF AND 18.78 METERS SOUTHEAST OF THE NORTHWEST CORNER OF THE ROOF. DESCRIBED BY S.M. MILLER HT3016ANITA ROCK LIGHThttp://www.geocaching.com/mark/details.asp?PID=HT3016ANITA ROCK LIGHTGeocacheGeocacheANITA ROCK LIGHTCGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>ANITA ROCK LIGHT</h1> <b> PID </b> HT3016 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1992)</b> 37 48 29.96914(N) 122 27 12.73193(W) ADJUSTED <br> <b> NAVD 88 </b> <br> <hr> <b> EPOCH DATE </b> 1991.35 <br> <b> LAPLACE CORR</b> 2.28 (seconds) DEFLEC99 <br> <b> GEOID HEIGHT</b> -32.51 (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> <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> 646,994.575 1</td><td>827,995.026</td><td> MT </td><td>0.99992968</td><td> -1 ' 11 45.7"</td></tr><tr><td>SPC CA 3 </td><td>2,122,681.37 5</td><td>997,347.01 </td><td> sFT </td><td>0.99992968</td><td> -1 ' 11 45.7"</td></tr><tr><td>UTM 10 </td><td>4,184,689.226 </td><td>548,102.813</td><td> MT </td><td>0.99962850</td><td> +0 ' 20 06.0"</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> <b> NAD 83(1986)</b> 37 48 29.96550(N) 122 27 12.72727(W) AD(1984.00) 4 <br> <b> NAD 27 </b> 37 48 30.21900(N) 122 27 08.82100(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: 10SEG4810384689(NAD 83) <br>MARKER: 14 = NAVIGATION LIGHT <br>SETTING: 0 = UNSPECIFIED SETTING <br>MAGNETIC: N = NO MAGNETIC MATERIAL <br>SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR <br>SATELLITE: SATELLITE OBSERVATIONS - April 01, 2005 <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1965 </td><td>FIRST OBSERVED </td><td>CGS</td></tr><tr><td>1971 </td><td>SEE DESCRIPTION </td><td>NGS</td></tr><tr><td>1976 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1978 </td><td>GOOD </td><td>NOS</td></tr><tr><td>1987 </td><td>GOOD </td><td>USPSQD</td></tr><tr><td>20050401</td><td>GOOD </td><td>USPSQD</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY COAST AND GEODETIC SURVEY 1965 (EHS) THE STATION IS LOCATED IN SAN FRANCISCO BAY, ABOUT 250 METERS NORTH OF THE SOUTH SHORELINE AT THE PRESIDIO, 600 METERS WEST-NORTHWEST OF THE SAINT FRANCIS YACHT CLUB, AND 1-1/4 MILES EAST OF THE SOUTH END OF THE GOLDEN GATE BRIDGE, AND IS A QUICK-FLASHING, WHITE LIGHT, ABOVE AN ORANGE AND WHITE DAYMARK, ABOUT 20 FEET ABOVE THE WATER, MOUNTED ON A HEXAGONAL CONCRETE PILE PROJECTING ABOVE A CONCRETE BASE ABOUT 5 FEET IN DIAMETER. <p> <h2>STATION RECOVERY (1971) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1971 (HH) THE STATION WAS RECOVERED IN GOOD CONDITION AS DESCRIBED. <p>AIRLINE DISTANCE AND DIRECTION FROM NEAREST TOWN--IN SAN FRANCISCO <p> <h2>STATION RECOVERY (1976) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1976 (CA) THE STATION WAS RECOVERED IN GOOD CONDITION AS DESCRIBED IN 1965. <p>AIRLINE DISTANCE AND DIRECTION FROM NEAREST TOWN LOCATED IN SAN FRANCISCO. <p> <h2>STATION RECOVERY (1978) </h2> <p>RECOVERY NOTE BY NATIONAL OCEAN SERVICE 1978 (JPR) THE STATION WAS RECOVERED IN GOOD CONDITION AS DESCRIBED. DESCRIBED BY S.M. MILLER <p> <h2>STATION RECOVERY (1987) </h2> <p>RECOVERY NOTE BY US POWER SQUADRON 1987 (KV) RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (2005) </h2> <p>RECOVERY NOTE BY US POWER SQUADRON 2005 (JJJ) RECOVERED IN GOOD CONDITION. HT0844ARMY 2http://www.geocaching.com/mark/details.asp?PID=HT0844ARMY 2GeocacheGeocacheARMY 2CGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>ARMY 2</h1> <b> PID </b> HT0844 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> OAKLAND WEST (1993) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1992)</b> 37 48 50.30177(N) 122 21 34.53768(W) ADJUSTED <br> <b> NAVD 88 </b> 24.93 (+/-2cm) 81.8 (feet) VERTCON <br> <hr> <b> EPOCH DATE </b> 1991.35 <br> <b> LAPLACE CORR</b> 0.81 (seconds) DEFLEC99 <br> <b> GEOID HEIGHT</b> -32.42 (meters) GEOID03 <br> <p> <b> HORZ ORDER </b> FIRST <br> <b> VERT ORDER </b> FIRST CLASS II (See Below) <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.) The vertical order pertains to the NGVD 29 superseded value. <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> 647,452.779 1</td><td>836,277.843</td><td> MT </td><td>0.99992978</td><td> -1 ' 08 18.6"</td></tr><tr><td>SPC CA 3 </td><td>2,124,184.66 6</td><td>024,521.56 </td><td> sFT </td><td>0.99992978</td><td> -1 ' 08 18.6"</td></tr><tr><td>UTM 10 </td><td>4,185,368.375 </td><td>556,367.982</td><td> MT </td><td>0.99963913</td><td> +0 ' 23 33.5"</td></tr> </table> <p> <b> </b> Elev Factor x Scale Factor = Combined Factor <br> <b>SPC CA 3 </b> 1.00000117 x 0.99992978 = 0.99993095 <br> <b>UTM 10 </b> 1.00000117 x 0.99963913 = 0.99964030 <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> ALAMEDA NAS W BREAKWATER W LT </td><td>142° 54' 36.3"</td></tr><tr><td>UTM 10 </td><td> ALAMEDA NAS W BREAKWATER W LT </td><td>141° 22' 44.2"</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>HT2904</td><td>CAMPANILE UNIVERSITY OF CALIF </td><td>APPROX.11.0 KM</td><td>054° 13' 54.0"</td></tr><tr><td>HT2913</td><td>ALAMEDA NAVAL AIR STA BEACON </td><td>APPROX. 5.4 KM</td><td>125° 34' 08.8"</td></tr><tr><td>HT2894</td><td>ALAMEDA NAS E BREAKWATER N LT </td><td>APPROX. 6.8 KM</td><td>138° 08' 26.5"</td></tr><tr><td>HT2893</td><td>ALAMEDA NAS E BREAKWATER S LT </td><td>APPROX. 6.9 KM</td><td>138° 49' 56.5"</td></tr><tr><td>HT2923</td><td>ALAMEDA NAS W BREAKWATER E LT </td><td>APPROX. 6.6 KM</td><td>139° 31' 59.2"</td></tr><tr><td>HT2929</td><td>ALAMEDA NAS W BREAKWATER W LT </td><td>APPROX. 6.0 KM</td><td>141° 46' 17.7"</td></tr><tr><td>HT0845</td><td>ARMY 2 RM 1 </td><td> 10.303 METERS</td><td>215° 03' </td></tr><tr><td>HT0843</td><td>ARMY 2 RM 2 </td><td> 6.686 METERS</td><td>325° 31' </td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> <b> NAD 83(1986)</b> 37 48 50.29596(N) 122 21 34.53703(W) AD(1984.00) 1 <br> <b> NAD 27 </b> 37 48 50.55800(N) 122 21 30.63700(W) AD( ) 1 <br> NGVD 29 (??/??/92) 24.109 (m) 79.10 (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: 10SEG5636885368(NAD 83) <br>MARKER: O = CHISELED CIRCLE <br>SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT <br>SP_SET: TOP OF SQUARE CONCRETE MONUMENT <br>STAMPING: ARMY 2 1947 <br>MAGNETIC: N = NO MAGNETIC MATERIAL <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>1947 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1956 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr><tr><td>1956 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1958 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr><tr><td>1962 </td><td>SEE DESCRIPTION </td><td>CASLC</td></tr><tr><td>1965 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr><tr><td>1971 </td><td>SEE DESCRIPTION </td><td>NGS</td></tr><tr><td>1977 </td><td>GOOD </td><td>USCG</td></tr><tr><td>1978 </td><td>GOOD </td><td>NOS</td></tr><tr><td>1980 </td><td>GOOD </td><td>NOS</td></tr><tr><td>1987 </td><td>GOOD </td><td>USPSQD</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY COAST AND GEODETIC SURVEY 1947 (SPH) THE STATION IS ON THE NORTHEASTERN POINT OF YERBA BUENA ISLAND AND ON THE HIGHEST POINT OF A SMALL RISE THAT LIES ABOUT 80 FEET ABOVE THE BAY. IT IS SOUTHERLY ACROSS NAVY CIRCLE FROM NAVAL BARRACKS 232 AND ALMOST DIRECTLY UNDERNEATH THE CENTER OF THE SAN FRANCISCO - OAKLAND BAY BRIDGE. <p>THE STATION MARK, STAMPED ARMY 2 1947, IS A STANDARD DISK SET IN A 12 INCH SQUARE CONCRETE POST PROJECTING 1 INCH ABOVE THE SURFACE OF THE GROUND. IT IS ABOUT 10 METERS EAST OF A RETAINING WALL AT THE EDGE OF NAVY CIRCLE AND 10 METERS SOUTH OF AN OLD, CONCRETE, RECTANGULAR FOUNDATION. <p>REFERENCE MARK NO. 1, STAMPED ARMY 2 NO 1 1947, IS A STANDARD DISK SET SET IN A 12 INCH SQUARE CONCRETE POST FLUSH WITH THE SURFACE OF THE GROUND. IT IS ABOUT 3-1/2 METERS NORTHWEST OF THE BLUFF, 1 METER EAST OF THE WALL AT THE EDGE OF NAVY CIRCLE, AND 2-1/2 FEET LOWER THAN THE STATION MARK. <p>REFERENCE MARK NO. 2, STAMPED ARMY 2 NO 2 1947, IS A STANDARD DISK SET IN A 12 INCH SQUARE CONCRETE POST FLUSH WITH THE SURFACE OF THE GROUND. IT IS ABOUT 1 METER SOUTHWEST OF THE SOUTHWEST CORNER OF THE OLD CONCRETE FOUNDATION AND AT THE SAME ELEVATION AS THE STATION MARK. <p>STATION NAVY 1932 WILL SERVE AS THE AZIMUTH MARK FOR THIS STATION. <p> <h2>STATION RECOVERY (1956) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1956 (EEJ) THE STATION AND REFERENCE MARKS 1 AND 2 WERE RECOVERED IN GOOD CONDITION <p> <h2>STATION RECOVERY (1956) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1956 AT YERBA BUENA ISLAND. AT YERBA BUENA ISLAND, AT THE NORTHEAST POINT OF THE ISLAND, AT THE EAST END OF NAVY ROAD, UNDER THE CENTER OF THE BAY BRIDGE, 33.8 FEET NORTHEAST OF REFERENCE MARK 1, 24.0 FEET SOUTHEAST OF THE SOUTH CORNER OF A 10- BY 15-FOOT CONCRETE BLOCK WHICH PROJECTS 1 1/2 FEET ABOVE THE GROUND, 21.9 FEET SOUTHEAST OF REFERENCE MARK 2, ABOUT 10 FEET HIGHER THAN THE ROAD, AND SET IN THE TOP OF A CONCRETE POST PROJECTING 0.1 FOOT ABOVE THE GROUND. <p> <h2>STATION RECOVERY (1958) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1958 (JCM) THE STATION MARK AND REFERENCE MARKS WERE RECOVERED IN GOOD CONDITION. THE 1947 DESCRIPTION IS ADEQUATE. <p> <h2>STATION RECOVERY (1962) </h2> <p>RECOVERY NOTE BY CALIFORNIA STATE LANDS COMMISSION 1962 STATION IS LOCATED ON THE NORTHEASTERN SIDE OF YERBA BUENA ISLAND, UNDER THE SAN FRANCISCO OAKLAND BAY BRIDGE, AND NEARLY ON CENTERLINE OF THE BRIDGE. THE STATION IS BETWEEN THE CONCRETE BRIDGE PIER ON THE ISLAND AND THE FIRST STEEL PIERS IN THE WATER, ON A RISE ABOUT 80 FEET ABOVE THE WATER. <p>STATION IS 183 FEET EASTERLY OF THE FACE OF THE CONCRETE BRIDGE PIER, (AT CENTERLINE), 27.8 FEET EASTERLY OF A WOOD RETAINING WALL, 25.5 FEET SOUTHERLY OF THE SOUTHWEST CORNER OF A 8 FT X 16 FT FOOTING (CONCRETE), 30.3 FEET SOUTHERLY OF THE SOUTHEAST CORNER OF THE FOOTING, 12 FEET WEST OF THE TOP OF BLUFF, AND 3 FEET NORTH OF THE BRIDGE CENTERLINE. STATION CONSISTS OF A STANDARD USC AND GS BRASS CAP SET IN A 12 IN X 12 IN CONCRETE MONUMENT WHICH IS FLUSH WITH THE GROUND. CAP IS STAMPED ARMY 2, 1947. <p>R.M. 1 IS 4 FEET EAST OF THE WOOD RETAINING WALL, 14 FEET FROM THE TOP OF BLUFF, 16 FEET SOUTHERLY OF THE BRIDGE CENTERLINE. R.M. 1 CONSISTS OF A STANDARD USC AND GS BRASS CAP SET IN A 12 IN X 12 IN CONCRETE MONUMENT, WHICH IS FLUSH WITH THE GROUND. CAP IS STAMPED ARMY 2 NO. 1, 1947. <p>R.M. 2 IS 16 FEET EASTERLY OF THE WOOD RETAINING WALL, 24.5 NORTHERLY OF THE BRIDGE CENTERLINE, 6.5 FEET SOUTHWEST OF THE SOUTHWEST CORNER OF THE 8 FT X 16 FT CONCRETE FOOTING, 25 FEET WESTERLY OF THE TOP OF THE BLUFF. R.M. 2 CONSISTS OF A STANDARD USC AND GS BRASS CAP SET IN A 12 IN X 12 IN CONCRETE MONUMENT WHICH IS FLUSH WITH THE GROUND. CAP IS STAMPED ARMY 2 NO. 2, 1947. <p> <h2>STATION RECOVERY (1965) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1965 (PAS) THE STATION AND REFERENCE MARKS WERE RECOVERED AS DESCRIBED BY S.P.H. IN 1947. <p> <h2>STATION RECOVERY (1971) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1971 (DRT) THE STATION MARK WAS RECOVERED IN GOOD CONDITION. <p>AIRLINE DISTANCE AND DIRECTION FROM NEAREST TOWN--EAST END OF YERBA BUENA ISLAND IN SAN FRANCISCO BAY <p> <h2>STATION RECOVERY (1977) </h2> <p>RECOVERY NOTE BY US COAST GUARD 1977 (RLM) ARMY 2 GOOD <p>REFS IN GOOD COND. <p> <h2>STATION RECOVERY (1978) </h2> <p>RECOVERY NOTE BY NATIONAL OCEAN SERVICE 1978 (JPR) STATION WAS RECOVERED AS DESCRIBED IN GOOD CONDITION. DESCRIBED BY S.M. MILLER <p> <h2>STATION RECOVERY (1980) </h2> <p>RECOVERY NOTE BY NATIONAL OCEAN SERVICE 1980 (DRT) STATION WAS RECOVERED AS DESCRIBED BY S.P. HAND IN 1947 AND CSLC IN 1962. <p>DESCRIBED BY D.D. SMITH <p> <h2>STATION RECOVERY (1987) </h2> <p>RECOVERY NOTE BY US POWER SQUADRON 1987 (GRB) RECOVERED IN GOOD CONDITION. HT0845ARMY 2 RM 1http://www.geocaching.com/mark/details.asp?PID=HT0845ARMY 2 RM 1GeocacheGeocacheARMY 2 RM 1CGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>ARMY 2 RM 1</h1> <b> PID </b> HT0845 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> OAKLAND WEST (1993) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 48 50. (N) 122 21 34. (W) SCALED <br> <b> NAVD 88 </b> 23.98 (+/-2cm) 78.7 (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> 647,440. </td><td> 1,836,290. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/92) 23.158 (m) 75.98 (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: 10SEG563853(NAD 83) <br>MARKER: DR = REFERENCE MARK DISK <br>SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT <br>SP_SET: SET IN TOP OF CONCRETE MONUMENT <br>STAMPING: ARMY 2 NO 1 1947 <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>1947 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1956 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1987 </td><td>GOOD </td><td>USPSQD</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1956 AT YERBA BUENA ISLAND. AT YERBA BUENA ISLAND, AT THE NORTHEAST POINT OF ISLAND, AT THE EAST END OF NAVY ROAD, ON TOP OF A RIDGE, UNDER THE SOUTHEAST EDGE OF THE BAY BRIDGE, 33.8 FEET SOUTHWEST OF ARMY 2 TRIANGULATION STATION, 3.2 FEET NORTHEAST OF A WOODEN RETAINING WALL, ABOUT 8 FEET HIGHER THAN THE ROAD, AND SET IN THE TOP OF A CONCRETE POST FLUSH WITH THE GROUND. <p> <h2>STATION RECOVERY (1987) </h2> <p>RECOVERY NOTE BY US POWER SQUADRON 1987 (GRB) RECOVERED IN GOOD CONDITION. HT0843ARMY 2 RM 2http://www.geocaching.com/mark/details.asp?PID=HT0843ARMY 2 RM 2GeocacheGeocacheARMY 2 RM 2CGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>ARMY 2 RM 2</h1> <b> PID </b> HT0843 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> OAKLAND WEST (1993) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 48 50. (N) 122 21 33. (W) SCALED <br> <b> NAVD 88 </b> 25.06 (+/-2cm) 82.2 (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> 647,440. </td><td> 1,836,320. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/92) 24.237 (m) 79.52 (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: 10SEG564853(NAD 83) <br>MARKER: DR = REFERENCE MARK DISK <br>SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT <br>SP_SET: SET IN TOP OF CONCRETE MONUMENT <br>STAMPING: ARMY 2 NO 2 1947 <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>1947 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1956 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1956 AT YERBA BUENA ISLAND. AT YERBA BUENA ISLAND, AT THE NORTHEAST POINT OF THE ISLAND, AT THE EAST END OF NAVY ROAD, ON TOP OF A RIDGE, UNDER THE NORTHWEST EDGE OF THE BAY BRIDGE, 21.9 FEET NORTHWEST OF ARMY 2 TRIANGULATION STATION, 15.5 FEET EAST OF A WOODEN RETAINING WALL, 4.6 FEET SOUTH OF THE SOUTH CORNER OF A 15- BY 10-FOOT CONCRETE BLOCK WHICH PROJECTS 1 1/2 FEET ABOVE THE GROUND, ABOUT 10 FEET HIGHER THAN THE ROAD, AND SET IN THE TOP OF A CONCRETE POST FLUSH WITH THE GROUND. HT2884ARMY SFBB 1931http://www.geocaching.com/mark/details.asp?PID=HT2884ARMY SFBB 1931GeocacheGeocacheARMY SFBB 1931CGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>ARMY SFBB 1931</h1> <b> PID </b> HT2884 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> OAKLAND WEST (1993) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1992)</b> 37 48 51.08385(N) 122 21 35.34556(W) ADJUSTED <br> <b> NAVD 88 </b> 42.8 (meters) 140. (feet) VERTCON <br> <hr> <b> EPOCH DATE </b> 1991.35 <br> <b> LAPLACE CORR</b> 0.81 (seconds) DEFLEC99 <br> <b> GEOID HEIGHT</b> -32.42 (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 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> 647,477.277 1</td><td>836,258.567</td><td> MT </td><td>0.99992978</td><td> -1 ' 08 19.1"</td></tr><tr><td>SPC CA 3 </td><td>2,124,265.03 6</td><td>024,458.32 </td><td> sFT </td><td>0.99992978</td><td> -1 ' 08 19.1"</td></tr><tr><td>UTM 10 </td><td>4,185,392.343 </td><td>556,348.064</td><td> MT </td><td>0.99963911</td><td> +0 ' 23 33.0"</td></tr> </table> <p> <b> </b> Elev Factor x Scale Factor = Combined Factor <br> <b>SPC CA 3 </b> 0.99999837 x 0.99992978 = 0.99992815 <br> <b>UTM 10 </b> 0.99999837 x 0.99963911 = 0.99963748 <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> PM 20 </td><td>002° 44' 01.2"</td></tr><tr><td>UTM 10 </td><td> PM 20 </td><td>001° 12' 09.1"</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>HT2967</td><td>PM 20 </td><td>APPROX. 