Benchmark file generated by bmgpx bmgpx by Ron Parker bmgpx@parkrrrr.com LU1502 1038 USGS http://www.geocaching.com/mark/details.asp?PID=LU1502 1038 USGS Geocache Geocache 1038 USGS USGS Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>1038 USGS</h1> <b> PID </b> LU1502 <br> <b> STATE/COUNTY</b> CA/HUMBOLDT <br> <b> USGS QUAD </b> LORD-ELLIS SUMMIT (1973) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 40 54 32. (N) 123 48 39. (W) SCALED <br> <b> NAVD 88 </b> 317.209 (meters) 1040.71 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -28.53 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 317.048 (meters) 1040.18 (feet) COMP <br> <b> MODELED GRAV</b> 980,111.1 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS II <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991. <p>The geoid height was determined by GEOID03. <p>The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.). <p>The modeled gravity was interpolated from observed gravity values. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 1 </td><td> 676,520. </td><td> 1,847,460. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2> <p> NGVD 29 (??/??/92) 316.199 (m) 1037.40 (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Superseded values are not recommended for survey control.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 See file dsdata.txt to determine how the superseded data were derived.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: 10TDL317289(NAD 83) <br>MARKER: DD = SURVEY DISK <br>SETTING: 80 = SET IN A BOULDER <br>STAMPING: 1036.914 B 1906 <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 - October 23, 2002 <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1906 </td><td>MONUMENTED </td><td>USGS</td></tr><tr><td>1935 </td><td>GOOD </td><td>NGS</td></tr><tr><td>20021023</td><td>GOOD </td><td>GEOCAC</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1935 17.3 MI E FROM BLUE LAKE. 17.3 MILES EAST ALONG U.S. HIGHWAY 299 FROM BLUE LAKE, HUMBOLDT COUNTY, AT A HAIRPIN CURVE IN THE HIGHWAY, 100 FEET SOUTHEAST OF REDWOOD HOUSE IN 1931 (FORMERLY CALLED BERRYS RANCH HOUSE), JUST NORTH OF THREE LARGE FORKED OAK TREES, 16 FEET SOUTHWEST OF THE CENTERLINE OF THE HIGHWAY, AND IN THE WEST FACE OF A LARGE BOULDER. A UNITED STATES GEOLOGICAL SURVEY STANDARD DISK, STAMPED 1036.914 B 1906 AND SET VERTICALLY. <p> <h2>STATION RECOVERY (2002) </h2> <p>RECOVERY NOTE BY GEOCACHING 2002 (RRF) N 40 54.552 W 123 48.701 LV0312 108 http://www.geocaching.com/mark/details.asp?PID=LV0312 108 Geocache Geocache 108 CADH CADH Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>108</h1> <b> PID </b> LV0312 <br> <b> STATE/COUNTY</b> CA/HUMBOLDT <br> <b> USGS QUAD </b> ARCATA NORTH (1972) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 40 53 29. (N) 124 04 50. (W) SCALED <br> <b> NAVD 88 </b> 22.942 (meters) 75.27 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -29.98 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 22.932 (meters) 75.24 (feet) COMP <br> <b> MODELED GRAV</b> 980,213.7 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS II <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991. <p>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 1 </td><td> 675,080. </td><td> 1,824,700. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2> <p> NGVD 29 (12/02/92) 21.916 (m) 71.90 (f) ADJUSTED 1 2 <br> <p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10TDL089272(NAD 83) <br>MARKER: DD = SURVEY DISK <br>SETTING: 31 = SET IN A PAVEMENT SUCH AS STREET, SIDEWALK, CURB, ETC. <br>SP_SET: BRIDGE WALKWAY <br>STAMPING: 108 H-1-ARC <br>MARK LOGO: CADH <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>CADH</td></tr><tr><td>1967 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1971 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1988 </td><td>GOOD </td><td>NGS</td></tr><tr><td>20020717</td><td>MARK NOT FOUND </td><td>CADT</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1967 2 MI N FROM ARCATA. 2.05 MILES NORTH ALONG U.S. HIGHWAY 101 FROM FOURTH STREET OVERPASS AT ARCATA, 0.4 MILE SOUTH OF THE JUNCTION OF STATE HIGHWAY 299, IN THE TOP AND 0.3 FOOT NORTH OF THE SOUTH END OF THE EAST CONCRETE CURB OF ARCATA OVERHEAD BRIDGE NO. 4.79R, 18 FEET EAST OF THE CENTER LINE OF THE EAST LANES OF THE HIGHWAY, AND ABOUT 1 FOOT HIGHER THAN THE HIGHWAY. <p> <h2>STATION RECOVERY (1971) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1971 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1988) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 RECOVERED IN GOOD CONDITION. A NEW TO REACH FOLLOWS. 