3.8 KM</td><td>001° 35' 42.1"</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> <b> NAD 83(1986)</b> 37 48 51.07791(N) 122 21 35.34516(W) AD(1984.00) 2 <br> <b> NAD 27 </b> 37 48 51.34000(N) 122 21 31.43700(W) AD( ) 2 <br> NGVD 29 (07/19/86) 42.0 (m) 138. (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: 10SEG5634885392(NAD 83) <br>MARKER: Z = SEE DESCRIPTION <br>SETTING: 0 = UNSPECIFIED SETTING <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>1935 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1958 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY COAST AND GEODETIC SURVEY 1935 (TJM) THIS STATION WAS ESTABLISHED BY THE SAN FRANCISCO BAY BRIDGE ENGINEERS IN 1931. IT IS RECOVERED IN 1935, IN GOOD CONDITION. IT IS LOCATED ON TOP OF THE POINTED KNOLL AT THE EXTREME N.E. SIDE OF YERBA BUENA ID. IT IS ABOUT 30 YARDS NORTH OF THE CENTER OF THE BRIDGE. THERE IS A SMALL WOOD OBSERVING BUILDING BUILT OVER THE MARK. THE MARK IS A 1-1/4 INCH BRASS PIPE WITH A BRASS CAP WITH DRILL HOLE IN ITS CENTER. IT IS SET IN A CONCRETE MONUMENT WITH THE SURFACE OF THE CAP FLUSH WITH THE CONCRETE. <p> <h2>STATION RECOVERY (1958) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1958 (JCM) THE PART OF THE HILL THE STATION WAS LOCATED ON HAS BEEN GRADED DOWN. STATION LOST. HT0732ASTRONOMIC STATIONhttp://www.geocaching.com/mark/details.asp?PID=HT0732ASTRONOMIC STATIONGeocacheGeocacheASTRONOMIC STATIONCGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>ASTRONOMIC STATION</h1> <b> PID </b> HT0732 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 48 03. (N) 122 24 34. (W) SCALED <br> <b> NAVD 88 </b> 26.94 (+/-2cm) 88.4 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -32.46 (meters) GEOID03 <br> <p> <b> VERT ORDER </b> FIRST CLASS I (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> 646,080. </td><td> 1,831,860. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/??) 26.106 (m) 85.65 (f) ADJUSTED 1 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: 10SEG519838(NAD 83) <br>MARKER: B = BOLT <br>SETTING: 30 = SET IN A LIGHT STRUCTURE <br>SP_SET: MONUMENT <br>STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY <br>SATELLITE: THE SITE LOCATION WAS REPORTED AS NOT SUITABLE FOR <br>SATELLITE: SATELLITE OBSERVATIONS - October 11, 1988 <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>1952 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1969 </td><td>GOOD </td><td>NGS</td></tr><tr><td>19881011</td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1952 AT SAN FRANCISCO. AT SAN FRANCISCO, ABOUT MIDWAY BETWEEN UNION AND FILBERT STREETS, IN THE TOP OF AN INSCRIBED GRANITE MONUMENT ON THE EAST SIDE OF WASHINGTON SQUARE, 41.0 FEET WEST OF THE WEST CURB OF STOCKTON STREET, AND 3.0 FEET ABOVE THE GROUND. <p> <h2>STATION RECOVERY (1969) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1969 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1988) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 RECOVERED IN GOOD CONDITION. HT0760B 109http://www.geocaching.com/mark/details.asp?PID=HT0760B 109GeocacheGeocacheB 109CGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>B 109</h1> <b> PID </b> HT0760 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 47 16. (N) 122 24 00. (W) SCALED <br> <b> NAVD 88 </b> 8.08 (+/-2cm) 26.5 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -32.47 (meters) GEOID03 <br> <p> <b> VERT ORDER </b> FIRST CLASS I (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> 644,620. </td><td> 1,832,660. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/??) 7.247 (m) 23.78 (f) ADJUSTED 1 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: 10SEG528824(NAD 83) <br>MARKER: DB = BENCH MARK DISK <br>SETTING: 36 = SET IN A MASSIVE STRUCTURE <br>SP_SET: BUILDING <br>STAMPING: B 109 1932 <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>1932 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1952 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1969 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1987 </td><td>GOOD </td><td>USPSQD</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1952 AT SAN FRANCISCO. AT SAN FRANCISCO, AT THE SOUTH CORNER OF THE INTERSECTION OF 2ND AND MISSION STREETS, SET VERTICALLY IN THE NORTHWEST BRICK FACE OF THE STEVENSON BUILDING (609 MISSION ST.), 1.7 FEET SOUTHWEST OF THE NORTH CORNER OF THE BUILDING, AND 4.0 FEET ABOVE THE SIDEWALK. <p> <h2>STATION RECOVERY (1969) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1969 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1987) </h2> <p>RECOVERY NOTE BY US POWER SQUADRON 1987 (RAS) RECOVERED IN GOOD CONDITION. HT1844B 2 USGShttp://www.geocaching.com/mark/details.asp?PID=HT1844B 2 USGSGeocacheGeocacheB 2 USGSUSGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>B 2 USGS</h1> <b> PID </b> HT1844 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> POINT BONITA (1993) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 45 52. (N) 122 30 39. (W) SCALED <br> <b> NAVD 88 </b> 8.20 (+/-2cm) 26.9 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -32.70 (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> 642,230. </td><td> 1,822,850. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/92) 7.370 (m) 24.18 (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: 10SEG430797(NAD 83) <br>MARKER: DD = SURVEY DISK <br>SETTING: 30 = SET IN A LIGHT STRUCTURE <br>SP_SET: SIDEWALK <br>STAMPING: B 2 1930 <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>1930 </td><td>MONUMENTED </td><td>USGS</td></tr><tr><td>1973 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1973 AT SAN FRANCISCO. AT SAN FRANCISCO, SAN FRANCISCO COUNTY, NEAR THE SOUTHWEST CORNER OF GOLDEN GATE PARK, ON GREAT HIGHWAY, IN THE TOP OF THE SOUTH END OF THE SEA WALL, 35 FEET WEST OF THE WEST EDGE OF THE PAVEMENT, 10.5 FEET WEST OF THE CENTERLINE OF THE SIDEWALK, 1.6 FEET NORTH OF THE SOUTH END OF THE SEA WALL, AND ABOUT 3-1/2 FEET HIGHER THAN THE SIDEWALK. A UNITED STATES GEOLOGICAL SURVEY STANDARD DISK, STAMPED B 2 1930. HT0693B 551http://www.geocaching.com/mark/details.asp?PID=HT0693B 551GeocacheGeocacheB 551CGSCGS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>B 551</h1> <b> PID </b> HT0693 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 48 38. (N) 122 28 39. (W) SCALED <br> <b> NAVD 88 </b> 5.679 (meters) 18.63 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.53 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 5.675 (meters) 18.62 (feet) COMP <br> <b> MODELED GRAV</b> 979,980.0 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS I <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> 647,290. </td><td> 1,825,890. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/??) 4.846 (m) 15.90 (f) ADJUSTED 1 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: 10SEG459849(NAD 83) <br>MARKER: DB = BENCH MARK DISK <br>SETTING: 38 = SET IN THE ABUTMENT OR PIER OF A LARGE BRIDGE <br>SP_SET: PIER <br>STAMPING: B 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 13, 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>1969 </td><td>GOOD </td><td>NGS</td></tr><tr><td>19880913</td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY COAST AND GEODETIC SURVEY 1956 AT SAN FRANCISCO. AT SAN FRANCISCO, IN R6W, T1S, AT FORT POINT, UNDER THE GOLDEN GATE BRIDGE, SET VERTICALLY IN THE EAST FACE OF THE SECOND CONCRETE PIER FROM THE SOUTH END OF THE BRIDGE, 82.4 FEET NORTHWEST OF THE NORTHWEST BRICK WALL OF FORT POINT, 28.2 FEET SOUTH OF THE NORTH EDGE OF THE CONCRETE SEAWALL, 1.8 FEET SOUTH OF THE NORTHEAST CORNER OF THE PIER, AND 2.8 FEET ABOVE THE GROUND. <p> <h2>STATION RECOVERY (1969) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1969 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1988) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 RECOVERED IN GOOD CONDITION. HT0724B 553 RESEThttp://www.geocaching.com/mark/details.asp?PID=HT0724B 553 RESETGeocacheGeocacheB 553 RESETCGSCGS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>B 553 RESET</h1> <b> PID </b> HT0724 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 48 25. (N) 122 25 08. (W) SCALED <br> <b> NAVD 88 </b> 6.221 (meters) 20.41 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.47 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 6.217 (meters) 20.40 (feet) COMP <br> <b> MODELED GRAV</b> 979,978.7 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS I <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> 646,780. </td><td> 1,831,040. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/??) 5.388 (m) 17.68 (f) ADJUSTED 1 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: 10SEG511845(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: B 553 RESET 1967 <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 20, 1988 <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1967 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1969 </td><td>GOOD </td><td>NGS</td></tr><tr><td>19880920</td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY COAST AND GEODETIC SURVEY 1967 AT SAN FRANCISCO. AT SAN FRANCISCO, AT THE NORTHWEST CORNER OF BEACH AND LEAVENWORTH STREETS, SET VERTICALLY IN THE SOUTH FACE OF THE SOUTH BRICK WALL OF THE CANNERY BUILDING, 35 FEET WEST OF THE CENTERLINE OF LEAVENWORTH, 34 FEET NORTH OF THE CENTERLINE OF BEACH STREET, 1.0 FOOT WEST OF THE SOUTHWEST CORNER OF THE BUILDING, AND 3.9 FEET ABOVE THE SIDEWALK. <p> <h2>STATION RECOVERY (1969) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1969 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 EXCEPTION. NOTE--THE MARK IS 0.3 M (1.0 FT) WEST OF THE SOUTHEAST CORNER OF THE BUILDING, NOT THE SOUTHWEST CORNER. HT0625B 571http://www.geocaching.com/mark/details.asp?PID=HT0625B 571GeocacheGeocacheB 571CGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>B 571</h1> <b> PID </b> HT0625 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO SOUTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 43 16. (N) 122 23 51. (W) SCALED <br> <b> NAVD 88 </b> 8.48 (+/-2cm) 27.8 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -32.52 (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> 637,220. </td><td> 1,832,730. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/92) 7.643 (m) 25.08 (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: 10SEG530750(NAD 83) <br>MARKER: DB = BENCH MARK DISK <br>SETTING: 30 = SET IN A LIGHT STRUCTURE <br>SP_SET: WALL <br>STAMPING: B 571 1939 <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>1939 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1956 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1965 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1956 AT SAN FRANCISCO. AT SAN FRANCISCO, AT THE NORTH END OF TUNNEL 4, IN THE TOP OF THE SECOND GRANITE CAP STONE AT THE NORTH END OF THE EAST WING WALL, ABOUT 75 FEET NORTH OF THE CENTER LINE OF SALINAS AVENUE CROSSING OVER THE NORTH END OF THE TUNNEL, 27 FEET NORTH OF THE NORTH PORTAL OF THE TUNNEL, 8.9 FEET EAST OF THE EAST RAIL OF THE EAST TRACK, AND ABOUT 2 1/2 FEET HIGHER THAN THE TRACK. <p> <h2>STATION RECOVERY (1965) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1965 RECOVERED IN GOOD CONDITION. HT0767B 995http://www.geocaching.com/mark/details.asp?PID=HT0767B 995GeocacheGeocacheB 995CGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>B 995</h1> <b> PID </b> HT0767 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 46 28. (N) 122 24 18. (W) SCALED <br> <b> NAVD 88 </b> 6.42 (+/-2cm) 21.1 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -32.48 (meters) GEOID03 <br> <p> <b> VERT ORDER </b> FIRST CLASS I (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> 643,150. </td><td> 1,832,190. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/92) 5.582 (m) 18.31 (f) ADJ UNCH 1 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: 10SEG523809(NAD 83) <br>MARKER: DB = BENCH MARK DISK <br>SETTING: 36 = SET IN A MASSIVE STRUCTURE <br>SP_SET: BUILDING <br>STAMPING: B 995 1965 <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>1965 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1969 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1987 </td><td>GOOD </td><td>USPSQD</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY COAST AND GEODETIC SURVEY 1965 AT SAN FRANCISCO. AT SAN FRANCISCO, AT THE NORTH CORNER OF SEVENTH AND BRYANT STREETS, AT THE NEW SAN FRANCISCO HALL OF JUSTICE BUILDING, CEMENTED IN A DRILL HOLE IN THE TOP OF THE 12-INCH WIDE CONCRETE WALL ON THE SOUTHEAST SIDE OF THE VENTILATOR INLET, 59.2 FEET NORTHEAST OF THE NORTHEAST CURB OF SEVENTH STREET, 41.0 FEET NORTHWEST OF THE NORTHWEST CURB OF BRYANT STREET, 16.0 FEET NORTHWEST OF THE SOUTH CORNER OF THE BUILDING, 5.0 FEET NORTHWEST OF THE CENTER OF A DOORWAY, 1.0 FOOT SOUTHWEST OF THE SOUTHWEST SIDE OF THE BUILDING, AND 0.9 FOOT ABOVE THE SIDEWALK. <p> <h2>STATION RECOVERY (1969) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1969 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1987) </h2> <p>RECOVERY NOTE BY US POWER SQUADRON 1987 (RAS) RECOVERED IN GOOD CONDITION. HT0775B C OF SFhttp://www.geocaching.com/mark/details.asp?PID=HT0775B C OF SFGeocacheGeocacheB C OF SFCA3290Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>B C OF SF</h1> <b> PID </b> HT0775 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 46 20. (N) 122 24 25. (W) SCALED <br> <b> NAVD 88 </b> 6.70 (+/-2cm) 22.0 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -32.48 (meters) GEOID03 <br> <p> <b> VERT ORDER </b> FIRST CLASS I (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> 642,900. </td><td> 1,832,020. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/92) 5.865 (m) 19.24 (f) ADJ UNCH 1 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: 10SEG522807(NAD 83) <br>MARKER: X = CHISELED CROSS <br>SETTING: 36 = SET IN A MASSIVE STRUCTURE <br>SP_SET: METAL COLUMN <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>CA3290</td></tr><tr><td>1965 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1969 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1965 AT SAN FRANCISCO. AT SAN FRANCISCO, AT THE EAST CORNER OF THE INTERSECTION OF 8TH AND BRYANT STREETS, ON THE TOP OF THE NORTHWEST CORNER OF THE CONCRETE BASE FOR A METAL COLUMN SUPPORTING A FREEWAY OVERCROSSING, 10.1 FEET SOUTHEAST OF THE SOUTHEAST CURB OF BRYANT STREET, 7.4 FEET NORTHEAST OF THE NORTHEAST CURB OF 8TH STREET, 0.6 FOOT SOUTHEAST OF THE NORTHEAST CORNER OF THE CONCRETE BASE, AND 1.7 FEET ABOVE THE SIDEWALK. <p> <h2>STATION RECOVERY (1969) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1969 RECOVERED IN GOOD CONDITION. HT2798BAY PARKhttp://www.geocaching.com/mark/details.asp?PID=HT2798BAY PARKGeocacheGeocacheBAY PARKCGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>BAY PARK</h1> <b> PID </b> HT2798 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO SOUTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1992)</b> 37 42 54.82253(N) 122 23 37.64214(W) ADJUSTED <br> <b> NAVD 88 </b> 129. (meters) 423. (feet) SCALED <br> <hr> <b> EPOCH DATE </b> 1991.35 <br> <b> LAPLACE CORR</b> 0.78 (seconds) DEFLEC99 <br> <b> GEOID HEIGHT</b> -32.53 (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> 636,556.348 1</td><td>833,045.845</td><td> MT </td><td>0.99992937</td><td> -1 ' 09 34.0"</td></tr><tr><td>SPC CA 3 </td><td>2,088,435.29 6</td><td>013,917.91 </td><td> sFT </td><td>0.99992937</td><td> -1 ' 09 34.0"</td></tr><tr><td>UTM 10 </td><td>4,174,392.705 </td><td>553,429.070</td><td> MT </td><td>0.99963516</td><td> +0 ' 22 15.1"</td></tr> </table> <p> <b> </b> Elev Factor x Scale Factor = Combined Factor <br> <b>SPC CA 3 </b> 0.99998489 x 0.99992937 = 0.99991426 <br> <b>UTM 10 </b> 0.99998489 x 0.99963516 = 0.99962005 <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> SAN BRUNO MOUNTAIN RESET </td><td>231° 13' 48.3"</td></tr><tr><td>UTM 10 </td><td> SAN BRUNO MOUNTAIN RESET </td><td>229° 41' 59.2"</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>HT3092</td><td>SAN FRANCISCO FERRY BLDG FS </td><td>APPROX. 8.9 KM</td><td>000° 06' 43.7"</td></tr><tr><td>HT2807</td><td>KSFO RADIO TOWER </td><td>APPROX. 3.6 KM</td><td>020° 36' 49.0"</td></tr><tr><td>HT2942</td><td>OAKLAND MOLE HIGH TANK </td><td>APPROX.11.9 KM</td><td>028° 04' 05.3"</td></tr><tr><td>HT2904</td><td>CAMPANILE UNIVERSITY OF CALIF </td><td>APPROX.21.1 KM</td><td>034° 29' 21.3"</td></tr><tr><td>HT2965</td><td>OAKLAND CITY HALL FLAGPOLE </td><td>APPROX.14.6 KM</td><td>046° 51' 54.9"</td></tr><tr><td>HT2960</td><td>OAKLAND TRIBUNE BLDG FLAGPOLE </td><td>APPROX.14.6 KM</td><td>047° 56' 52.1"</td></tr><tr><td>HT2725</td><td>HUNTERS POINT LIGHT </td><td>APPROX. 3.5 KM</td><td>063° 50' 25.5"</td></tr><tr><td>DB2817</td><td>BAY PARK RM 3 </td><td> 20.838 METERS</td><td>115° 23' </td></tr><tr><td>DB2815</td><td>BAY PARK RM 1 RESET </td><td> 22.314 METERS</td><td>115° 24' </td></tr><tr><td>DB2819</td><td>BAY PARK RM 5 </td><td> 22.320 METERS</td><td>115° 24' </td></tr><tr><td>DB2814</td><td>BAY PARK RM 1 </td><td> 23.481 METERS</td><td>116° 08' </td></tr><tr><td>DB2818</td><td>BAY PARK RM 4 </td><td> 13.109 METERS</td><td>180° 01' </td></tr><tr><td>HT2812</td><td>SAN BRUNO MTN E TRANSM TWR </td><td>APPROX. 4.6 KM</td><td>195° 19' 58.9"</td></tr><tr><td>HT2814</td><td>SAN BRUNO MTN MID TRANSM TWR </td><td>APPROX. 4.6 KM</td><td>195° 35' 43.8"</td></tr><tr><td>HT2813</td><td>SAN BRUNO MTN W TRANS TWR </td><td>APPROX. 4.6 KM</td><td>195° 47' 35.2"</td></tr><tr><td>HT2801</td><td>BAYSHORE CONSOL CHEM LOW TANK </td><td>APPROX. 2.3 KM</td><td>215° 09' 42.3"</td></tr><tr><td>HT2800</td><td>BAYSHORE CONSOL CHEM IND UP TK </td><td>APPROX. 2.4 KM</td><td>216° 02' 45.8"</td></tr><tr><td>HT2809</td><td>SAN BRUNO MTN TV STA KRON TWR </td><td>APPROX. 4.8 KM</td><td>229° 09' 22.9"</td></tr><tr><td>HT2825</td><td>SAN BRUNO MOUNTAIN RESET </td><td>APPROX. 4.8 KM</td><td>230° 04' 14.3"</td></tr><tr><td>HT2811</td><td>SAN BRUNO MTN TV STA KTVU TWR </td><td>APPROX. 4.8 KM</td><td>232° 05' 52.9"</td></tr><tr><td>HT2810</td><td>SAN BRUNO MTN TV STA KQED TWR </td><td>APPROX. 4.8 KM</td><td>233° 05' 21.4"</td></tr><tr><td>DB2816</td><td>BAY PARK RM 2 </td><td> 3.870 METERS</td><td>270° 35' </td></tr><tr><td>HT2824</td><td>MOUNT DAVIDSON CROSS </td><td>APPROX. 6.0 KM</td><td>295° 31' 48.1"</td></tr><tr><td>HT3046</td><td>SAN FRANCISCO TV KPIX KGO TWR </td><td>APPROX. 6.8 KM</td><td>310° 05' 29.5"</td></tr><tr><td>HT2797</td><td>KYA RADIO TOWER </td><td>147.363 METERS</td><td>310° 48' </td></tr><tr><td>HT3091</td><td>SAN FRANCISCO CTY HALL STEEPLE </td><td>APPROX. 7.5 KM</td><td>342° 30' 29.4"</td></tr><tr><td>HT3095</td><td>SAN FRANCISCO RAD STA KSAN TWR </td><td>APPROX. 7.1 KM</td><td>343° 30' 19.9"</td></tr><tr><td>HT3089</td><td>SAN FRANCISCO RAD STA KJBS TWR </td><td>APPROX. 8.6 KM</td><td>344° 22' 29.8"</td></tr><tr><td>HT3099</td><td>SAN FRANCISCO WM TAYLOR HOTEL </td><td>APPROX. 7.5 KM</td><td>346° 20' 16.3"</td></tr><tr><td>HT3090</td><td>SAN FRANCISCO R HILL APT ELEV </td><td>APPROX. 9.8 KM</td><td>346° 29' 30.5"</td></tr><tr><td>HT3107</td><td>SAN FRANCISCO PARK LAND FLAG </td><td>APPROX. 8.7 KM</td><td>349° 51' 24.8"</td></tr><tr><td>HT3108</td><td>SAN FRANCISCO FAIRMONT TR ELEV </td><td>APPROX. 8.7 KM</td><td>350° 52' 42.7"</td></tr><tr><td>HT3110</td><td>SAN FRANCISCO DRAKE HOTEL FS </td><td>APPROX. 8.3 KM</td><td>351° 03' 02.1"</td></tr><tr><td>HT3104</td><td>SAN FRANCISCO 450 SUTTER BLDG </td><td>APPROX. 8.3 KM</td><td>351° 28' 26.1"</td></tr><tr><td>HT3057</td><td>SAN FRANCISCO BANK AM DOME FP </td><td>APPROX. 7.9 KM</td><td>352° 40' 44.9"</td></tr><tr><td>HT3086</td><td>SAN FRANCISCO STANDARD OIL CHY </td><td>APPROX. 8.4 KM</td><td>355° 34' 09.6"</td></tr><tr><td>HT3111</td><td>SAN FRANCISCO BELL TEL BLDG </td><td>APPROX. 7.9 KM</td><td>356° 04' 19.8"</td></tr><tr><td>HT3085</td><td>SAN FRANCISCO SHELL OIL BLD FS </td><td>APPROX. 8.5 KM</td><td>356° 22' 04.7"</td></tr><tr><td>HT3054</td><td>SAN FRANCISCO PG AND E STACK </td><td>APPROX. 8.6 KM</td><td>358° 10' 03.2"</td></tr><tr><td>HT3058</td><td>SAN FRANCISCO MATSON BLDG TWR </td><td>APPROX. 8.6 KM</td><td>358° 22' 22.1"</td></tr><tr><td>HT3112</td><td>SOUTHERN PACIFIC CUPOLA </td><td>APPROX. 8.7 KM</td><td>359° 21' 56.8"</td></tr><tr><td>HT3076</td><td>SAN FRANCISCO SCHMIDT BLDG TWR </td><td>APPROX. 7.6 KM</td><td>359° 48' 24.5"</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> <b> NAD 83(1986)</b> 37 42 54.81551(N) 122 23 37.64109(W) AD(1984.00) 1 <br> <b> NAD 27 </b> 37 42 55.06000(N) 122 23 33.74100(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: 10SEG5342974393(NAD 83) <br>MARKER: DO = NOT SPECIFIED OR SEE DESCRIPTION <br>SETTING: 80 = SET IN A BOULDER <br>SP_SET: SET IN A DRILL HOLE IN BEDROCK <br>MAGNETIC: N = NO MAGNETIC MATERIAL <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>1932 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1935 </td><td>GOOD </td><td>CGS</td></tr><tr><td>1937 </td><td>GOOD </td><td>CGS</td></tr><tr><td>1940 </td><td>GOOD </td><td>CGS</td></tr><tr><td>1941 </td><td>GOOD </td><td>CGS</td></tr><tr><td>1948 </td><td>GOOD </td><td>CGS</td></tr><tr><td>1952 </td><td>GOOD </td><td>CGS</td></tr><tr><td>1954 </td><td>GOOD </td><td>CGS</td></tr><tr><td>1957 </td><td>GOOD </td><td>CGS</td></tr><tr><td>1958 </td><td>GOOD </td><td>CGS</td></tr><tr><td>1958 </td><td>GOOD </td><td>CGS</td></tr><tr><td>1960 </td><td>GOOD </td><td>CGS</td></tr><tr><td>1961 </td><td>GOOD </td><td>CGS</td></tr><tr><td>1962 </td><td>GOOD </td><td>CGS</td></tr><tr><td>1964 </td><td>GOOD </td><td>CGS</td></tr><tr><td>1964 </td><td>GOOD </td><td>CGS</td></tr><tr><td>1967 </td><td>GOOD </td><td>CGS</td></tr><tr><td>1976 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1977 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1977 </td><td>GOOD </td><td>USCG</td></tr><tr><td>1979 </td><td>GOOD </td><td>NOS</td></tr><tr><td>1982 </td><td>POOR </td><td>NOS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY COAST AND GEODETIC SURVEY 1935 STATION IS IN SAN FRANCISCO, ABOUT 30 METERS (98 FEET) NNW OF A 30-FOOT FLAGPOLE ON HIGHEST POINT OF HILL IN BAY VIEW PARK. HILL IS THE HIGHEST IN THE PARK AND THE ONLY ONE WITH OUTCROPPING ROCK. THE ENTRANCE TO BAY VIEW PARK IS 2 SHORT BLOCKS E OF INTERSECTION OF THIRD STREET AND BAY VIEW BOULEVARD. <p>STATION IS MARKED BY STANDARD BRONZE DISK WEDGED IN A DRILL HOLE IN A BOULDER. THE TOP OF THE MILK BOTTLE WAS SEALED OVER THE STATION MARK WITH CEMENT PADDY. <p>REFERENCE MARKS ARE STANDARD REFERENCE DISKS SET IN BOULDER AS DESCRIBED. <p>REFERENCE MARK NO. 1 IS NEAR HIGHEST PART OF HILL AND 23.52 METERS (77.2 FEET) FROM STATION S 63 DEG 51 MIN E. <p>REFERENCE MARK NO. 2 IS 3.87 METERS (12.7 FEET) FROM STATION N 89 DEG 25 MIN W. <p>STATION VISITATION KNOB (1903), MARKED BY A STANDARD STATION DISK IN BEDROCK, IS IN DEEP CREVICE OF OUTCROPPING ROCKS, 8.980 METERS (29.46 FEET) FROM REFERENCE MARK NO. 1 AND 31.157 METERS (102.22 FEET) FROM STATION S 53 DEG 59 MIN E. <p>IN 1935 CEMENT PADDY OVER STATION MARK HAD BEEN REMOVED. <p>REFERENCE MARK NO. 1 HAD BEEN LOOSENED AND TURNED SO THAT ARROW NOW POINTS AWAY FROM STATION MARK. BOTH REFERENCE MARKS HAVE BEEN DEFACED. <p>STATION MC KINLEY IS VISIBLE FROM GROUND N 7 DEG 20 MIN W. <p> <h2>STATION RECOVERY (1937) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1937 (RRL) RECOVERED. THE FLAGPOLE 98 FEET DISTANT HAS BEEN CUT DOWN. <p>REFERENCE MARK NO. 2 HAS BEEN REMOVED WITH A REMNANT OF THE CEMENT PADDY REMAINING. <p>REFERENCE MARK NO. 1 IS SATISFACTORY. <p>THIS AREA IS BEING PARKED BUT SO FAR THE VARIOUS MARKS INCLUDING VISITATION KNOB HAVE NOT BEEN DISTURBED THEREBY. <p> <h2>STATION RECOVERY (1940) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1940 (RDH) STATION IS IN SAN FRANCISCO ABOUT 700 YARDS WNW OF THE TIP OF CANDLESTICK POINT, AND ON THE HIGHEST HILL IN BAY PARK. THIS IS THE ONLY HILL IN THE PARK WITH OUTCROPPING ROCKS ON ITS TOP. A 450-FOOT RADIO TOWER (KYA) IS ABOUT 150 YARDS NW OF THE STATION. <p>THE STATION IS MARKED BY A STANDARD DISK SET IN A DRILL HOLE IN A BOULDER, AND IS STAMPED BAY PARK, 1932. <p>REFERENCE MARK NO. 1 IS A STANDARD DISK SET IN A DRILL HOLE IN A BOULDER, AND STAMPED BAY PARK NO. 1, 1932. IT IS NEAR THE HIGHEST PART OF THE HILL, AND 23.52 METERS ESE OF THE STATION. <p>REFERENCE MARK NO. 2 HAS BEEN REMOVED, BUT PART OF THE CEMENT PADDY REMAINS. THERE IS A SHALLOW HOLE WHERE THE SHANK OF THE MARK RESTED. <p> <h2>STATION RECOVERY (1941) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1941 (LSH) STATION RECOVERED AS DESCRIBED, EXCEPT THAT THE FLAG POLE IS NO LONGER IN PLACE. R.M. NO. 2 IS GONE. OTHER MARKS MENTIONED IN THE ORIGINAL DESCRIPTION WERE RECOVERED AS DESCRIBED. <p> <h2>STATION RECOVERY (1948) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1948 (WMG) RECOVERED AS DESCRIBED BY R.R.L. IN 1937. TO REACH STATION GO OUT 3RD ST., TO JAMESTOWN AVE., TURN E ON JAMESTOWN AVE. TO EXTREME END, THEN FOLLOW MOUNTAIN RD. TO STATION. <p> <h2>STATION RECOVERY (1952) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1952 (WHB) STATION WAS FOUND AS DESCRIBED. THE STATION MARK IS IN GOOD CONDITION. R.M. 1 IS BADLY BATTERED BUT STILL IN PLACE. R.M. 2 TABLET IS GONE BUT THE DRILL HOLE WITH SOME OF THE CEMENT AROUND IT WAS RECOVERED. <p>STATION VISITATION KNOB TABLET IS GONE, SOME OF THE CEMENT THAT WAS AROUND THE TABLET IS STILL IN PLACE BUT IT IS SO BADLY BATTERED THAT THE CENTER IS VERY INDEFINITE. <p>THE STATION MARK BAY PARK IS NOW A BRONZE PLUG WITH HOLE IN CENTER. <p>BEST REACHED AS FOLLOWS--AT THE INTERSECTION OF THIRD STREET AND JAMESTOWN, TAKE JAMESTOWN GOING E AND FOLLOW AROUND HILL, THENCE UPHILL TO TOP FOR 1.3 MILES AND END OF TRUCK TRAVEL. CLIMB NW ABOUT 150 FEET TO THE HIGHEST POINT ON THE ROCKY KNOB AND THE STATION. <p> <h2>STATION RECOVERY (1954) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1954 (HCA) STATION WAS FOUND AS DESCRIBED BY W.H.B. IN 1952. THE MARK IS IN GOOD CONDITION. TWO NEW REFERENCE MARKS WERE ESTABLISHED. <p>REFERENCE MARK 3 IS A STANDARD DISK, SET IN A DRILL HOLE IN A BOULDER. <p>REFERENCE MARK 4 IS A STANDARD DISK, SET IN A DRILL HOLE IN BEDROCK. <p> <h2>STATION RECOVERY (1957) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1957 (RLE) THE STATION MARK, REFERENCE MARKS 1 AND 4 WERE RECOVERED. THE STATION MARK HAS BEEN BROKEN, UNTIL ONLY THE SHANK WITH THE TRIANGLE REMAINS. REFERENCE MARK 1 APPARENTLY HAS BEEN REMOVED FROM ITS ORIGINAL POSITION AND REPLACED TO ANOTHER POSITION BY DRIVING IT INTO A CREVICE OF THE SAME BOULDER AS IT WAS ORIGINALLY SET. REFERENCE MARK 4 IS IN GOOD CONDITION. <p>A COMPLETE DESCRIPTION FOLLOWS-- <p>THE STATION IS LOCATED ON A HIGH HILL IN BAY VIEW PARK, AT THE S SIDE OF THE BAY VIEW SECTION OF SAN FRANCISCO. IT IS ABOUT 100 FT. N-NE AND ABOUT 10 FT. LOWER THAN THE HIGHEST PART OF THE HILL, IN A BOULDER THAT PROJECTS 4 IN. THE MARK IS THE SHANK OF A STANDARD DISK WITH A TRIANGLE AND DOT REMAINING ON THE TOP, WEDGED IN A DRILL HOLE. NO STAMPING REMAINS. <p>REFERENCE MARK 1 IS A STANDARD DISK DRIVEN PART WAY OF THE SHANK IN A CREVICE IN A LARGE BOULDER NEAR THE TOP OF THE HILL. IT HAS BEEN SO DEFACED THAT THE STAMPING IS ILLEGIBLE. <p>REFERENCE MARK 4 IS A STANDARD DISK, SET IN A DRILL HOLE ON A LARGE FLAT-TOPPED BOULDER ABOUT 8 FT. LOWER THAN THE STATION, AND ABOUT 5 FT. W OF A TRAIL LEADING UP THE HILL. IT IS STAMPED BAY PARK R.M. 4. <p>TO REACH THE STATION FROM THE INTERSECTION OF BAY SHORE FREEWAY AND THIRD STREET, IN THE S SIDE OF BAY VIEW AREA OF SAN FRANCISCO, GO N-NE ON THIRD STREET TO JAMESTOWN AVENUE. GO RIGHT ON JAMESTOWN AVENUE FOR 0.9 MI. (FOLLOWING CASEY DRIVE) TO A PARKING AREA ON THE RIGHT. FROM HERE, PACK UP THE TRAIL AND AROUND THE RIGHT SIDE OF THE HILL TO THE CREST OF THE RIDGE AND THE STATION AS DESCRIBED. <p> <h2>STATION RECOVERY (1958) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1958 (JCM) STATION WAS RECOVERED AS DESCRIBED BY W.H.B., 1952. <p>REACHED FROM THE INTERSECTION OF THIRD STREET AND KEY STREET, GO E ON KEY STREET ABOUT THREE BLOCKS TO THE END, THEN CONTINUE ON THE GRAVELED ROAD, UP THE N SIDE OF THE MOUNTAIN. FROM KEY STREET GO 0.5 MI. TO THE END OF TRUCK TRAVEL. THEN PACK UP GRADE AND TO THE N ABOUT 500 FT. TO THE STATION. <p>THE STATION MARK IS 130 FT. FROM THE CENTER OF A LARGE IRON TANK, N 89 DEG 30 MIN W. <p> <h2>STATION RECOVERY (1958) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1958 (JCM) STATION WAS RECOVERED AS DESCRIBED BY W.H.B., 1952 <p>REACHED FROM THE INTERSECTION OF THIRD STREET AND KEY STREET. GO EAST ON KEY STREET ABOUT THREE BLOCKS TO IT END, THEN CONTINUE ON THE GRAVELED ROAD, UP THE NORTH SIDE OF THE MOUNTAIN. FROM KEY STREET GO 0.5 MILE TO THE END OF TRUCK TRAVEL. THEN PACK UP, GRADE AND TO THE NORTH ABOUT 500 FEET TO THE STATION. <p>THE STATION MARK IS 130 FEET FROM THE CENTER OF A LARGE IRON TANK, N 89 DEG 30 MIN W. <p> <h2>STATION RECOVERY (1960) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1960 (JCM) THE STATION MARK, REFERENCE MARK NUMBER 1, AND REFERENCE MARK NUMBER 4 WERE RECOVERED IN GOOD CONDITION AND THE 1957 AND 1958 DESCRIPTIONS ARE ADEQUATE WITH THE FOLLOWING ADDITIONS-- <p>HEIGHT OF TRIPOD--1 METER <p> <h2>STATION RECOVERY (1961) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1961 (IRR) THE STATION MARK, REFERENCE MARK NUMBER 1, AND REFERENCE MARK NUMBER 4 WERE RECOVERED IN GOOD CONDITION AND THE 1957 AND 1958 DESCRIPTIONS ARE ADEQUATE. <p> <h2>STATION RECOVERY (1962) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1962 (IRR) THE STATION MARK AND REFERENCE MARKS NUMBER 1 AND 4 WERE RECOVERED IN GOOD CONDITION AND THE 1957 AND 1958 DESCRIPTIONS ARE ADEQUATE. <p> <h2>STATION RECOVERY (1964) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1964 (PAW) THE STATION MARK AND REFERENCE MARKS NUMBER 1 AND 4 WERE RECOVERED IN GOOD CONDITION AND THE 1957 AND 1958 DESCRIPTIONS ARE ADEQUATE. <p>R.M. 1 IS ABOUT 8 FEET HIGHER THAN THE STATION MARK. <p>R.M. 4 IS ABOUT 12 FEET LOWER THAN THE STATION MARK. <p> <h2>STATION RECOVERY (1964) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1964 (PAS) THE STATION AND REFERENCE MARKS 1 AND 4 WERE RECOVERED AS DESCRIBED BY R.L.E. IN 1957. <p> <h2>STATION RECOVERY (1967) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1967 (EHS) THE STATION MARK AND REFERENCE MARK 4 WERE RECOVERED IN GOOD CONDITION. THE REFERENCE MARK 1 DISK WAS FOUND TO HAVE BEEN PRIED OUT AND WAS MISSING SO REFERENCE MARK 5 WAS SET ON THIS DATE IN THE OLD REFERENCE MARK 1 DRILL HOLE. THE PREVIOUS DESCRIPTIONS ARE ADEQUATE WITH THE FOLLOWING ADDITIONS-- <p>REFERENCE MARK 5 IS A COAST AND GEODETIC SURVEY REFERENCE MARK DISK STAMPED BAY PARK NO 5 1932 1967 CEMENTED IN A DRILL HOLE IN THE TOP OF A LARGE BOULDER PROJECTING ABOUT 4 FEET ABOVE THE GROUND AND IS ABOUT 8 FEET HIGHER THAN THE STATION MARK. <p>HEIGHT OF TRIPOD--1 METER <p>AIRLINE DISTANCE AND DIRECTION FROM NEAREST TOWN--AT SAN FRANCISCO <p> <h2>STATION RECOVERY (1976) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1976 (CA) THE STATION AND REFERENCE MARKS 4 AND 5 WERE RECOVERED IN GOOD CONDITION AS DESCRIBED IN 1957 AND 1958. TO REACH THE STATION FROM THE END OF KEY STREET, WALK UP THE GRAVEL ROAD IN A SE DIRECTION, THEN FOLLOW THE RIGHT FORK TO THE NW, PAST THE KYA RADIO TOWER AND TO THE WEST SIDE OF THE HILL. FOLLOW THE FOOT TRAIL EAST UP THE RIDGE AND TO THE STATION. <p> <h2>STATION RECOVERY (1977) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1977 (CLN) THE STATION MARK (THE 1-INCH-IN-DIAMETER CENTER PART OF THE ORIGINAL STATION MARK DISK WITH THE TRIANGLE AND HOLE IN ITS CENTER) AND REFERENCE MARKS 4 AND 5 WERE RECOVERED IN GOOD CONDITION AND THE PREVIOUS DESCRIPTIONS ARE ADEQUATE WITH THE FOLLOWING ADDITION-- <p>THE STATION MARK WAS STAMPED BAY PARK 1932 ON THIS DATE. <p>AIRLINE DISTANCE AND DIRECTION FROM NEAREST TOWN AT SAN FRANCISCO. <p> <h2>STATION RECOVERY (1977) </h2> <p>RECOVERY NOTE BY US COAST GUARD 1977 (RLM) UNREADABLE BAD, ONLY CENTER MARK REMAINS. <p> <h2>STATION RECOVERY (1979) </h2> <p>RECOVERY NOTE BY NATIONAL OCEAN SERVICE 1979 (DRT) STATION AND REFERENCE MARKS 4 AND 5 WERE RECOVERED AS DESCRIBED IN 1958, 1960 AND 1967. <p>DESCRIBED BY F.L. ROSARIO <p> <h2>STATION RECOVERY (1982) </h2> <p>RECOVERY NOTE BY NATIONAL OCEAN SERVICE 1982 (PRC) THE BOULDER ON WHICH THE STATION IS LOCATED WAS FOUND TO BE MOVEABLE AND SOMEWHAT UNSTABLE. DESCRIBED BY F.L. ROSARIO HT3406BEACH NORTH WIRELESShttp://www.geocaching.com/mark/details.asp?PID=HT3406BEACH NORTH WIRELESSGeocacheGeocacheBEACH NORTH WIRELESSCGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>BEACH NORTH WIRELESS</h1> <b> PID </b> HT3406 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> POINT BONITA (1993) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1992)</b> 37 45 08.83087(N) 122 30 25.10935(W) ADJUSTED <br> <b> NAVD 88 </b> 101. (meters) 331. (feet) SCALED <br> <hr> <b> EPOCH DATE </b> 1991.35 <br> <b> LAPLACE CORR</b> 6.63 (seconds) DEFLEC99 <br> <b> GEOID HEIGHT</b> -32.71 (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> 640,894.665 1</td><td>823,157.643</td><td> MT </td><td>0.99992918</td><td> -1 ' 13 43.4"</td></tr><tr><td>SPC CA 3 </td><td>2,102,668.58 5</td><td>981,476.37 </td><td> sFT </td><td>0.99992918</td><td> -1 ' 13 43.4"</td></tr><tr><td>UTM 10 </td><td>4,178,464.155 </td><td>543,431.529</td><td> MT </td><td>0.99962323</td><td> +0 ' 18 06.7"</td></tr> </table> <p> <b> </b> Elev Factor x Scale Factor = Combined Factor <br> <b>SPC CA 3 </b> 0.99998931 x 0.99992918 = 0.99991849 <br> <b>UTM 10 </b> 0.99998931 x 0.99962323 = 0.99961254 <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 LOBOS SOUTH WIRELESS </td><td>006° 13' 19.7"</td></tr><tr><td>UTM 10 </td><td> POINT LOBOS SOUTH WIRELESS </td><td>004° 41' 29.6"</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>HT3402</td><td>POINT LOBOS SOUTH WIRELESS </td><td>APPROX. 3.1 KM</td><td>004° 59' 36.3"</td></tr><tr><td>HT3403</td><td>POINT LOBOS NORTH WIRELESS </td><td>APPROX. 