0.6 KM (0.35 MI) SOUTHERLY ALONG U.S. HIGHWAY 101 FROM THE JUNCTION OF STATE HIGHWAY 299 IN ARCATA. <p> <h2>STATION RECOVERY (2002) </h2> <p>RECOVERY NOTE BY CALTRANS 2002 (REB) I BELIEVE THIS MARK WAS DESTROYED DURING MODIFICATION OF ARCATA OVERHEAD BRIDGE 4.79R. LV0397 130 CAGS http://www.geocaching.com/mark/details.asp?PID=LV0397 130 CAGS Geocache Geocache 130 CAGS CGS Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>130 CAGS</h1> <b> PID </b> LV0397 <br> <b> STATE/COUNTY</b> CA/HUMBOLDT <br> <b> USGS QUAD </b> SCOTIA (1970) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 40 29 29. (N) 124 05 59. (W) SCALED <br> <b> NAVD 88 </b> 40.88 (+/-2cm) 134.1 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -30.70 (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 1 </td><td> 630,720. </td><td> 1,822,020. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2> <p> NGVD 29 (??/??/??) 39.898 (m) 130.90 (f) ADJUSTED 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: 10TDK068828(NAD 83) <br>MARKER: DD = SURVEY DISK <br>SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT <br>SP_SET: SET IN TOP OF CONCRETE MONUMENT <br>STAMPING: 130 1935 <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>1935 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1942 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1967 </td><td>MARK NOT FOUND </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1942 AT WILDWOOD. AT WILDWOOD, HUMBOLDT COUNTY, ON REDWOOD HIGHWAY, 130 FEET SOUTH EAST OF THE SOUTH CORNER OF THE VIOLA HOTEL, 63 FEET NORTHEAST OF THE CENTERLINE OF THE HIGHWAY, 48 FEET NORTHEAST OF THE NORTHWEST END OF THE BRIDGE OVER EEL RIVER, BETWEEN A CONCRETE PARAPET AND THE RIVER, AND NEAR A WHITE WOODEN WITNESS POST. A STATE SURVEY STANDARD DISK, STAMPED 130 1935 AND SET IN THE TOP OF A CONCRETE POST. <p> <h2>STATION RECOVERY (1967) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1967 MARK NOT FOUND. LU1429 17 RS USGS http://www.geocaching.com/mark/details.asp?PID=LU1429 17 RS USGS Geocache Geocache 17 RS USGS USGS Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>17 RS USGS</h1> <b> PID </b> LU1429 <br> <b> STATE/COUNTY</b> CA/HUMBOLDT <br> <b> USGS QUAD </b> BRIDGEVILLE (1969) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 40 28 10. (N) 123 47 56. (W) SCALED <br> <b> NAVD 88 </b> 197.72 (+/-2cm) 648.7 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -29.64 (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 1 </td><td> 627,720. </td><td> 1,847,470. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2> <p> NGVD 29 (??/??/92) 196.752 (m) 645.51 (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: 10TDK322801(NAD 83) <br>MARKER: DD = SURVEY DISK <br>SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT <br>SP_SET: SET IN TOP OF CONCRETE MONUMENT <br>STAMPING: 645 17 RS 1933 <br>STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO <br>STABILITY: SURFACE MOTION <br>SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR <br>SATELLITE: SATELLITE OBSERVATIONS - May 18, 2003 <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1933 </td><td>MONUMENTED </td><td>USGS</td></tr><tr><td>1949 </td><td>GOOD </td><td>NGS</td></tr><tr><td>20030518</td><td>GOOD </td><td>GEOCAC</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1949 AT BRIDGEVILLE. AT BRIDGEVILLE, ABOUT 30 YARDS EAST OF THE POST OFFICE, ALONG STATE HIGHWAY 36, AT CONCRETE HIGHWAY BRIDGE 4-101 OVER THE VAN DUZEN RIVER, IN THE TOP OF THE CENTER OF THE SQUARE CONCRETE POST AT THE NORTH END OF THE EAST CONCRETE GUARD RAIL, 15 FEET EAST OF THE CENTERLINE OF THE HIGHWAY, AND ABOUT 4 FEET HIGHER THAN THE HIGHWAY. NOTE-- THIS MARK WAS ERRONEOUSLY DESIGNATED 81 RS BY THE U.S. COAST AND GEODETIC SURVEY DURING THE 1935 LEVELING. THE MARK IS IN GOOD CONDITION AND DOES NOT APPEAR TO HAVE BEEN DISTURBED. R.K.R. <p> <h2>STATION RECOVERY (2003) </h2> <p>RECOVERY NOTE BY GEOCACHING 2003 (JBC) AS DESCRIBED BY NATIONAL GEODETIC SURVEY IN 1949. BRIDGE DESCRIBED IS NO LONGER USED FOR VEHICULAR TRAFFIC. GIVEN TO REACH HOLDS, EXCEPT THAT 'ALONG STATE HIGHWAY 36' SHOULD BE CHANGED TO 'JUST SOUTH OF KNEELAND ROAD (COUNTY ROAD F6F060), WHERE IT TURNS NORTH, JUST EAST OF THE BRIDGEVILLE POST OFFICE', AND 'CONCRETE HIGHWAY BRIDGE 4-101 OVER THE VAN DUZEN RIVER' SHOULD BE CHANGED TO 'CONCRETE