3.2 KM</td><td>005° 04' 53.4"</td></tr><tr><td>HT3407</td><td>BEACH SOUTH WIRELESS </td><td>109.611 METERS</td><td>177° 04' </td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> <b> NAD 83(1986)</b> 37 45 08.83192(N) 122 30 25.09766(W) AD(1984.00) 3 <br> <b> NAD 27 </b> 37 45 09.06700(N) 122 30 21.19600(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: 10SEG4343278464(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>1958 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1966 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY COAST AND GEODETIC SURVEY 1958 (JCM) THERE IS A WIRELESS STATION AT OR NEAR WHERE THIS IS PLOTTED ON THE SAN FRANCISCO ENTRANCE TRIANGULATION DIAGRAM. THIS INTERSECTION STATION SHOULD BE CONSIDERED AS NO GOOD. <p> <h2>STATION RECOVERY (1966) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1966 (EHS) THE WIRELESS HAS BEEN REMOVED. STATION LOST. <p>AIRLINE DISTANCE AND DIRECTION FROM NEAREST TOWN--AT SAN FRANCISCO HT3407BEACH SOUTH WIRELESShttp://www.geocaching.com/mark/details.asp?PID=HT3407BEACH SOUTH WIRELESSGeocacheGeocacheBEACH SOUTH WIRELESSCGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>BEACH SOUTH WIRELESS</h1> <b> PID </b> HT3407 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> POINT BONITA (1993) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1992)</b> 37 45 05.28030(N) 122 30 24.88022(W) ADJUSTED <br> <b> NAVD 88 </b> <br> <hr> <b> EPOCH DATE </b> 1991.35 <br> <b> LAPLACE CORR</b> 6.64 (seconds) DEFLEC99 <br> <b> GEOID HEIGHT</b> -32.71 (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> <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> 640,785.110 1</td><td>823,160.903</td><td> MT </td><td>0.99992918</td><td> -1 ' 13 43.3"</td></tr><tr><td>SPC CA 3 </td><td>2,102,309.15 5</td><td>981,487.06 </td><td> sFT </td><td>0.99992918</td><td> -1 ' 13 43.3"</td></tr><tr><td>UTM 10 </td><td>4,178,354.760 </td><td>543,437.713</td><td> MT </td><td>0.99962324</td><td> +0 ' 18 06.8"</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> <b> NAD 83(1986)</b> 37 45 05.28127(N) 122 30 24.86852(W) AD(1984.00) 4 <br> <b> NAD 27 </b> 37 45 05.51500(N) 122 30 20.96400(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: 10SEG4343878355(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>1958 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1966 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY COAST AND GEODETIC SURVEY 1958 (JCM) THERE IS A WIRELESS STATION AT OR NEAR WHERE THIS IS PLOTTED ON THE SAN FRANCISCO ENTRANCE TRIANGULATION DIAGRAM. THIS INTERSECTION STATION SHOULD BE CONSIDERED AS NO GOOD. <p> <h2>STATION RECOVERY (1966) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1966 (EHS) THE WIRELESS HAS BEEN REMOVED. STATION LOST. <p>AIRLINE DISTANCE AND DIRECTION FROM NEAREST TOWN--AT SAN FRANCISCO AF8691BERKELEY BREAKWATER LIGHT 2http://www.geocaching.com/mark/details.asp?PID=AF8691BERKELEY BREAKWATER LIGHT 2GeocacheGeocacheBERKELEY BREAKWATER LIGHT 2NOSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>BERKELEY BREAKWATER LIGHT 2</h1> <b> PID </b> AF8691 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> OAKLAND WEST (1993) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1992)</b> 37 50 51.83254(N) 122 21 37.99525(W) ADJUSTED <br> <b> NAVD 88 </b> <br> <hr> <b> EPOCH DATE </b> 1991.35 <br> <b> LAPLACE CORR</b> 1.28 (seconds) DEFLEC99 <br> <b> GEOID HEIGHT</b> -32.38 (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> <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> 651,200.429 1</td><td>836,267.779</td><td> MT </td><td>0.99993060</td><td> -1 ' 08 20.7"</td></tr><tr><td>SPC CA 3 </td><td>2,136,480.07 6</td><td>024,488.54 </td><td> sFT </td><td>0.99993060</td><td> -1 ' 08 20.7"</td></tr><tr><td>UTM 10 </td><td>4,189,113.328 </td><td>556,257.805</td><td> MT </td><td>0.99963898</td><td> +0 ' 23 32.5"</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: 10SEG5625889113(NAD 83) <br>MARKER: 14 = NAVIGATION LIGHT <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 ABOUT 3-1/2 MILES WEST OF BERKELEY, ABOUT 1-1/4 MILES NORTHEAST OF TREASURE ISLAND AND NEAR THE OUTER END OF BERKELEY BREAKWATER. THE STATION IS FLASHING WHITE LIGHT ON A LONE PILE STRUCTURE, DESIGNATED AS NO.712 IN THE 1978 USCG LIGHT LIST, VOL. 3. DESCRIBED BY R.B. MELBY HT2804BERNALhttp://www.geocaching.com/mark/details.asp?PID=HT2804BERNALGeocacheGeocacheBERNALCGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>BERNAL</h1> <b> PID </b> HT2804 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO SOUTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1992)</b> 37 44 28.85732(N) 122 26 15.11746(W) ADJUSTED <br> <b> NAVD 88 </b> 196. (meters) 643. (feet) SCALED <br> <hr> <b> EPOCH DATE </b> 1991.35 <br> <b> LAPLACE CORR</b> 2.48 (seconds) DEFLEC99 <br> <b> GEOID HEIGHT</b> -32.54 (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> 639,533.640 1</td><td>829,250.063</td><td> MT </td><td>0.99992919</td><td> -1 ' 11 10.4"</td></tr><tr><td>SPC CA 3 </td><td>2,098,203.28 6</td><td>001,464.58 </td><td> sFT </td><td>0.99992919</td><td> -1 ' 11 10.4"</td></tr><tr><td>UTM 10 </td><td>4,177,266.707 </td><td>549,556.275</td><td> MT </td><td>0.99963025</td><td> +0 ' 20 39.5"</td></tr> </table> <p> <b> </b> Elev Factor x Scale Factor = Combined Factor <br> <b>SPC CA 3 </b> 0.99997437 x 0.99992919 = 0.99990357 <br> <b>UTM 10 </b> 0.99997437 x 0.99963025 = 0.99960463 <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> KYA RADIO TOWER </td><td>127° 59' 18.4"</td></tr><tr><td>UTM 10 </td><td> KYA RADIO TOWER </td><td>126° 27' 28.5"</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>DB2846</td><td>BERNAL RM 1 </td><td> 16.152 METERS</td><td>043° 37' </td></tr><tr><td>DB2847</td><td>BERNAL RM 2 </td><td> 9.041 METERS</td><td>119° 03' </td></tr><tr><td>HT2797</td><td>KYA RADIO TOWER </td><td>APPROX. 4.7 KM</td><td>126° 48' 08.0"</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> <b> NAD 83(1986)</b> 37 44 28.85065(N) 122 26 15.11754(W) AD(1984.00) 3 <br> <b> NAD 27 </b> 37 44 29.10000(N) 122 26 11.21300(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: 10SEG4955677267(NAD 83) <br>MARKER: DO = NOT SPECIFIED OR SEE DESCRIPTION <br>SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT <br>SP_SET: TOP OF SQUARE CONCRETE MONUMENT <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1957 </td><td>MONUMENTED </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 1957 (RLE) THE STATION IS LOCATED IN THE S CENTRAL CITY LIMITS OF SAN FRANCISCO, ON A PROMINENT GRASS COVERED HILL, ABOUT 1 MI. NE OF THE CITY COLLEGE OF SAN FRANCISCO AND IS ON THE HIGHEST POINT OF THE HILL. <p>THE STATION MARK, A STANDARD DISK, STAMPED BERNAL 1957 IS SET IN THE TOP OF A 12-IN. CONCRETE CYLINDER FLUSH WITH THE SURFACE OF THE GROUND (NOTES 1B AND 7A). <p>REFERENCE MARK 1, A STANDARD DISK, STAMPED BERNAL NO 1 1957, IS CEMENTED IN A DRILL HOLE IN THE TOP OF A BOULDER PROJECTING ABOUT 3 IN. (NOTE 12C). IT IS ABOUT 1 FT. HIGHER THAN THE STATION. <p>REFERENCE MARK 2, A STANDARD DISK, STAMPED BERNAL NO 2 1957, IS SET IN THE TOP OF A 12-IN. CONCRETE CYLINDER FLUSH WITH THE SURFACE OF THE GROUND (NOTE 11B). IT IS ABOUT 1 FT. LOWER THAN THE STATION. <p>STATION CITY COLLEGE MAY BE USED AS AN AZIMUTH. <p>TO REACH THE STATION FROM THE INTERSECTION OF BAYSHORE BOULEVARD (U.S. HIGHWAY 101 BYPASS) AND GENEVA AVENUE IN THE SE CITY LIMITS OF SAN FRANCISCO, TURN LEFT (W) AND GO W ON GENEVA AVENUE FOR 2.5 MI. TO THE INTERSECTION OF SAN JOSE AVENUE, TURN RIGHT (N) ON SAN JOSE AVENUE AND GO N FOR 1.9 MI. TO DOLORES STREET, CONTINUE STRAIGHT AHEAD (N) ON DOLORES STREET FOR 0.6 MI. TO CLIPPER STREET, TURN LEFT (W) ON CLIPPER STREET AND GO 0.5 MI. TO THE INTERSECTION OF DOUGLAS STREET, TURN LEFT (S) ON DOUGLAS STREET AND GO 0.4 MI. TO A TRACK ROAD AT THE END OF 28TH AND DOUGLAS STREET. CONTINUE STRAIGHT AHEAD (S) ON THE TRACK ROAD UP THE STEEP HILL FOR 0.3 MI. TO THE TOP OF THE HILL AND THE STATION AS DESCRIBED. <p>NOTE--THE STATION MAY BE DRIVEN IN DRY WEATHER WITH A TWO-WHEEL DRIVE VEHICLE. <p> <h2>STATION RECOVERY (1960) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1960 (IRR) THE STATION MARK AND REFERENCE MARKS WERE RECOVERED IN GOOD CONDITION. THE STATION MARK AND REFERENCE MARK NUMBER 2 WOULD SOON HAVE BEEN DESTROYED DURING SLOPE GRADING SO BERNAL 2 WAS ESTABLISHED 11.739 M. 38.51J FT. TO THE NORTH AND IN DIRECT LINE AWAY FROM STATION SAN BRUNO MOUNTAIN 1899 AND 1.74 FT. LOWER. AFTER BENRAL 2 WAS ESTABLISHED THE BERNAL 1957 SURFACE STATION MARK DISK AND THE REFERENCE MARK NUMBER 2 DISK WERE REMOVED FROM THE POSTS IN WHICH THEY WERE SET. HT2805BERNAL 2http://www.geocaching.com/mark/details.asp?PID=HT2805BERNAL 2GeocacheGeocacheBERNAL 2CGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>BERNAL 2</h1> <b> PID </b> HT2805 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO SOUTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1992)</b> 37 44 29.23780(N) 122 26 15.13143(W) ADJUSTED <br> <b> NAVD 88 </b> 195. (meters) 640. (feet) SCALED <br> <hr> <b> EPOCH DATE </b> 1991.35 <br> <b> LAPLACE CORR</b> 2.48 (seconds) DEFLEC99 <br> <b> GEOID HEIGHT</b> -32.54 (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. 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> 639,545.374 1</td><td>829,249.963</td><td> MT </td><td>0.99992919</td><td> -1 ' 11 10.4"</td></tr><tr><td>SPC CA 3 </td><td>2,098,241.78 6</td><td>001,464.25 </td><td> sFT </td><td>0.99992919</td><td> -1 ' 11 10.4"</td></tr><tr><td>UTM 10 </td><td>4,177,278.431 </td><td>549,555.863</td><td> MT </td><td>0.99963025</td><td> +0 ' 20 39.4"</td></tr> </table> <p> <b> </b> Elev Factor x Scale Factor = Combined Factor <br> <b>SPC CA 3 </b> 0.99997453 x 0.99992919 = 0.99990372 <br> <b>UTM 10 </b> 0.99997453 x 0.99963025 = 0.99960479 <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> SAN BRUNO MOUNTAIN RESET </td><td>179° 30' 59.0"</td></tr><tr><td>UTM 10 </td><td> SAN BRUNO MOUNTAIN RESET </td><td>177° 59' 09.2"</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>DB2846</td><td>BERNAL RM 1 </td><td> 11.490 METERS</td><td>090° 12' </td></tr><tr><td>HT2803</td><td>BERNAL 3 </td><td> 61.729 METERS</td><td>132° 15' </td></tr><tr><td>HT2825</td><td>SAN BRUNO MOUNTAIN RESET </td><td>APPROX. 6.0 KM</td><td>178° 19' 48.6"</td></tr><tr><td>DB2848</td><td>BERNAL 2 RM 3 </td><td> 18.883 METERS</td><td>350° 57' </td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> <b> NAD 83(1986)</b> 37 44 29.23133(N) 122 26 15.13151(W) AD(1984.00) 3 <br> <b> NAD 27 </b> 37 44 29.48100(N) 122 26 11.22700(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: 10SEG4955677278(NAD 83) <br>MARKER: DO = NOT SPECIFIED OR SEE DESCRIPTION <br>SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT <br>SP_SET: TOP OF SQUARE CONCRETE MONUMENT <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1960 </td><td>MONUMENTED </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 1960 (IRR) THE STATION IS LOCATED NEAR THE TOP OF A PROMINENT, GRASSY HILL IN THE DIAMOND HEIGHTS DISTRICT OF SAN FRANCISCO, AIRLINE ABOUT 2-1/4 MILES NORTH OF THE SAN MATEO-SAN FRANCISCO COUNTY LINE, 1 MILE NORTHEAST OF SAN FRANCISCO CITY COLLEGE, AND 1/2 MILE SOUTH-SOUTHWEST OF JAMES LICK JUNIOR HIGH SCHOOL. <p>TO REACH THE STATION FROM THE INTERSECTION OF BAYSHORE BOULEVARD (U.S. HIGHWAY 101 BYPASS) AND GENEVA AVENUE JUST SOUTH OF THE CITY LIMITS OF SAN FRANCISCO GO WEST ON GENEVA AVENUE 2.5 MILES, THENCE TURN RIGHT AND GO NORTHEAST ON SAN JOSE AVENUE 1.9 MILES, THENCE TURN LEFT AND GO NORTH ON DOLORES STREET 0.6 MILE, THENCE TURN LEFT AND GO WEST ON CLIPPER STREET 0.5 MILE, THENCE TURN LEFT AND GO SOUTH ON DOUGLAS STREET 0.4 MILE, THENCE CONTINUE SOUTH ON A TRACK ROAD 0.3 MILE TO THE TOP OF THE HILL AND THE STATION. <p>THE STATION MARK IS A STANDARD DISK STAMPED BERNAL 2 1960 SET IN THE TOP OF A 12-INCH CONCRETE CYLINDER THAT IS FLUSH WITH THE GROUND. IT IS ABOUT 35 FEET NORTHWEST OF AND ABOUT 2 FEET LOWER THAN THE HIGHEST POINT OF THE HILL, 9 FEET NORTHEAST OF THE EDGE OF THE GRADED SLOPE, AND 2.2 FEET NORTHEAST OF A WOODEN WITNESS POST. <p>REFERENCE MARK NUMBER 1 (SET IN 1957 AS A REFERENCE MARK TO BERNAL 1957) IS A STANDARD DISK STAMPED BERNAL NO 1 1957 CEMENTED IN A DRILL HOLE IN THE TOP OF A BOULDER THAT PROJECTS 6 INCHES ABOVE THE GROUND AND IS ABOUT 2 FEET HIGHER THAN THE STATION. <p>REFERENCE MARK NUMBER 3 IS A STANDARD DISK STAMPED BERNAL 2 NO 3 1960 CEMENTED IN A DRILL HOLE IN THE TOP OF OUTCROPPING BEDROCK THAT PROJECTS 4 FEET ABOVE THE GROUND AND IS ABOUT 3 FEET LOWER THAN THE STATION. <p> <h2>STATION RECOVERY (1960) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1960 (IRR) THE STATION MARK AND REFERENCE MARKS WERE RECOVERED IN GOOD CONDITION AND THE DISTANCES AND DIRECTIONS TO THE REFERENCE MARKS AS SHOWN IN THE ORIGINAL DESCRIPTION WERE FOUND TO CHECK. <p>THE HILL ON WHICH THE MARKS WERE LOCATED WAS TO BE GRADED DOWN SO BERNAL 3 WAS ESTABLISHED 202.5 FEET TO THE SOUTHEAST AT AN OUTCROPPING OF ROCK WHICH, ACCORDING TO PRESENT PLANS, IS THE ONLY PORTION OF THE HILL THAT WILL NOT BE DISTURBED DURING THE GRADING. <p>AFTER BERNAL 3 WAS ESTABLISHED THE BERNAL 2 STATION MARK DISK AND REFERENCE MARK DISKS WERE REMOVED. HT2803BERNAL 3http://www.geocaching.com/mark/details.asp?PID=HT2803BERNAL 3GeocacheGeocacheBERNAL 3CGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>BERNAL 3</h1> <b> PID </b> HT2803 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO SOUTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1992)</b> 37 44 27.89159(N) 122 26 13.26514(W) ADJUSTED <br> <b> NAVD 88 </b> 196. (meters) 643. (feet) SCALED <br> <hr> <b> EPOCH DATE </b> 1991.35 <br> <b> LAPLACE CORR</b> 2.46 (seconds) DEFLEC99 <br> <b> GEOID HEIGHT</b> -32.54 (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. 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> 639,502.935 1</td><td>829,294.784</td><td> MT </td><td>0.99992919</td><td> -1 ' 11 09.3"</td></tr><tr><td>SPC CA 3 </td><td>2,098,102.55 6</td><td>001,611.30 </td><td> sFT </td><td>0.99992919</td><td> -1 ' 11 09.3"</td></tr><tr><td>UTM 10 </td><td>4,177,237.216 </td><td>549,601.788</td><td> MT </td><td>0.99963030</td><td> +0 ' 20 40.6"</td></tr> </table> <p> <b> </b> Elev Factor x Scale Factor = Combined Factor <br> <b>SPC CA 3 </b> 0.99997437 x 0.99992919 = 0.99990357 <br> <b>UTM 10 </b> 0.99997437 x 0.99963030 = 0.99960468 <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> SAN BRUNO MOUNTAIN RESET </td><td>179° 56' 39.1"</td></tr><tr><td>UTM 10 </td><td> SAN BRUNO MOUNTAIN RESET </td><td>178° 24' 49.2"</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>HT2825</td><td>SAN BRUNO MOUNTAIN RESET </td><td>APPROX. 6.0 KM</td><td>178° 45' 29.8"</td></tr><tr><td>DB2849</td><td>BERNAL 3 RM 4 </td><td> 3.908 METERS</td><td>194° 56' </td></tr><tr><td>DB2850</td><td>BERNAL 3 RM 5 </td><td> 3.509 METERS</td><td>305° 12' </td></tr><tr><td>HT2805</td><td>BERNAL 2 </td><td> 61.729 METERS</td><td>312° 15' </td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> <b> NAD 83(1986)</b> 37 44 27.88510(N) 122 26 13.26519(W) AD(1984.00) 3 <br> <b> NAD 27 </b> 37 44 28.13400(N) 122 26 09.36100(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: 10SEG4960277237(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>1960 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1961 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY COAST AND GEODETIC SURVEY 1960 (IRR) THE STATION IS LOCATED NEAR THE TOP OF A SHARP, ROCKY HILL THAT PROJECTS ABOVE THE GRADED SLOPES AROUND IT IN THE DIAMOND HEIGHTS DISTRICT OF SAN FRANCISCO, AIRLINE ABOUT 2-1/4 MILES NORTH OF THE SAN MATEO-SAN FRANCISCO COUNTY LINE, 1 MILE NORTHEAST OF SAN FRANCISCO CITY COLLEGE, AND 1/2 MILE SOUTH-SOUTHWEST OF JAMES LICK JUNIOR HIGH SCHOOL. <p>TO REACH THE STATION FROM THE INTERSECTION OF BAYSHORE BOULEVARD (U.S. HIGHWAY 101 BYPASS) AND GENEVA AVENUE (JUST SOUTH OF THE CITY LIMITS OF SAN FRANCISCO) GO WEST ON GENEVA AVENUE 2.5 MILES, THENCE TURN RIGHT AND GO NORTHEAST ON SAN JOSE AVENUE 1.9 MILES, THENCE TURN LEFT AND GO NORTH ON DOLORES STREET 0.6 MILE, THENCE TURN LEFT AND GO WEST ON CLIPPER STREET 0.5 MILE, THENCE TURN LEFT AND GO SOUTH ON DOUGLAS STREET 0.4 MILE, THENCE CONTINUE SOUTH ON A GRADED ROAD 0.3 MILE TO THE TOP OF THE HILL AND THE STATION. <p>THE STATION MARK IS A STANDARD DISK STAMPED BERNAL 3 1960 CEMENTED IN A DRILL HOLE IN OUTCROPPING BEDROCK THAT PROJECTS 2 INCHES ABOVE THE GROUND. IT IS 7 FEET WEST-NORTHWEST OF AND 3 FEET LOWER THAN THE POINT OF OUTCROPPING ROCK THAT FORMS THE HIGHEST PART OF THE HILL. <p>REFERENCE MARK NUMBER 4 IS A STANDARD DISK STAMPED BERNAL 3 NO 4 1960 CEMENTED IN A DRILL HOLE IN OUTCROPPING BEDROCK THAT PROJECTS 1 FOOT ABOVE THE GROUND ON THE SOUTHWEST SIDE AND IS FLUSH WITH THE GROUND ON THE NORTHEAST SIDE AND IS ABOUT 2 FEET LOWER THAN THE STATION. <p>REFERENCE MARK NUMBER 5 IS A STANDARD DISK STAMPED BERNAL 3 NO 5 1960 CEMENTED IN A DRILL HOLE IN OUTCROPPING BEDROCK THAT PROJECTS 3 INCHES ABOVE THE GROUND AND IS ABOUT 18 INCHES LOWER THAN THE STATION. <p> <h2>STATION RECOVERY (1961) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1961 (IRR) THE STATION MARK AND REFERENCE MARKS WERE DESTROYED DURING GRADING OPERATIONS WHEN THE ENTIRE HILL ON WHICH THE MARKS WERE LOCATED WAS LEVELED IN MAY 1961. HT3459BLACK BLUFFhttp://www.geocaching.com/mark/details.asp?PID=HT3459BLACK BLUFFGeocacheGeocacheBLACK BLUFFCGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>BLACK BLUFF</h1> <b> PID </b> HT3459 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1992)</b> 37 43 08.82516(N) 122 30 15.36597(W) ADJUSTED <br> <b> NAVD 88 </b> 47. (meters) 154. (feet) SCALED <br> <hr> <b> EPOCH DATE </b> 1991.35 <br> <b> LAPLACE CORR</b> 6.72 (seconds) DEFLEC99 <br> <b> GEOID HEIGHT</b> -32.77 (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> 637,190.772 1</td><td>823,316.859</td><td> MT </td><td>0.99992933</td><td> -1 ' 13 37.5"</td></tr><tr><td>SPC CA 3 </td><td>2,090,516.72 5</td><td>981,998.73 </td><td> sFT </td><td>0.99992933</td><td> -1 ' 13 37.5"</td></tr><tr><td>UTM 10 </td><td>4,174,766.968 </td><td>543,689.536</td><td> MT </td><td>0.99962351</td><td> +0 ' 18 11.8"</td></tr> </table> <p> <b> </b> Elev Factor x Scale Factor = Combined Factor <br> <b>SPC CA 3 </b> 0.99999779 x 0.99992933 = 0.99992712 <br> <b>UTM 10 </b> 0.99999779 x 0.99962351 = 0.99962130 <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> BLACK RIDGE 2 </td><td>046° 41' 07.4"</td></tr><tr><td>UTM 10 </td><td> BLACK RIDGE 2 </td><td>045° 09' 18.1"</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>HT3402</td><td>POINT LOBOS SOUTH WIRELESS </td><td>APPROX. 6.8 KM</td><td>000° 16' 56.7"</td></tr><tr><td>HT3403</td><td>POINT LOBOS NORTH WIRELESS </td><td>APPROX. 6.9 KM</td><td>000° 21' 37.0"</td></tr><tr><td>HT2794</td><td>BLACK RIDGE 2 </td><td>APPROX. 4.6 KM</td><td>045° 27' 29.9"</td></tr><tr><td>DB2856</td><td>BLACK BLUFF RM </td><td> 9.070 METERS</td><td>139° 45' </td></tr><tr><td>HT2784</td><td>MONTARA MOUNTAIN PEAK </td><td>APPROX.17.7 KM</td><td>172° 21' 07.6"</td></tr><tr><td>HT3455</td><td>UPPER COAST GUARD FLAGSTAFF </td><td> 89.873 METERS</td><td>324° 11' </td></tr><tr><td>HT3450</td><td>LOWER COAST GUARD FLAGSTAFF </td><td>APPROX. 1.0 KM</td><td>347° 46' 13.9"</td></tr><tr><td>HT3408</td><td>CLIFF HOUSE TURRET HI FINIAL </td><td>APPROX. 6.6 KM</td><td>352° 31' 22.2"</td></tr><tr><td>HT3405</td><td>SAN FRANCISCO CG TOWER FS </td><td>APPROX. 6.6 KM</td><td>354° 01' 48.5"</td></tr><tr><td>HT3413</td><td>SAN FRANCISCO N DUTCH WINDMILL </td><td>APPROX. 5.7 KM</td><td>355° 27' 44.6"</td></tr><tr><td>HT3416</td><td>SAN FRANCISCO S DUTCH WINDMILL </td><td>APPROX. 5.1 KM</td><td>355° 38' 37.8"</td></tr><tr><td>HT3407</td><td>BEACH SOUTH WIRELESS </td><td>APPROX. 3.6 KM</td><td>356° 17' 18.4"</td></tr><tr><td>HT3456</td><td>SAN FRANCISCO PAVILION FS </td><td>APPROX. 1.9 KM</td><td>356° 28' 40.9"</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> <b> NAD 83(1986)</b> 37 43 08.82814(N) 122 30 15.35316(W) AD(1984.00) 3 <br> <b> NAD 27 </b> 37 43 09.05900(N) 122 30 11.45500(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: 10SEG4369074767(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>1852 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1907 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr><tr><td>1917 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr><tr><td>1921 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY COAST AND GEODETIC SURVEY 1907 FOUR AND ONE-HALF MILES S OF POINT LOBOS, ON A HILL 202 FEET ABOVE TIDE, BETWEEN THE OCEAN AND LAGUNA MERCED AND OVERLOOKING BOTH, 140 METERS FROM THE COAST LINE AND 400 METERS FROM THE LAKE SHORE. THE STATION IS MARKED BY A BOTTLE BURIED 3 FEET DEEP AND SURMOUNTED BY A MARBLE POST 2-1/2 FEET LONG, 5-3/4 INCHES SQUARE ON TOP, MARKED U.S.C.S. SIX FEET TO THE SE A GLASS BOTTLE WAS BURIED AND THERE WERE ALSO TWO STUBS SET WITH COPPER NAILS IN THE TOP, 6 FEET FROM THE CENTER. <p> <h2>STATION RECOVERY (1917) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1917 (EWE) A STANDARD DISK STATION MARK WAS SET IN THE STONE WHICH MARKS THE STATION. A STANDARD REFERENCE MARK, SET IN CONCRETE AS DESCRIBED IN NOTE 11A, WAS SET ON HIGHER GROUND TO THE SOUTHWARD. <p>THE DESCRIPTION GIVEN IS GOOD. THE FOLLOWING WILL SERVE AS A HELP IN LOCATING THE STATION. COAST GUARD LOOKOUT NO. 325 IS 100 METERS N OF THE STATION AND THE PUMPING STATION ON SLOAT BOULEVARD IS ON RANGE WITH SOUTH TWIN PEAK. <p> <h2>STATION RECOVERY (1921) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1921 (FGE) THE STATEMENT GIVEN IN EICKELBERGS RECOVERY NOTE OF 1917 IS ADEQUATE, EXCEPT THAT IT WOULD BE WELL TO NOTE THAT COAST GUARD LOOKOUT NO. 325 IS ABOUT 1/2 MILE SOUTH OF COAST GUARD STATION NO. 325. <p>A STANDARD REFERENCE MARK SET IN A CONCRETE POST 10 BY 14 INCHES BY 3 FEET WAS SET IN A KNOB ON LOWER GROUND TO THE NORTH-EASTWARD. THE POST WAS IMBEDDED IN A BED OF CONCRETE 1-1/2 FEET BELOW THE SURFACE. <p>THE NORTHERNMOST END OF LAKE MERCED, WHICH CAN BE SEEN FROM THE HILL, REFERENCE MARK NO. 2 AND STATION ARE IN RANGE. HT3458BLACK BLUFF 3 1929http://www.geocaching.com/mark/details.asp?PID=HT3458BLACK BLUFF 3 1929GeocacheGeocacheBLACK BLUFF 3 1929CGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>BLACK BLUFF 3 1929</h1> <b> PID </b> HT3458 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1992)</b> 37 43 08.64455(N) 122 30 15.16185(W) ADJUSTED <br> <b> NAVD 88 </b> 47. (meters) 154. (feet) SCALED <br> <hr> <b> EPOCH DATE </b> 1991.35 <br> <b> LAPLACE CORR</b> 6.72 (seconds) DEFLEC99 <br> <b> GEOID HEIGHT</b> -32.77 (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> 637,185.098 1</td><td>823,321.737</td><td> MT </td><td>0.99992933</td><td> -1 ' 13 37.4"</td></tr><tr><td>SPC CA 3 </td><td>2,090,498.11 5</td><td>982,014.73 </td><td> sFT </td><td>0.99992933</td><td> -1 ' 13 37.4"</td></tr><tr><td>UTM 10 </td><td>4,174,761.428 </td><td>543,694.563</td><td> MT </td><td>0.99962352</td><td> +0 ' 18 12.0"</td></tr> </table> <p> <b> </b> Elev Factor x Scale Factor = Combined Factor <br> <b>SPC CA 3 </b> 0.99999779 x 0.99992933 = 0.99992712 <br> <b>UTM 10 </b> 0.99999779 x 0.99962352 = 0.99962131 <br> <p> <h2>Superseded Survey Control</h2>
<p> <b> NAD 83(1986)</b> 37 43 08.64559(N) 122 30 15.15282(W) AD(1984.00) 3 <br> <b> NAD 27 </b> 37 43 08.87900(N) 122 30 11.25300(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: 10SEG4369574761(NAD 83) <br>MARKER: Z = SEE DESCRIPTION <br>SETTING: 0 = UNSPECIFIED SETTING <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>1929 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1952 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr><tr><td>1985 </td><td>MARK NOT FOUND </td><td>USPSQD</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY COAST AND GEODETIC SURVEY 1929 (OWS) THE STATION IS ESTABLISHED ON THE TOP OF THE HIGHEST KNOLL ABOUT 300 FEET W OF THE END OF THE MACADAM ROAD RUNNING PARALLEL WITH THE OCEAN AND W OF LAKE MERCED. AN ARMY DIRIGIBLE HANGER IS SITUATED ABOUT 1000 FEET AWAY IN A NORTHEASTERLY DIRECTION. THE CENTER OF THE EMERGENCY HOSPITAL ON THE SEAWARD SIDE OF FLEISHACKER POOL IS IN RANGE WITH THE CLIFF HOUSE. <p>THE STATION IS MARKED BY A STANDARD DISK SET IN A CONCRETE POST, OCTAGON SHAPE, 10 INCHES ACROSS THE TOP AND 2-1/2 FEET LONG, SUNK IN THE GROUND WITHIN 4 INCHES OF THE TOP. <p>REFERENCE MARK NO. 1 IS A 5-INCH SQUARE CONCRETE POST, 2 FEET LONG, SUNK IN THE GROUND WITHIN 6 INCHES OF THE TOP WITH A STANDARD REFERENCE DISK SET IN THE TOP AND THE ARROW POINTING TO THE STATION. THE MARK IS 5.82 METERS SE OF THE STATION AND ON RANGE WITH A CIRCULAR PATCH OF WOODS JUST BELOW SAN BRUNO MT. <p>REFERENCE MARK NO. 2 IS A 10- BY 12-INCH CONCRETE POST 2-1/2 FEET LONG, SUNK IN THE GROUND WITHIN 8 INCHES OF THE TOP WITH A STANDARD REFERENCE DISK SET IN THE TOP AND THE ARROW POINTS TO THE STATION. THE MARK IS 43.69 METERS N OF THE STATION AND ON RANGE WITH THE SOUTHERNMOST GUN MOUNTED ON A KNOLL ON THE SHORE SIDE OF THE MACADAM ROAD. <p> <h2>STATION RECOVERY (1952) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1952 (WHB) STATION IS DESTROYED. THE TOP OF THE HILL WAS CUT AWAY IN 1938 OR 1939 AND A MAN-MADE HILL ERECTED FOR AN ARMY INSTALLATION. <p> <h2>STATION RECOVERY (1985) </h2> <p>RECOVERY NOTE BY US POWER SQUADRON 1985 (MJS) MARK NOT FOUND. HT2794BLACK RIDGE 2http://www.geocaching.com/mark/details.asp?PID=HT2794BLACK RIDGE 2GeocacheGeocacheBLACK RIDGE 2CGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>BLACK RIDGE 2</h1> <b> PID </b> HT2794 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO SOUTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1992)</b> 37 44 52.88427(N) 122 28 02.17634(W) ADJUSTED <br> <b> NAVD 88 </b> 230. (meters) 755. (feet) SCALED <br> <hr> <b> EPOCH DATE </b> 1991.35 <br> <b> LAPLACE CORR</b> 5.15 (seconds) DEFLEC99 <br> <b> GEOID HEIGHT</b> -32.59 (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> 640,328.874 1</td><td>826,645.228</td><td> MT </td><td>0.99992918</td><td> -1 ' 12 15.9"</td></tr><tr><td>SPC CA 3 </td><td>2,100,812.31 5</td><td>992,918.55 </td><td> sFT </td><td>0.99992918</td><td> -1 ' 12 15.9"</td></tr><tr><td>UTM 10 </td><td>4,177,991.865 </td><td>546,931.919</td><td> MT </td><td>0.99962713</td><td> +0 ' 19 34.1"</td></tr> </table> <p> <b> </b> Elev Factor x Scale Factor = Combined Factor <br> <b>SPC CA 3 </b> 0.99996905 x 0.99992918 = 0.99989823 <br> <b>UTM 10 </b> 0.99996905 x 0.99962713 = 0.99959619 <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> SAN BRUNO MOUNTAIN RESET </td><td>158° 36' 50.5"</td></tr><tr><td>UTM 10 </td><td> SAN BRUNO MOUNTAIN RESET </td><td>157° 05' 00.5"</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>DB2864</td><td>BLACK RIDGE 2 RM 2 </td><td> 9.580 METERS</td><td>094° 09' </td></tr><tr><td>HT2825</td><td>SAN BRUNO MOUNTAIN RESET </td><td>APPROX. 7.3 KM</td><td>157° 24' 34.6"</td></tr><tr><td>HT3455</td><td>UPPER COAST GUARD FLAGSTAFF </td><td>APPROX. 4.6 KM</td><td>226° 35' 48.1"</td></tr><tr><td>HT3450</td><td>LOWER COAST GUARD FLAGSTAFF </td><td>APPROX. 4.1 KM</td><td>237° 56' 30.1"</td></tr><tr><td>DB2863</td><td>BLACK RIDGE 2 RM 1 </td><td> 5.920 METERS</td><td>239° 45' </td></tr><tr><td>HT3451</td><td>FLEISHACKER POOL STACK </td><td>APPROX. 3.6 KM</td><td>246° 39' 35.0"</td></tr><tr><td>HT3456</td><td>SAN FRANCISCO PAVILION FS </td><td>APPROX. 3.6 KM</td><td>248° 18' 41.7"</td></tr><tr><td>HT3457</td><td>TAITS TANK MAST </td><td>APPROX. 3.5 KM</td><td>253° 43' 08.2"</td></tr><tr><td>HT3449</td><td>THREE STORY HOUSE TANK </td><td>APPROX. 3.5 KM</td><td>256° 57' 13.0"</td></tr><tr><td>HT3416</td><td>SAN FRANCISCO S DUTCH WINDMILL </td><td>APPROX. 4.1 KM</td><td>297° 18' 51.4"</td></tr><tr><td>HT3413</td><td>SAN FRANCISCO N DUTCH WINDMILL </td><td>APPROX. 4.5 KM</td><td>303° 50' 38.8"</td></tr><tr><td>HT3405</td><td>SAN FRANCISCO CG TOWER FS </td><td>APPROX. 5.1 KM</td><td>310° 02' 55.0"</td></tr><tr><td>DB2862</td><td>BLACK RIDGE 2 RM </td><td> 16.020 METERS</td><td>355° 25' </td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> <b> NAD 83(1986)</b> 37 44 52.88544(N) 122 28 02.16487(W) AD(1984.00) 3 <br> <b> NAD 27 </b> 37 44 53.12500(N) 122 27 58.26800(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: 10SEG4693277992(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>1907 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1907 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr><tr><td>1916 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr><tr><td>1929 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr><tr><td>1931 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr><tr><td>1944 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr><tr><td>1952 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr><tr><td>1958 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY COAST AND GEODETIC SURVEY 1907 ON THE SUMMIT OF THE HIGHEST KNOLL OF THE BLACK RIDGE RANGE. THE STATION WAS MARKED BY A STONE ABOUT 12 INCHES IN DIAMETER AND 5 INCHES DEEP, WITH A 3/4-INCH DRILL HOLE MARKING THE CENTER. A MARBLE POST, 5-1/4 INCHES SQUARE AND 2-1/2 FEET LONG, MARKED WITH A DRILL HOLE AND THE LETTERS U.S.C.S., WAS SET OVER IT. <p> <h2>STATION RECOVERY (1916) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1916 (EWE) THE STATION WAS RECOVERED AS DESCRIBED. A STANDARD STATION DISK MARK WAS SET IN THE TOP OF THE STONE. A REFERENCE MARK SET IN CONCRETE, AS DESCRIBED IN NOTE 11A, WAS ALSO ESTABLISHED. <p> <h2>STATION RECOVERY (1929) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1929 (OWS) STATION WAS RECOVERED AS DESCRIBED EXCEPT THAT THE MARBLE POST SET OVER THE STATION MARK HAS BEEN DESTROYED. A LARGE WATER TANK HAS BEEN ERECTED ABOUT 20 METERS FROM THE STATION. <p>THE FOLLOWING REFERENCE MARKS WERE SET--REFERENCE MARK NO. 1 A 5-INCH SQUARE CONCRETE POST 2 FEET LONG SUNK FLUSH WITH THE SURFACE ON RANGE A LITTLE TO THE RIGHT OF THE LOWEST OF TWO WOODED HILLS LOOKING TOWARD TWIN PEAKS AND 5.92 METERS DISTANT. <p>REFERENCE MARK NO. 2 IS A 5-INCH SQUARE CONCRETE POST 2 FEET LONG, SUNK FLUSH WITH THE SURFACE AND ON RANGE WITH THE SW CHIMNEY OF THE HOUSE AT THE END OF MENDOSA AVENUE, WHICH STREET IS THE NEAREST APPROACH TO THE STATION. REFERENCE MARK IS 9.58 METERS DISTANT. <p>REFERENCE MARK NO. 3 IS A 5-INCH SQUARE CONCRETE POST 2 FEET LONG SUNK FLUSH WITH THE SURFACE 16.04 METERS FROM THE STATION NEAR THE N FACE OF THE WATER TANK. <p>A WATER COMPANYS BENCH MARK IS LOCATED AT THE CORNER OF THE FENCE AROUND THE TANK, NEAR THE GATE, AND 18.40 METERS DISTANT. <p>REFERENCE MARKS NOS. 1, 2, AND 3 HAVE A STANDARD REFERENCE DISK SET IN THE TOP. <p> <h2>STATION RECOVERY (1931) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1931 (CDM) STATION RECOVERED AS DESCRIBED IN RECOVERY NOTE OF O.W.S. 1925. ONE REFERENCE MARK WAS RECOVERED. THE OTHER REFERENCE MARK SHOULD NOT BE CONSIDERED LOST AS THE LATEST DESCRIPTION WAS NOT RECEIVED UNTIL AFTER THE STATION HAD BEEN RECOVERED. <p> <h2>STATION RECOVERY (1944) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1944 (EHP) STATION IS LOST. THE WATER COMPANYS BENCH MARK AT THE CORNER OF THE FENCE AROUND THE TANK WAS THE ONLY REFERENCE MARK RECOVERED. <p> <h2>STATION RECOVERY (1952) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1952 (WHB) STATION IS DESTROYED. A SEARCH WAS MADE BUT NONE OF THE MARKS WERE RECOVERED. THERE ARE NOW TWO LARGE WATER TANKS ON THE SUMMIT OF THE HILL. THE MARK WAS DESTROYED IN EXCAVATING FOR THE SECOND WATER TANK. <p> <h2>STATION RECOVERY (1958) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1958 (JCM) THIS STATION SHOULD BE CONSIDERED LOST. THE DISK FOR THE STATION HAS BEEN SENT TO THE DIRECTOR. HT2793BLACK RIDGE 3http://www.geocaching.com/mark/details.asp?PID=HT2793BLACK RIDGE 3GeocacheGeocacheBLACK RIDGE 3CGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>BLACK RIDGE 3</h1> <b> PID </b> HT2793 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO SOUTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1992)</b> 37 44 52.84408(N) 122 28 02.51427(W) ADJUSTED <br> <b> NAVD 88 </b> 230. (meters) 755. (feet) SCALED <br> <hr> <b> EPOCH DATE </b> 1991.35 <br> <b> LAPLACE CORR</b> 5.16 (seconds) DEFLEC99 <br> <b> GEOID HEIGHT</b> -32.59 (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> 640,327.809 1</td><td>826,636.932</td><td> MT </td><td>0.99992918</td><td> -1 ' 12 16.1"</td></tr><tr><td>SPC CA 3 </td><td>2,100,808.82 5</td><td>992,891.33 </td><td> sFT </td><td>0.99992918</td><td> -1 ' 12 16.1"</td></tr><tr><td>UTM 10 </td><td>4,177,990.580 </td><td>546,923.656</td><td> MT </td><td>0.99962712</td><td> +0 ' 19 33.9"</td></tr> </table> <p> <b> </b> Elev Factor x Scale Factor = Combined Factor <br> <b>SPC CA 3 </b> 0.99996905 x 0.99992918 = 0.99989823 <br> <b>UTM 10 </b> 0.99996905 x 0.99962712 = 0.99959618 <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> SOUTH TWIN 2 </td><td>078° 17' 32.6"</td></tr><tr><td>UTM 10 </td><td> SOUTH TWIN 2 </td><td>076° 45' 42.6"</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>DB2865</td><td>BLACK RIDGE 3 RM 1 </td><td> 8.400 METERS</td><td>074° 51' </td></tr><tr><td>HT3042</td><td>SOUTH TWIN 2 </td><td>APPROX. 1.8 KM</td><td>077° 05' 16.5"</td></tr><tr><td>DB2866</td><td>BLACK RIDGE 3 RM 2 </td><td> 17.088 METERS</td><td>337° 39' </td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> <b> NAD 83(1986)</b> 37 44 52.84054(N) 122 28 02.50909(W) AD(1984.00) 2 <br> <b> NAD 27 </b> 37 44 53.08800(N) 122 27 58.61100(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: 10SEG4692477991(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>1954 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1955 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr><tr><td>1964 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr><tr><td>1966 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY COAST AND GEODETIC SURVEY 1954 (HCA) THE STATION IS LOCATED ON THE SUMMIT OF THE HIGHEST KNOLL OF THE BLACK RIDGE RANGE IN SAN FRANCISCO. IT IS ABOUT 8 M. W OF A POWER TRANSFORMER (ENCLOSED IN A WIRE FENCE), AND 56 FT. S OF THE SW POST OF THE FENCE THAT IS BUILT AROUND A WATER TANK. <p>THE STATION MARK IS A STANDARD DISK, SET IN A DRILLED HOLE IN ROCK. IT IS STAMPED BLACK RIDGE 3 1954. <p>REFERENCE MARK 1 IS A STANDARD DISK, SET IN A DRILL HOLE IN ROCK. IT IS LOCATED ON THE S SIDE OF THE POWER TRANSFORMER FENCE. <p>REFERENCE MARK 2 IS A PROPERTY MARKER, SET IN A 4-IN SQUARE BLOCK OF CONCRETE. THE MARK IS A ROUND BRONZE DISK WITH A HOLE IN THE CENTER. IT IS ABOUT 6 IN. FROM THE SW CORNER POST OF THE FENCE AROUND THE WATER TANK. <p>TO REACH FROM FLEISHHACKER POOL, GO N ON GREAT HIGHWAY TO TRAVEL STREET, THEN RIGHT (E) TO DEWEY BOULEVARD, THENCE (LEFT) ON DEWEY BOULEVARD TO PACHECO STREET AND TOP OF HILL AT WATER TANK AND STATION SITE. <p> <h2>STATION RECOVERY (1955) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1955 (CAS) STATION RECOVERED AS DESCRIBED IN 1954. <p> <h2>STATION RECOVERY (1964) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1964 (PAS) STATION IS LOST. THE TOP OF THE HILL HAS BEEN LEVELED FOR HOUSING DEVELOPMENT. STATION AND REFERENCE MARKS WERE NOT RECOVERED. <p> <h2>STATION RECOVERY (1966) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1966 (EHS) THE AREA WHERE THE STATION MARK AND REFERENCE MARKS WERE LOCATED HAS BEEN GRADED DOWN ABOUT 15 FEET. STATION LOST. <p>AIRLINE DISTANCE AND DIRECTION FROM NEAREST TOWN--AT SAN FRANCISCO. HT2724BLDG 253http://www.geocaching.com/mark/details.asp?PID=HT2724BLDG 253GeocacheGeocacheBLDG 253CGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>BLDG 253</h1> <b> PID </b> HT2724 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> HUNTERS POINT (1993) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1992)</b> 37 43 35.88760(N) 122 21 32.39155(W) ADJUSTED <br> <b> NAVD 88 </b> 39. (meters) 128. (feet) VERTCON <br> <hr> <b> EPOCH DATE </b> 1991.35 <br> <b> LAPLACE CORR</b> 0.24 (seconds) DEFLEC99 <br> <b> GEOID HEIGHT</b> -32.51 (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 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> 637,760.583 1</td><td>836,137.789</td><td> MT </td><td>0.99992927</td><td> -1 ' 08 17.3"</td></tr><tr><td>SPC CA 3 </td><td>2,092,386.18 6</td><td>024,062.06 </td><td> sFT </td><td>0.99992927</td><td> -1 ' 08 17.3"</td></tr><tr><td>UTM 10 </td><td>4,175,678.709 </td><td>556,486.858</td><td> MT </td><td>0.99963930</td><td> +0 ' 23 32.1"</td></tr> </table> <p> <b> </b> Elev Factor x Scale Factor = Combined Factor <br> <b>SPC CA 3 </b> 0.99999903 x 0.99992927 = 0.99992830 <br> <b>UTM 10 </b> 0.99999903 x 0.99963930 = 0.99963833 <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> KYA RADIO TOWER </td><td>250° 56' 47.1"</td></tr><tr><td>UTM 10 </td><td> KYA RADIO TOWER </td><td>249° 24' 57.7"</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>HT2898</td><td>ALAMEDA NAS INNER BASIN W LT </td><td>APPROX. 7.1 KM</td><td>039° 32' 43.2"</td></tr><tr><td>HT2871</td><td>ALAMEDA NAS INNER BASIN E LT </td><td>APPROX. 7.3 KM</td><td>040° 57' 19.7"</td></tr><tr><td>HT2723</td><td>HUNTERS POINT SOUTH END LIGHT </td><td>APPROX. 0.8 KM</td><td>185° 33' 24.2"</td></tr><tr><td>HT2797</td><td>KYA RADIO TOWER </td><td>APPROX. 3.4 KM</td><td>249° 48' 29.8"</td></tr><tr><td>DB2868</td><td>BLDG 253 RM 2 </td><td> 2.586 METERS</td><td>251° 39' </td></tr><tr><td>HT2807</td><td>KSFO RADIO TOWER </td><td>APPROX. 2.7 KM</td><td>318° 40' 59.8"</td></tr><tr><td>HT2722</td><td>HUNTERS POINT NORTH END LIGHT </td><td>APPROX. 1.0 KM</td><td>324° 45' 21.0"</td></tr><tr><td>HT3045</td><td>WESTERN PACIFIC FERRY SLIP LT </td><td>APPROX. 3.6 KM</td><td>328° 20' 03.8"</td></tr><tr><td>HT3085</td><td>SAN FRANCISCO SHELL OIL BLD FS </td><td>APPROX. 8.1 KM</td><td>333° 25' 29.3"</td></tr><tr><td>DB2867</td><td>BLDG 253 RM 1 </td><td> 7.570 METERS</td><td>343° 29' </td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> <b> NAD 83(1986)</b> 37 43 35.88145(N) 122 21 32.38969(W) AD(1984.00) 2 <br> <b> NAD 27 </b> 37 43 36.12500(N) 122 21 28.48800(W) AD( ) 2 <br> NGVD 29 (03/23/93) 38. (m) 125. (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: 10SEG5648775679(NAD 83) <br>MARKER: DO = NOT SPECIFIED OR SEE DESCRIPTION <br>SETTING: 32 = SET IN A RETAINING WALL OR CONCRETE LEDGE <br>MAGNETIC: R = STEEL ROD IMBEDDED IN 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>1948 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1953 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr><tr><td>1958 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr><tr><td>1964 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr><tr><td>1977 </td><td>GOOD </td><td>USCG</td></tr><tr><td>1979 </td><td>GOOD </td><td>NOS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY COAST AND GEODETIC SURVEY 1948 (WMG) STATION IS AT SAN FRANCISCO NAVAL SHIPYARD, HUNTERS POINT. IT IS ON TOP OF BUILDING 253. IT IS THE FLAT ROOF OF THE ELEVATOR SHAFT AT THE SW CORNER OF THE BUILDING, THE OPTICAL, RADIO, AND ORDNANCE SHOP. <p>STATION MARK IS A BRONZE DISK CEMENTED IN A DRILL HOLE IN THE REINFORCED CONCRETE ROOF. <p>REFERENCE MARKS ARE BRONZE DISKS CEMENTED IN DRILL HOLES IN THE COPING. <p> <h2>STATION RECOVERY (1953) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1953 (FAR) STATION RECOVERED IN GOOD CONDITION AS DESCRIBED. <p> <h2>STATION RECOVERY (1958) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1958 (JCM) THE STATION MARK AND REFERENCE MARKS WERE RECOVERED IN GOOD CONDITION AND THE 1948 DESCRIPTION IS ADEQUATE WITH THE FOLLOWING CORRECTION AND ADDITIONS-- <p>1. THE STATION IS LOCATED ON THE ROOF OF THE ELEVATOR SHAFT AT THE E CORNER OF BUILDING 253 (NOT AT THE SW CORNER OF THE BUILDING). <p>2. THE STATION MARK IS STAMPED BLDG 253 1948. <p>3. REFERENCE MARK 1 IS STAMPED BLDG 253 NO 1 1948 AND REFERENCE MARK 2 IS STAMPED BLDG 253 NO 2 1948. <p> <h2>STATION RECOVERY (1964) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1964 (PAS) RECOVERED AS DESCRIBED. <p> <h2>STATION RECOVERY (1977) </h2> <p>RECOVERY NOTE BY US COAST GUARD 1977 (RLM) BLDG 253 1948 GOOD <p>REFS. GOOD <p> <h2>STATION RECOVERY (1979) </h2> <p>RECOVERY NOTE BY NATIONAL OCEAN SERVICE 1979 (DRT) STATION AND REFERENCE MARKS WERE RECOVERED AS DESCRIBED IN 1948 AND 1953. <p>DESCRIBED BY D.R. TAYLOR HT2721BLDG 521http://www.geocaching.com/mark/details.asp?PID=HT2721BLDG 521GeocacheGeocacheBLDG 521CGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>BLDG 521</h1> <b> PID </b> HT2721 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> HUNTERS POINT (1993) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1992)</b> 37 43 04.66935(N) 122 21 58.75197(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> 0.14 (seconds) DEFLEC99 <br> <b> GEOID HEIGHT</b> -32.52 (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> 636,811.202 1</td><td>835,473.252</td><td> MT </td><td>0.99992935</td><td> -1 ' 08 33.4"</td></tr><tr><td>SPC CA 3 </td><td>2,089,271.42 6</td><td>021,881.83 </td><td> sFT </td><td>0.99992935</td><td> -1 ' 08 33.4"</td></tr><tr><td>UTM 10 </td><td>4,174,712.200 </td><td>555,848.097</td><td> MT </td><td>0.99963842</td><td> +0 ' 23 15.6"</td></tr> </table> <p> <b> </b> Elev Factor x Scale Factor = Combined Factor <br> <b>SPC CA 3 </b> 1.00000450 x 0.99992935 = 0.99993385 <br> <b>UTM 10 </b> 1.00000450 x 0.99963842 = 0.99964292 <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> COLEMAN </td><td>351° 38' 44.4"</td></tr><tr><td>UTM 10 </td><td> COLEMAN </td><td>350° 06' 55.4"</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>DB2869</td><td>BLDG 521 RM 1 </td><td> 1.000 METERS</td><td>126° 47' </td></tr><tr><td>HT2731</td><td>SAN FRANCISCO BAY RADAR TOWER </td><td>APPROX. 8.3 KM</td><td>137° 31' 43.0"</td></tr><tr><td>DB2870</td><td>BLDG 521 RM 2 </td><td> 0.985 METERS</td><td>216° 24' </td></tr><tr><td>HT2720</td><td>COLEMAN </td><td>APPROX. 1.1 KM</td><td>350° 30' 11.0"</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> <b> NAD 83(1986)</b> 37 43 04.66306(N) 122 21 58.75028(W) AD(1984.00) 3 <br> <b> NAD 27 </b> 37 43 04.90500(N) 122 21 54.84800(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: 10SEG5584874712(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>1948 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1953 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr><tr><td>1958 </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 1948 (WMG) STATION IS AT THE SAN FRANCISCO NAVAL SHIPYARD, HUNTERS POINT. IT IS ON THE FLAT ROOF OF BUILDING 521, THE POWER PLANT SOUTH AREA, AT THE S CORNER OF THE BUILDING. <p>STATION MARK IS A BRONZE DISK CEMENTED IN A DRILL HOLE IN THE REINFORCED CONCRETE ROOF. <p>REFERENCE MARKS ARE BRONZE DISKS CEMENTED IN DRILL HOLES IN THE COPING. <p> <h2>STATION RECOVERY (1953) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1953 (FAR) STATION RECOVERED IN GOOD CONDITION AS DESCRIBED. <p> <h2>STATION RECOVERY (1958) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1958 (JCM) THE STATION MARK AND REFERENCE MARKS WERE RECOVERED IN GOOD CONDITION AS DESCRIBED IN 1948 AND THE DESCRIPTION IS ADEQUATE WITH THE FOLLOWING ADDITIONS-- <p>1. THE STATION MARK IS STAMPED BLDG 521 1948. <p>2. REFERENCE MARK 1 IS STAMPED BLDG 521 NO 1 1948 AND REFERENCE MARK 2 IS STAMPED BLDG 521 NO 2 1948. <p> <h2>STATION RECOVERY (1964) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1964 (PAS) RECOVERED IN GOOD CONDITION. HT0612BM AZhttp://www.geocaching.com/mark/details.asp?PID=HT0612BM AZGeocacheGeocacheBM AZCGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>BM AZ</h1> <b> PID </b> HT0612 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> HUNTERS POINT (1993) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 43 43. (N) 122 21 42. (W) SCALED <br> <b> NAVD 88 </b> 3.41 (+/-2cm) 11.2 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -32.51 (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> 637,980. </td><td> 1,835,910. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/92) 2.582 (m) 8.47 (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: 10SEG562758(NAD 83) <br>MARKER: DZ = AZIMUTH MARK 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>UNK </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1956 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1956 AT HUNTERS POINT. AT HUNTERS POINT, AT THE SAN FRANCISCO NAVAL SHIPYARD, AT THE WEST END OF DRY DOCK 3, 96.0 FEET SOUTHWEST OF THE CENTER OF THE WEST END OF THE DRY DOCK, 65.9 FEET WEST OF BENCH MARK HUNTER WEST 1 (1941), 23.0 FEET WEST OF THE WEST RAIL OF A LARGE FIFTY TON CRANE TRACK, 18.2 FEET SOUTH OF THE PROLONGATION OF THE SOUTH SIDE OF THE DRY DOCK, 15 FEET EAST OF THE CENTER LINE OF KING AVENUE, ABOUT 0.4 FOOT LOWER THAN THE STREET, AND SET IN THE TOP OF A CONCRETE POST, 0.4 FOOT UNDERGROUND. NOTE-- ACCESS TO MARK IS HAD THROUGH A SQUARE METAL LID. HT3404BONITA CHANNEL RANGE REAR LThttp://www.geocaching.com/mark/details.asp?PID=HT3404BONITA CHANNEL RANGE REAR LTGeocacheGeocacheBONITA CHANNEL RANGE REAR LTCGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>BONITA CHANNEL RANGE REAR LT</h1> <b> PID </b> HT3404 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> POINT BONITA (1993) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1992)</b> 37 47 11.63971(N) 122 30 11.10894(W) ADJUSTED <br> <b> NAVD 88 </b> <br> <hr> <b> EPOCH DATE </b> 1991.35 <br> <b> LAPLACE CORR</b> 4.95 (seconds) DEFLEC99 <br> <b> GEOID HEIGHT</b> -32.62 (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> <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> 644,672.525 1</td><td>823,581.296</td><td> MT </td><td>0.99992937</td><td> -1 ' 13 34.9"</td></tr><tr><td>SPC CA 3 </td><td>2,115,063.11 5</td><td>982,866.30 </td><td> sFT </td><td>0.99992937</td><td> -1 ' 13 34.9"</td></tr><tr><td>UTM 10 </td><td>4,182,250.826 </td><td>543,754.016</td><td> MT </td><td>0.99962358</td><td> +0 ' 18 16.1"</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> <b> NAD 83(1986)</b> 37 47 11.63715(N) 122 30 11.10331(W) AD(1984.00) 4 <br> <b> NAD 27 </b> 37 47 11.88415(N) 122 30 07.19363(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: 10SEG4375482251(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>1964 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1965 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr><tr><td>1976 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1977 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1985 </td><td>GOOD </td><td>USPSQD</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY COAST AND GEODETIC SURVEY 1964 (PAS) LOCATED IN THE NORTHWEST SECTION OF THE CITY OF SAN FRANCISCO, IN LINCOLN PARK AND ON THE NORTHWEST SLOPE OF THE HIGH COASTAL BLUFF. <p>THE STATION IS THE LIGHT ATOP THE CENTER OF THE SQUARE, FLAT ROOF OF A SMALL WHITE HOUSE. THE LIGHT IS ABOUT 326 FEET ABOVE SEA LEVEL. DESIGNATED AS NO. 283 IN THE PUBLICATION LIST OF LIGHTS AND OTHER MARINE AIDS, VOUME III, PACIFIC COAST AND PACIFIC ISLANDS (1963). <p> <h2>STATION RECOVERY (1965) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1965 (PAS) RECOVERED AS DESCRIBED. <p> <h2>STATION RECOVERY (1976) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1976 (CA) RECOVERED AS DESCRIBED. <p> <h2>STATION RECOVERY (1977) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1977 (RBM) RECOVERED. ALTHOUGH THE LIGHT LIST INDICATES IT WAS REBUILT OR REPAIRED IN 1969, PRELIMINARY FIELD OBSERVATIONS INDICATES THE POSITION WAS RETAINED. <p>AIRLINE DISTANCE AND DIRECTION FROM NEAREST TOWN AT SAN FRANCISCO. <p> <h2>STATION RECOVERY (1985) </h2> <p>RECOVERY NOTE BY US POWER SQUADRON 1985 (RWY) RECOVERED IN GOOD CONDITION. HT0715BOUNDARYhttp://www.geocaching.com/mark/details.asp?PID=HT0715BOUNDARYGeocacheGeocacheBOUNDARYDODUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>BOUNDARY</h1> <b> PID </b> HT0715 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 48 12. (N) 122 25 54. (W) SCALED <br> <b> NAVD 88 </b> 13.57 (+/-2cm) 44.5 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -32.48 (meters) GEOID03 <br> <p> <b> VERT ORDER </b> FIRST CLASS I (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> 646,400. </td><td> 1,829,910. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/??) 12.743 (m) 41.81 (f) ADJUSTED 1 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: 10SEG500841(NAD 83) <br>MARKER: Z = SEE DESCRIPTION <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>UNK </td><td>MONUMENTED </td><td>DOD</td></tr><tr><td>1952 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1969 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1985 </td><td>MARK NOT FOUND </td><td>USPSQD</td></tr><tr><td>19881011</td><td>MARK NOT FOUND </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1952 AT SAN FRANCISCO. AT SAN FRANCISCO, AT FORT MASON, AT THE NORTHEAST CORNER OF THE INTERSECTION OF BAY AND LAGUNA STREETS, LEADED IN THE BOTTOM OF A 2-INCH HOLE IN THE TOP OF A 2- X 2-FOOT CONCRETE POST PROJECTING 3.5 FEET ABOVE THE SIDE WALK MARKING THE SOUTHWEST CORNER OF THE FORT MASON MILITARY RESERVATION, 15.0 FEET EAST OF THE EAST CURB OF LAGUNA STREET, AND 3.0 FEET NORTH OF THE NORTH CURB OF BAY STREET. <p> <h2>STATION RECOVERY (1969) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1969 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1985) </h2> <p>RECOVERY NOTE BY US POWER SQUADRON 1985 (GRB) MARK NOT FOUND. <p> <h2>STATION RECOVERY (1988) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 MARK NOT FOUND. HT3017BULL DURHAM RED TANKhttp://www.geocaching.com/mark/details.asp?PID=HT3017BULL DURHAM RED TANKGeocacheGeocacheBULL DURHAM RED TANKCGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>BULL DURHAM RED TANK</h1> <b> PID </b> HT3017 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1992)</b> 37 46 55.33141(N) 122 23 34.26032(W) ADJUSTED <br> <b> NAVD 88 </b> <br> <hr> <b> EPOCH DATE </b> 1991.35 <br> <b> LAPLACE CORR</b> 1.15 (seconds) DEFLEC99 <br> <b> GEOID HEIGHT</b> -32.47 (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> <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> 643,967.769 1</td><td>833,278.607</td><td> MT </td><td>0.99992932</td><td> -1 ' 09 31.9"</td></tr><tr><td>SPC CA 3 </td><td>2,112,750.92 6</td><td>014,681.56 </td><td> sFT </td><td>0.99992932</td><td> -1 ' 09 31.9"</td></tr><tr><td>UTM 10 </td><td>4,181,805.519 </td><td>553,463.778</td><td> MT </td><td>0.99963521</td><td> +0 ' 22 19.1"</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> <b> NAD 83(1986)</b> 37 46 55.32494(N) 122 23 34.25981(W) AD(1984.00) 4 <br> <b> NAD 27 </b> 37 46 55.57800(N) 122 23 30.34300(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: 10SEG5346481806(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>1919 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1948 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr><tr><td>1958 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY COAST AND GEODETIC SURVEY 1919 (FM) THIS IS A TANK STANDING ON TRESTLE WORK ON THE ROOF OF THE BUILDING OCCUPIED BY THE AMERICAN TOBACCO COMPANY OF THE PACIFIC COAST ON THE CORNER OF SECOND AND SOUTH PARK STREETS, IN THE CITY OF SAN FRANCISCO. <p>AS THE NAME INDICATES, THE TANK IS PAINTED RED AND HAS THE INSCRIPTION BULL DURHAM PAINTED ON IT. THE TANK HAS A CONICAL ROOF WITH A SPIKE AT THE APEX. <p> <h2>STATION RECOVERY (1948) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1948 (WMG) THIS TANK COULD NOT BE IDENTIFIED WHILE DOING TOPOGRAPHY ALONG THE SAN FRANCISCO WATERFRONT IN ITS VICINITY. STATION HAS PROBABLY BEEN DESTROYED. <p> <h2>STATION RECOVERY (1958) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1958 (JCM) THE TANK HAS BEEN REMOVED BUT THE METAL TRESTLE WORK AND PLATFORM ARE STILL IN PLACE. <p>THIS IS AN INTERSECTION STATION. HT0743C 109http://www.geocaching.com/mark/details.asp?PID=HT0743C 109GeocacheGeocacheC 109CGSCGS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>C 109</h1> <b> PID </b> HT0743 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 47 19. (N) 122 23 46. (W) SCALED <br> <b> NAVD 88 </b> 7.17 (+/-2cm) 23.5 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -32.46 (meters) GEOID03 <br> <p> <b> VERT ORDER </b> FIRST CLASS I (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> 644,700. </td><td> 1,833,010. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/??) 6.341 (m) 20.80 (f) ADJUSTED 1 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: 10SEG531825(NAD 83) <br>MARKER: DB = BENCH MARK DISK <br>SETTING: 38 = SET IN THE ABUTMENT OR PIER OF A LARGE BRIDGE <br>SP_SET: CONCRETE PILLAR <br>STAMPING: C 109 1932 <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 20, 1988 <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1932 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1952 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1969 </td><td>GOOD </td><td>NGS</td></tr><tr><td>19870120</td><td>MARK NOT FOUND </td><td>USPSQD</td></tr><tr><td>19880920</td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1952 AT SAN FRANCISCO. AT SAN FRANCISCO, AT THE NORTH CORNER OF THE INTERSECTION OF FIRST AND HOWARD STREETS, SET VERTICALLY IN THE NORTHEAST FACE OF THE CONCRETE PILLAR FORMING THE SOUTH CORNER OF THE UPJON COMPANY BUILDING, 0.6 FOOT NORTHWEST OF THE EAST CORNER OF THE PILLAR, AND 3.8 FEET ABOVE THE SIDEWALK. <p> <h2>STATION RECOVERY (1969) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1969 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1987) </h2> <p>RECOVERY NOTE BY US POWER SQUADRON 1987 (RAS) MARK NOT FOUND. <p> <h2>STATION RECOVERY (1988) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 RECOVERED IN GOOD CONDITION WITH THE FOLLOWING EXCEPTION. ADD--AT 199 FIRST STREET. HT0690C 551http://www.geocaching.com/mark/details.asp?PID=HT0690C 551GeocacheGeocacheC 551CGSCGS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>C 551</h1> <b> PID </b> HT0690 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 48 34. (N) 122 28 37. (W) SCALED <br> <b> NAVD 88 </b> 27.648 (meters) 90.71 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.54 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 27.630 (meters) 90.65 (feet) COMP <br> <b> MODELED GRAV</b> 979,979.1 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS I <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> 647,160. </td><td> 1,825,940. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/??) 26.815 (m) 87.98 (f) ADJUSTED 1 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: 10SEG460848(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: FLOOR <br>STAMPING: C 551 1956 <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 13, 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>1969 </td><td>GOOD </td><td>NGS</td></tr><tr><td>19880913</td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY COAST AND GEODETIC SURVEY 1956 AT SAN FRANCISCO. AT SAN FRANCISCO, IN R6W, T1S, ABOUT 400 FEET SOUTH OF OLD FORT POINT AND UNDER THE GOLDEN GATE BRIDGE, IN TOP OF THE SOUTHEAST CORNER OF A CONCRETE FLOOR, 285 FEET (PACED) SOUTH OF THE SOUTH EDGE OF THE FIRST TALL PIER NORTH OF THE SOUTH END OF THE BRIDGE, 2.4 FEET NORTHEAST OF THE NORTHEAST EDGE OF A WOODEN FLIGHT OF STEPS LEADING OVER A RETAINING WALL TO A SIGHT SEEING FLOOR, 1.6 FEET SOUTHEAST OF THE SOUTHEAST FACE OF A CONCRETE RETAINING WALL AROUND THE FLOOR, 1.4 FEET WEST OF THE EAST EDGE OF THE FLOOR. <p> <h2>STATION RECOVERY (1969) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1969 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1988) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 RECOVERED IN GOOD CONDITION. HT0626C 571http://www.geocaching.com/mark/details.asp?PID=HT0626C 571GeocacheGeocacheC 571CGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>C 571</h1> <b> PID </b> HT0626 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO SOUTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 42 43. (N) 122 24 04. (W) SCALED <br> <b> NAVD 88 </b> 7.71 (+/-2cm) 25.3 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -32.54 (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> 636,210. </td><td> 1,832,390. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/92) 6.871 (m) 22.54 (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: 10SEG527740(NAD 83) <br>MARKER: DB = BENCH MARK DISK <br>SETTING: 36 = SET IN A MASSIVE STRUCTURE <br>SP_SET: TUNNEL WALL <br>STAMPING: C 571 1939 <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>1939 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1956 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1965 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1956 AT SAN FRANCISCO. AT SAN FRANCISCO, 297 FEET NORTH OF MILEPOST 5, AT THE SOUTH END OF TUNNEL 4, SET VERTICALLY IN THE WEST FACE OF THE EAST WALL OF THE TUNNEL, 6.0 FEET EAST OF THE EAST RAIL OF THE EAST TRACK, 2.6 FEET NORTH OF THE SOUTH PORTAL OF THE TUNNEL, AND 3 FEET HIGHER THAN THE TRACKS. <p> <h2>STATION RECOVERY (1965) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1965 RECOVERED IN GOOD CONDITION. HT0770C 995http://www.geocaching.com/mark/details.asp?PID=HT0770C 995GeocacheGeocacheC 995CGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>C 995</h1> <b> PID </b> HT0770 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 46 33. (N) 122 24 57. (W) SCALED <br> <b> NAVD 88 </b> 14.31 (+/-2cm) 46.9 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -32.49 (meters) GEOID03 <br> <p> <b> VERT ORDER </b> FIRST CLASS I (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> 643,320. </td><td> 1,831,240. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/92) 13.474 (m) 44.21 (f) ADJ UNCH 1 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: 10SEG514811(NAD 83) <br>MARKER: DB = BENCH MARK DISK <br>SETTING: 36 = SET IN A MASSIVE STRUCTURE <br>SP_SET: BUILDING <br>STAMPING: C 995 1965 <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>1965 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1969 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1987 </td><td>MARK NOT FOUND </td><td>USPSQD</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY COAST AND GEODETIC SURVEY 1965 AT SAN FRANCISCO. AT SAN FRANCISCO, ON THE NORTHWEST SIDE OF MISSION STREET BETWEEN 10TH AND 11TH STREETS, AT 1450 MISSION STREET (OCCUPIED BY THE CALIFORNIA STATE EMPLOYMENT SERVICE), SET VERTICALLY IN THE SOUTHWEST FACE OF THE CONCRETE PILLAR ON THE NORTHEAST SIDE OF THE ENTRANCE TO THE BUILDING, 15.2 FEET NORTHWEST OF THE NORTHWEST CURB OF MISSION STREET, 3.0 FEET SOUTHWEST OF THE EAST CORNER OF THE BUILDING, 2.6 FEET NORTHEAST OF THE CENTER OF THE ENTRANCE, AND 3.5 FEET ABOVE THE SIDEWALK. <p> <h2>STATION RECOVERY (1969) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1969 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1987) </h2> <p>RECOVERY NOTE BY US POWER SQUADRON 1987 (RAS) MARK NOT FOUND. HT0776C OF SFhttp://www.geocaching.com/mark/details.asp?PID=HT0776C OF SFGeocacheGeocacheC OF SFCA3290Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>C OF SF</h1> <b> PID </b> HT0776 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 46 28. (N) 122 24 18. (W) SCALED <br> <b> NAVD 88 </b> 6.17 (+/-2cm) 20.2 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -32.48 (meters) GEOID03 <br> <p> <b> VERT ORDER </b> FIRST CLASS I (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> 643,150. </td><td> 1,832,190. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/92) 5.340 (m) 17.52 (f) ADJ UNCH 1 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: 10SEG523809(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>CA3290</td></tr><tr><td>1965 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1969 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1965 AT SAN FRANCISCO. AT SAN FRANCISCO, AT THE NORTH CORNER OF 7TH AND BRYANT STREETS, AT THE NEW SAN FRANCISCO HALL OF JUSTICE BUILDING, IN THE TOP AND CENTER OF A GRANITE THRESHOLD OF A DOORWAY, 60.3 FEET NORTHEAST OF THE NORTHEAST CURB OF 7TH STREET, 36.0 FEET NORTHEAST OF THE NORTHEAST CURB OF BRYANT STREET, AND 5.0 FEET SOUTHEAST OF BENCH MARK B 995. <p> <h2>STATION RECOVERY (1969) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1969 RECOVERED IN GOOD CONDITION. HT2799CANDLESTICK POINT 1894http://www.geocaching.com/mark/details.asp?PID=HT2799CANDLESTICK POINT 1894GeocacheGeocacheCANDLESTICK POINT 1894CGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>CANDLESTICK POINT 1894</h1> <b> PID </b> HT2799 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO SOUTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1992)</b> 37 42 47.01228(N) 122 23 07.24695(W) ADJUSTED <br> <b> NAVD 88 </b> 39. (meters) 128. (feet) SCALED <br> <hr> <b> EPOCH DATE </b> 1991.35 <br> <b> LAPLACE CORR</b> 0.51 (seconds) DEFLEC99 <br> <b> GEOID HEIGHT</b> -32.53 (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> 636,300.588 1</td><td>833,785.228</td><td> MT </td><td>0.99992940</td><td> -1 ' 09 15.4"</td></tr><tr><td>SPC CA 3 </td><td>2,087,596.18 6</td><td>016,343.70 </td><td> sFT </td><td>0.99992940</td><td> -1 ' 09 15.4"</td></tr><tr><td>UTM 10 </td><td>4,174,156.852 </td><td>554,174.801</td><td> MT </td><td>0.99963615</td><td> +0 ' 22 33.6"</td></tr> </table> <p> <b> </b> Elev Factor x Scale Factor = Combined Factor <br> <b>SPC CA 3 </b> 0.99999901 x 0.99992940 = 0.99992841 <br> <b>UTM 10 </b> 0.99999901 x 0.99963615 = 0.99963516 <br> <p> <h2>Superseded Survey Control</h2>
<p> <b> NAD 83(1986)</b> 37 42 47.00629(N) 122 23 07.24510(W) AD(1984.00) 3 <br> <b> NAD 27 </b> 37 42 47.24900(N) 122 23 03.34000(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: 10SEG5417574157(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>1894 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1931 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr><tr><td>1958 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY COAST AND GEODETIC SURVEY 1931 STATION IS ON CANDLESTICK POINT, SE FROM AND UNDER VISITATION KNOB, ABOUT 130 FEET ABOVE HIGH WATER, AND DIRECTLY OVER 8-FOOT SHARP PINNACLE ROCK NEAR HIGH-WATER MARK. <p>ORIGINAL STATION MARKS WERE BOTTLES BURIED 2-1/2 FEET BELOW SURFACE AND WOODEN STUB FLUSH WITH SURFACE. IN 1916, STATION WAS FOUND TO HAVE BEEN RE-MARKED BY BRASS CAP WITH INSCRIPTION U.S.E.D. HARBOR MONUMENT LINE ON 3-INCH GALVANIZED PIPE SET IN CONCRETE PIER. PIER IS FLUSH WITH GROUND AND PIPE PROJECTS 8 INCHES. <p> <h2>STATION RECOVERY (1958) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1958 (JCM) THE STATION MARK WAS GRADED OUT IN 1958 DURING THE CONSTRUCTION OF THE NEW BASEBALL STADIUM FOR THE SAN FRANCISCO GIANTS. STATION LOST. HT0748CHISELED SQUAREhttp://www.geocaching.com/mark/details.asp?PID=HT0748CHISELED SQUAREGeocacheGeocacheCHISELED SQUARECGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>CHISELED SQUARE</h1> <b> PID </b> HT0748 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 46 50. (N) 122 24 55. (W) SCALED <br> <b> NAVD 88 </b> 17.54 (+/-2cm) 57.5 (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>Photographs are available for this station. <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> 643,840. </td><td> 1,831,300. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/92) 16.707 (m) 54.81 (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: 10SEG514816(NAD 83) <br>MARKER: Q = CHISELED SQUARE <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>1952 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1965 </td><td>GOOD </td><td>NGS</td></tr><tr><td>20020516</td><td>GOOD </td><td>INDIV</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1952 AT SAN FRANCISCO. AT SAN FRANCISCO, AT THE SOUTHEAST CORNER OF THE INTERSECTION OF HYDE AND MC ALLISTER STREETS, ON THE TOP OF THE EXTREME NORTHWEST CORNER OF THE FOUNDATION OF THE FEDERAL OFFICE BUILDING, 0.8 FOOT NORTHWEST OF THE NORTHWEST CORNER OF THE BUILDING, AND 3.0 FEET HIGHER THAN THE SIDEWALK. <p> <h2>STATION RECOVERY (1965) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1965 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (2002) </h2> <p>RECOVERY NOTE BY INDIVIDUAL CONTRIBUTORS 2002 (DBT) NOTE - GPS OBSERVATION WITH A GARMIN ETREX VENTURE INDICATED N37 46 50.5 W122 24 54.6 HT2792CITY COLLEGEhttp://www.geocaching.com/mark/details.asp?PID=HT2792CITY COLLEGEGeocacheGeocacheCITY COLLEGECGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>CITY COLLEGE</h1> <b> PID </b> HT2792 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO SOUTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1992)</b> 37 43 30.98291(N) 122 26 59.98173(W) ADJUSTED <br> <b> NAVD 88 </b> 100. (meters) 328. (feet) SCALED <br> <hr> <b> EPOCH DATE </b> 1991.35 <br> <b> LAPLACE CORR</b> 3.72 (seconds) DEFLEC99 <br> <b> GEOID HEIGHT</b> -32.58 (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> 637,772.641 1</td><td>828,114.776</td><td> MT </td><td>0.99992928</td><td> -1 ' 11 37.9"</td></tr><tr><td>SPC CA 3 </td><td>2,092,425.74 5</td><td>997,739.89 </td><td> sFT </td><td>0.99992928</td><td> -1 ' 11 37.9"</td></tr><tr><td>UTM 10 </td><td>4,175,476.551 </td><td>548,468.753</td><td> MT </td><td>0.99962893</td><td> +0 ' 20 11.5"</td></tr> </table> <p> <b> </b> Elev Factor x Scale Factor = Combined Factor <br> <b>SPC CA 3 </b> 0.99998944 x 0.99992928 = 0.99991873 <br> <b>UTM 10 </b> 0.99998944 x 0.99962893 = 0.99961838 <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> BERNAL </td><td>032° 48' 33.2"</td></tr><tr><td>UTM 10 </td><td> BERNAL </td><td>031° 16' 43.8"</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>HT2804</td><td>BERNAL </td><td>APPROX. 2.1 KM</td><td>031° 36' 55.3"</td></tr><tr><td>DB2948</td><td>CITY COLLEGE RM 1 </td><td> 9.242 METERS</td><td>072° 57' </td></tr><tr><td>HT2797</td><td>KYA RADIO TOWER </td><td>APPROX. 4.9 KM</td><td>101° 51' 31.1"</td></tr><tr><td>DB2949</td><td>CITY COLLEGE RM 2 </td><td> 6.748 METERS</td><td>342° 01' </td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> <b> NAD 83(1986)</b> 37 43 30.97580(N) 122 26 59.98224(W) AD(1984.00) 3 <br> <b> NAD 27 </b> 37 43 31.22200(N) 122 26 56.07900(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: 10SEG4846975477(NAD 83) <br>MARKER: DO = NOT SPECIFIED OR SEE DESCRIPTION <br>SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1957 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1958 </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 1957 (RLE) THE STATION IS LOCATED ON THE CITY COLEGE OF SAN FRANCISCO CAMPUS GROUNDS. IT IS 4 FT. S OF A FLOWER BED, 16 FT. S OF THE W EDGE OF A SIDEWALK, AND 51 FT. SE OF THE DOOR TO THE E ENTRANCE OF CLOUD HALL BUILDING. IT IS STAMPED CITY COLLEGE 1957, AND IS SET FLUSH WITH THE SURFACE OF THE GROUND (NOTES 1A AND 7A). <p>REFERENCE MARK 1 IS CEMENTED IN A DRILL HOLE IN THE S EDGE OF THE SIDEWALK LEADING UP TO THE E ENTRANCE OF CLOUD HALL BUILDING. IT IS STAMPED CITY COLLEGE NO 1 1957 AND IS SET FLUSH WITH THE SURFACE OF THE SIDEWALK. <p>REFERENCE MARK 2 IS CEMENTED IN A DRILL HOLE IN THE S RAIL OF THE HEADWALL LEADING UP TO THE E ENTRANCE OF CLOUD HALL BUILDING. IT IS STAMPED CITY COLLEGE NO 2 1957 AND IS SET FLUSH WITH THE TOP SURFACE OF HEADWALL. <p>NO AZIMUTH MARK WAS ESTABLISHED. <p>TO REACH THE STATION FROM THE E ENTRANCE OF CLOUD HALL BUILDING AT THE CITY COLLEGE OF SAN FRANCISCO, GO 51 FT. SE AND THE STATION AS DESCRIBED. <p>HEIGHT OF LIGHT ABOVE STATION MARK - 1.0 METER. <p> <h2>STATION RECOVERY (1958) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1958 (JCM) STATION RECOVERED AS ORIGINALLY DESCRIBED AND IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1964) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1964 (PAS) THE STATION AND REFERENCE MARKS WERE RECOVERED AS DESCRIBED BY R.L.E. IN 1957. HT0698CLARKhttp://www.geocaching.com/mark/details.asp?PID=HT0698CLARKGeocacheGeocacheCLARKCGSCGS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <b> TIDAL BM </b> This is a Tidal Bench Mark. <br> <h1>CLARK</h1> <b> PID </b> HT0698 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1992)</b> 37 48 30.98554(N) 122 28 15.28359(W) ADJUSTED <br> <b> NAVD 88 </b> 4.249 (meters) 13.94 (feet) ADJUSTED <br> <hr> <b> EPOCH DATE </b> 1991.35 <br> <b> LAPLACE CORR</b> 2.65 (seconds) DEFLEC99 <br> <b> GEOID HEIGHT</b> -32.53 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 4.247 (meters) 13.93 (feet) COMP <br> <b> MODELED GRAV</b> 979,980.6 (mgal) NAVD 88 <br> <p> <b> HORZ ORDER </b> SECOND <br> <b> VERT ORDER </b> FIRST CLASS I <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 determined by differential leveling and adjusted by the National Geodetic Survey in June 1991. <p>This Tidal Bench Mark is designated as VM 976 by the Center for Operational Oceanographic Products and Services. <p>The Laplace correction was computed from DEFLEC99 derived deflections. <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> 647,057.980 1</td><td>826,466.036</td><td> MT </td><td>0.99992968</td><td> -1 ' 12 24.0"</td></tr><tr><td>SPC CA 3 </td><td>2,122,889.39 5</td><td>992,330.65 </td><td> sFT </td><td>0.99992968</td><td> -1 ' 12 24.0"</td></tr><tr><td>UTM 10 </td><td>4,184,711.750 </td><td>546,573.137</td><td> MT </td><td>0.99962672</td><td> +0 ' 19 27.7"</td></tr> </table> <p> <b> </b> Elev Factor x Scale Factor = Combined Factor <br> <b>SPC CA 3 </b> 1.00000444 x 0.99992968 = 0.99993412 <br> <b>UTM 10 </b> 1.00000444 x 0.99962672 = 0.99963116 <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 DIABLO NEW LIGHT </td><td>298° 11' 39.8"</td></tr><tr><td>UTM 10 </td><td> POINT DIABLO NEW LIGHT </td><td>296° 39' 48.1"</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>HT3019</td><td>ALCATRAZ LIGHTHOUSE </td><td>APPROX. 4.7 KM</td><td>065° 30' 17.2"</td></tr><tr><td>HT0700</td><td>CLARK RM 2 </td><td> 12.768 METERS</td><td>110° 25' </td></tr><tr><td>HT0699</td><td>CLARK RM 1 </td><td> 4.908 METERS</td><td>172° 24' </td></tr><tr><td>HT3103</td><td>POINT DIABLO LIGHT </td><td>APPROX. 2.8 KM</td><td>296° 59' 25.8"</td></tr><tr><td>HT3115</td><td>POINT DIABLO NEW LIGHT </td><td>APPROX. 2.8 KM</td><td>296° 59' 15.8"</td></tr><tr><td>HT3033</td><td>GOLDEN GATE BRIDGE S AERO LT </td><td>APPROX. 0.8 KM</td><td>315° 04' 16.4"</td></tr><tr><td>HT3029</td><td>GOLDEN GATE BRIDGE N AERO LT </td><td>APPROX. 2.0 KM</td><td>339° 04' 10.5"</td></tr><tr><td>HT3066</td><td>OKE </td><td>APPROX. 2.9 KM</td><td>351° 15' 49.3"</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> <b> NAD 83(1986)</b> 37 48 30.98212(N) 122 28 15.27873(W) AD(1984.00) 2 <br> <b> NAD 27 </b> 37 48 31.23300(N) 122 28 11.36800(W) AD( ) 2 <br> NGVD 29 (10/21/93) 3.423 (m) 11.23 (f) ADJUSTED 1 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: 10SEG4657384712(NAD 83) <br>MARKER: DS = TRIANGULATION STATION DISK <br>SETTING: 32 = SET IN A RETAINING WALL OR CONCRETE LEDGE <br>SP_SET: SEA WALL <br>STAMPING: CLARK 1948 <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 13, 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>1952 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr><tr><td>1952 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr><tr><td>1952 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1955 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr><tr><td>1956 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr><tr><td>1958 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr><tr><td>1964 </td><td>GOOD </td><td>CGS</td></tr><tr><td>1965 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr><tr><td>1969 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1971 </td><td>SEE DESCRIPTION </td><td>NGS</td></tr><tr><td>1977 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1977 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1977 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1978 </td><td>GOOD </td><td>NOS</td></tr><tr><td>1986 </td><td>GOOD </td><td>USPSQD</td></tr><tr><td>19880913</td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY COAST AND GEODETIC SURVEY 1948 (WMG) STATION IS IN THE PRESIDIO, ON THE SHORELINE OF SAN FRANCISCO BAY, AND ABOUT 600 YARDS NW OF THE FORT POINT COAST GUARD STATION. IT IS ABOUT 15 METERS W OF A CONCRETE DOCK AND IS IN THE TOP OF SEA-WALL FORMING THE SHORELINE. <p>STATION MARK IS A BRONZE STATION DISK, STAMPED CLARK 1948, CEMENTED IN A DRILL HOLE IN THE CONCRETE SEA-WALL. <p>REFERENCE MARK 1 IS A BRONZE REFERENCE DISK CEMENTED IN A DRILL HOLE IN SMALL BUILDING FOOTING. <p>REFERENCE MARK 2 IS A BRONZE REFERENCE DISK CEMENTED IN A DRILL HOLE IN THE SEA-WALL. <p> <h2>STATION RECOVERY (1952) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1952 (WHB) THE STATION WAS FOUND AS DESCRIBED. ALL MARKS ARE IN GOOD CONDITION. THE DESCRIPTION IS GOOD. <p> <h2>STATION RECOVERY (1952) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1952 (LFW) THE STATION MARK AND REFERENCE MARKS WERE RECOVERED IN GOOD CONDITION. THE FOLLOWING CAN BE ADDED TO THE NEW DESCRIPTION-- <p>THE STATION IS LOCATED IN SAN FRANCISCO, AT THE PRESIDIO. <p>THE STATION MARK, A STANDARD DISK, STAMPED CLARK 1948, IS IN THE TOP OF THE CONCRETE SEAWALL WHICH RUNS W OF THE ENGINEERS DOCK (TORPEDO DOCK), 79.4 FT. W OF THE W EDGE OF THE WHARF, 22.7 FT. NE OF THE NW CORNER OF CORRUGATED-IRON BUILDING N 985, 10.1 FT. W OF THE NW CORNER OF A STUCCO PAINT LOCKER BUILDING, 1.5 FT. N OF THE S EDGE OF THE SEAWALL, AND 3.3 FT. ABOVE THE GROUND. <p>REFERENCE MARK 1, A STANDARD DISK, STAMPED NO 1 1948, IS IN THE TOP OF THE SW CORNER OF THE CONCRETE FOUNDATION OF THE PAINT LOCKER, 69.3 FT. W OF THE W EDGE OF ENGINEERS DOCK (TORPEDO DOCK), 16.15 FT. S OF THE STATION, 12.9 FT. S OF THE S EDGE OF THE CONCRETE SEAWALL, AND ABOUT 0.2 FT. ABOVE THE GROUND. <p>REFERENCE MARK 2, A STANDARD DISK, STAMPED NO 2 1948, IS IN THE TOP OF THE CONCRETE SEAWALL WHICH RUNS W OF ENGINEERS DOCK (TORPEDO DOCK), 41.88 FT. E OF THE STATION, 37.5 FT. W OF THE W EDGE OF THE WHARF, 26.3 FT. NE OF THE NE CORNER OF CORRUGATED-IRON BUILDING NO. 985, 1.4 FT. N OF THE S EDGE OF THE SEAWALL, AND 3.0 FT. ABOVE THE GROUND. <p> <h2>STATION RECOVERY (1952) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1952 AT SAN FRANCISCO. AT SAN FRANCISCO, AT THE PRESIDIO, IN THE TOP OF THE CONCRETE SEAWALL WHICH RUNS WEST OF THE ENGINEERS DOCK (TORPEDO DOCK), 79.4 FEET WEST OF THE WEST EDGE OF THE WHARF, 22.7 FEET NORTHEAST OF THE NORTHEAST CORNER OF CORRUGATED IRON BUILDING N 985, 10.1 FEET WEST OF THE NORTHWEST CORNER OF A STUCCO PAINT LOCKER BUILDING, 1.5 FEET NORTH OF THE SOUTH EDGE OF THE SEAWALL, AND 3.3 FEET ABOVE THE GROUND. <p> <h2>STATION RECOVERY (1955) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1955 (WMG) STATION FOUND AS DESCRIBED, ALL MARKS IN GOOD CONDITION. <p>THE DESCRIPTION IS GOOD. <p> <h2>STATION RECOVERY (1956) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1956 (EEJ) THE STATION AND REFERENCE MARKS 1 AND 2 WERE RECOVERED IN GOOD CONDITION AND AS DESCRIBED. <p> <h2>STATION RECOVERY (1958) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1958 (JCM) STATION WAS RECOVERED AND FOUND IN GOOD CONDITION. THE DESCRIPTION BY L.F.M., IN 1952, IS ADEQUATE. <p>THE STATION AND REFERENCE MARKS WERE RECOVERED IN GOOD CONDITION AS DESCRIBED BY F.W. IN 1952. <p> <h2>STATION RECOVERY (1964) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1964 (PAS) THE STATION AND REFERENCE MARKS WERE RECOVERED IN GOOD CONDITION AS DESCRIBED BY L.F.W. IN 1952. <p> <h2>STATION RECOVERY (1965) </h2> <p>RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1965 (PAS) THE STATION AND REFERENCE MARKS WERE RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1969) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1969 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1971) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1971 (HH) THE STATION AND REFERENCE MARKS WERE RECOVERED IN GOOD CONDITION AS DESCRIBED. <p>AIRLINE DISTANCE AND DIRECTION FROM NEAREST TOWN--IN SAN FRANCISCO <p> <h2>STATION RECOVERY (1977) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1977 (RBM) THE STATION AND THE REFERENCE MARKS WERE RECOVERED IN GOOD CONDITION AS DESCRIBED. <p>AIRLINE DISTANCE AND DIRECTION FROM NEAREST TOWN AT SAN FRANCISCO. <p> <h2>STATION RECOVERY (1977) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1977 (CLN) THE STATION MARK AND REFERENCE MARKS 1 AND 2 WERE RECOVERED IN GOOD CONDITION AND THE DISTANCES AND DIRECTIONS FROM THE STATION MARK TO THE REFERENCE MARKS MEASURED ON THIS DATE COMPARED FAVORABLY WITH THE 1948 AND 1964 MEASUREMENTS. THE PREVIOUS DESCRIPTIONS ARE ADEQUATE. <p>AIRLINE DISTANCE AND DIRECTION FROM NEAREST TOWN AT SAN FRANCISCO. <p> <h2>STATION RECOVERY (1977) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1977 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1978) </h2> <p>RECOVERY NOTE BY NATIONAL OCEAN SERVICE 1978 (JPR) THE STATION AND REFERENCE MARKS WERE RECOVERED IN GOOD CONDITION. THE 1948 DESCRIPTION BY W.M.G. AND THE 1952 RECOVERY BY L.F.W. ARE ADEQUATE FOR STATION RECOVERY WITH THE FOLLOWING CHANGE TO THE FORMER, THE PHRASE -AND-, ABOUT 600 YARDS NORTHWEST OF THE FORT POINT COAST GUARD STATION, SHOULD BE REPLACED WITH CONTINUE PAST THE FORT POINT COAST GUARD STATION TO THE NATIONAL PARK SERVICE OFFICE IN BUILDING T-989. THE SEA WALL AND STATION LIE DIRECTLY BEHIND A WHITE SHED ON THE RIGHT HAND SIDE OF BUILDING T-989. DESCRIBED BY S.M. MILLER <p> <h2>STATION RECOVERY (1986) </h2> <p>RECOVERY NOTE BY US POWER SQUADRON 1986 (GRB) RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1988) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 RECOVERED IN GOOD CONDITION. HT0699CLARK RM 1http://www.geocaching.com/mark/details.asp?PID=HT0699CLARK RM 1GeocacheGeocacheCLARK RM 1CGSUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>CLARK RM 1</h1> <b> PID </b> HT0699 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 48 31. (N) 122 28 15. (W) SCALED <br> <b> NAVD 88 </b> 3.376 (meters) 11.08 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.53 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 3.374 (meters) 11.07 (feet) COMP <br> <b> MODELED GRAV</b> 979,981.5 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS I <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> 647,060. </td><td> 1,826,470. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/??) 2.546 (m) 8.35 (f) ADJUSTED 1 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: 10SEG465847(NAD 83) <br>MARKER: DR = REFERENCE MARK DISK <br>SETTING: 36 = SET IN A MASSIVE STRUCTURE <br>SP_SET: CONCRETE SEAWALL <br>STAMPING: NO 1 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>1952 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1969 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1977 </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 1952 AT SAN FRANCISCO. AT SAN FRANCISCO, AT THE PRESIDIO, IN THE TOP OF THE SOUTHWEST CORNER OF THE CONCRETE FOUNDATION OF THE PAINT LOCKER, 69.3 FEET WEST OF THE WEST EDGE OF ENGINEERS DOCK (TORPEDO DOCK), 16.15 FEET SOUTH OF TRIANGULATION STATION CLARK, 12.9 FEET SOUTH OF THE SOUTH EDGE OF THE CONCRETE SEAWALL, AND ABOUT 0.2 FOOT ABOVE THE GROUND. <p> <h2>STATION RECOVERY (1969) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1969 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1977) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1977 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1988) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 THE FOUNDATION HAS BEEN PAVED OVER. HT0700CLARK RM 2http://www.geocaching.com/mark/details.asp?PID=HT0700CLARK RM 2GeocacheGeocacheCLARK RM 2CGSCGS Unknown CacheRegular11United StatesCaliforniaNGS Datasheet <b> TIDAL BM </b> This is a Tidal Bench Mark. <br> <h1>CLARK RM 2</h1> <b> PID </b> HT0700 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 37 48 31. (N) 122 28 15. (W) SCALED <br> <b> NAVD 88 </b> 4.237 (meters) 13.90 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -32.53 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 4.234 (meters) 13.89 (feet) COMP <br> <b> MODELED GRAV</b> 979,981.5 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS I <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 975 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> 647,060. </td><td> 1,826,470. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> NGVD 29 (??/??/??) 3.408 (m) 11.18 (f) ADJUSTED 1 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: 10SEG465847(NAD 83) <br>MARKER: DR = REFERENCE MARK DISK <br>SETTING: 37 = SET IN A MASSIVE RETAINING WALL <br>SP_SET: SEA WALL <br>STAMPING: NO 2 1948 <br>MARK LOGO: CGS <br>STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL <br>SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR <br>SATELLITE: SATELLITE OBSERVATIONS - September 13, 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>1952 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1969 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1977 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1986 </td><td>GOOD </td><td>USPSQD</td></tr><tr><td>19880913</td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1952 AT SAN FRANCISCO. AT SAN FRANCISCO, AT THE PRESIDIO, IN THE TOP OF THE CONCRETE SEAWALL WHICH RUNS WEST OF THE ENGINEERS DOCK (TORPEDO DOCK), 41.88 FEET EAST OF TRIANGULATION STATION CLARK, 37.5 FEET WEST OF THE WEST EDGE OF THE WHARF, 26.3 FEET NORTHEAST OF THE NORTHEAST CORNER OF CORRUGATED BUILDING NO. 985, 1.4 FEET NORTH OF THE SOUTH EDGE OF THE SEAWALL, AND 3.0 FEET ABOVE THE GROUND. <p> <h2>STATION RECOVERY (1969) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1969 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1977) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1977 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1986) </h2> <p>RECOVERY NOTE BY US POWER SQUADRON 1986 (GRB) RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1988) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 RECOVERED IN GOOD CONDITION. HT3408CLIFF HOUSE TURRET HI FINIALhttp://www.geocaching.com/mark/details.asp?PID=HT3408CLIFF HOUSE TURRET HI FINIALGeocacheGeocacheCLIFF HOUSE TURRET HI FINIALUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>CLIFF HOUSE TURRET HI FINIAL</h1> <b> PID </b> HT3408 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> POINT BONITA (1993) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1992)</b> 37 46 42.11030(N) 122 30 50.63450(W) ADJUSTED <br> <b> NAVD 88 </b> <br> <hr> <b> EPOCH DATE </b> 1991.35 <br> <b> LAPLACE CORR</b> 6.08 (seconds) DEFLEC99 <br> <b> GEOID HEIGHT</b> -32.68 (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> <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> 643,783.127 1</td><td>822,594.867</td><td> MT </td><td>0.99992929</td><td> -1 ' 13 59.1"</td></tr><tr><td>SPC CA 3 </td><td>2,112,145.14 5</td><td>979,629.99 </td><td> sFT </td><td>0.99992929</td><td> -1 ' 13 59.1"</td></tr><tr><td>UTM 10 </td><td>4,181,335.674 </td><td>542,791.994</td><td> MT </td><td>0.99962255</td><td> +0 ' 17 51.7"</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> <b> NAD 83(1986)</b> 37 46 42.11272(N) 122 30 50.62421(W) AD(1984.00) 4 <br> <b> NAD 27 </b> 37 46 42.35700(N) 122 30 46.72200(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: 10SEG4279281336(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>UNK </td><td>MONUMENTED</td><td>Report By</td></tr><tr><td>1958 </td><td>SEE DESCRIPTION </td><td>CGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY COAST AND GEODETIC SURVEY 1958 (JCM) THIS BUILDING HAS RECENTLY BEEN RECONSTRUCTED. <p>THIS IS AN INTERSECTION STATION. HT3007COIT MONUMENThttp://www.geocaching.com/mark/details.asp?PID=HT3007COIT MONUMENTGeocacheGeocacheCOIT MONUMENTUnknown CacheRegular11United StatesCaliforniaNGS Datasheet <h1>COIT MONUMENT</h1> <b> PID </b> HT3007 <br> <b> STATE/COUNTY</b> CA/SAN FRANCISCO <br> <b> USGS QUAD </b> SAN FRANCISCO NORTH (1995) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1992)</b> 37 48 08.53054(N) 122 24 20.94429(W) ADJUSTED <br> <b> NAVD 88 </b> <br> <hr> <b> EPOCH DATE </b> 1991.35 <br> <b> LAPLACE CORR</b> 1.32 (seconds) DEFLEC99 <br> <b> GEOID HEIGHT</b> -32.46 (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> <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> 646,247.144 1</td><td>832,182.522</td><td> MT </td><td>0.99992958</td><td> -1 ' 10 00.5"</td></tr><tr><td>SPC CA 3 </td><td>2,120,229.17 6</td><td>011,085.49 </td><td> sFT </td><td>0.99992958</td><td> -1 ' 10 00.5"</td></tr><tr><td>UTM 10 </td><td>4,184,054.133 </td><td>552,307.528</td><td> MT </td><td>0.99963370</td><td> +0 ' 21 51.1"</td></tr> </table> <p> <h2>Superseded Survey Control</h2>
<p> <b> NAD 83(1986)</b> 37 48 08.52661(N) 122 24 20.93859(W) AD(1984.00) 4 <br> <b> NAD 27 </b> 37 48 08.78300(N) 122 24 17.03700(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: 10SEG5230884054(NAD 83) <br>MARKER: 55 = TOWER <br>SETTING: 0 = UNSPECIFIED SETTING <br>MAGNETIC: N = NO MAGNETIC MATERIAL <br>SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR <br>SATELLITE: SATELLITE OBSERVATIONS - April 16, 2002 <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td&g