PEDESTRIAN BRIDGE, DESIGNATED 'HISTORIC BRIDGE - BRIDGEVILLE BRIDGE 1925', OVER THE VAN DUZEN RIVER'. LU1424 19 RS USGS http://www.geocaching.com/mark/details.asp?PID=LU1424 19 RS USGS Geocache Geocache 19 RS USGS USGS Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>19 RS USGS</h1> <b> PID </b> LU1424 <br> <b> STATE/COUNTY</b> CA/HUMBOLDT <br> <b> USGS QUAD </b> BRIDGEVILLE (1969) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 40 27 50. (N) 123 51 32. (W) SCALED <br> <b> NAVD 88 </b> 131.00 (+/-2cm) 429.8 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -29.91 (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 1 </td><td> 627,210. </td><td> 1,842,370. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2> <p> NGVD 29 (??/??/92) 130.015 (m) 426.56 (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: 10TDK271796(NAD 83) <br>MARKER: DD = SURVEY DISK <br>SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT <br>SP_SET: SET IN TOP OF CONCRETE MONUMENT <br>STAMPING: 19 RS 426 1933 <br>STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO <br>STABILITY: SURFACE MOTION <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1933 </td><td>MONUMENTED </td><td>USGS</td></tr><tr><td>1949 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1949 3.8 MI W FROM BRIDGEVILLE. 3.8 MILES WEST ALONG STATE HIGHWAY 36 FROM THE POST OFFICE AT BRIDGEVILLE, AT CONCRETE BRIDGE 4-98 OVER THE VAN DUZEN RIVER, IN THE TOP OF THE APPROXIMATE CENTER OF THE SQUARE CONCRETE POST AT THE SOUTHWEST END OF THE SOUTHEAST CONCRETE GUARD RAIL, 14.0 FEET SOUTHEAST OF THE CENTERLINE OF THE HIGHWAY, AND ABOUT 3 FEET HIGHER THAN THE HIGHWAY. LU1422 20 RS USGS http://www.geocaching.com/mark/details.asp?PID=LU1422 20 RS USGS Geocache Geocache 20 RS USGS USGS Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>20 RS USGS</h1> <b> PID </b> LU1422 <br> <b> STATE/COUNTY</b> CA/HUMBOLDT <br> <b> USGS QUAD </b> REDCREST (1969) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 40 28 48. (N) 123 53 28. (W) SCALED <br> <b> NAVD 88 </b> 118.92 (+/-2cm) 390.2 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -30.00 (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 1 </td><td> 629,050. </td><td> 1,839,670. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2> <p> NGVD 29 (??/??/92) 117.936 (m) 386.93 (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: 10TDK244814(NAD 83) <br>MARKER: DD = SURVEY DISK <br>SETTING: 36 = SET IN A MASSIVE STRUCTURE <br>SP_SET: BRIDGE <br>STAMPING: 20 RS <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>USGS</td></tr><tr><td>1948 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1948 6.1 MI W FROM BRIDGEVILLE. 6.1 MILES WEST ALONG STATE HIGHWAY 36 FROM THE VAN DUZEN RIVER BRIDGE AT BRIDGEVILLE, HUMBOLDT COUNTY, AT THE SOUTHWEST CORNER OF A BRIDGE, IN THE CONCRETE RAIL, AND 36 FEET SOUTH OF THE CENTERLINE OF THE HIGHWAY. A UNITED STATES GEOLOGICAL SURVEY STANDARD DISK, STAMPED 20 RS. LU1418 22 RS USGS http://www.geocaching.com/mark/details.asp?PID=LU1418 22 RS USGS Geocache Geocache 22 RS USGS USGS Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>22 RS USGS</h1> <b> PID </b> LU1418 <br> <b> STATE/COUNTY</b> CA/HUMBOLDT <br> <b> USGS QUAD </b> REDCREST (1969) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 40 28 41. (N) 123 55 31. (W) SCALED <br> <b> NAVD 88 </b> 108.39 (+/-2cm) 355.6 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -30.16 (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 1 </td><td> 628,900. </td><td> 1,836,770. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2> <p> NGVD 29 (??/??/92) 107.416 (m) 352.41 (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: 10TDK215812(NAD 83) <br>MARKER: DD = SURVEY DISK <br>SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT <br>SP_SET: SET IN TOP OF CONCRETE MONUMENT <br>STAMPING: 22 RS <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>USGS</td></tr><tr><td>1948 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1948 8.6 MI W FROM BRIDGEVILLE. 8.6 MILES WEST ALONG STATE HIGHWAY 36 FROM THE VAN DUZEN RIVER BRIDGE AT BRIDGEVILLE, HUMBOLDT COUNTY, AND 21 FEET SOUTH OF THE CENTERLINE OF THE HIGHWAY. A UNITED STATES GEOLOGICAL SURVEY STANDARD DISK, STAMPED 22 RS AND SET IN THE TOP OF A CONCRETE POST. LU1416 23 RS USGS http://www.geocaching.com/mark/details.asp?PID=LU1416 23 RS USGS Geocache Geocache 23 RS USGS USGS Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>23 RS USGS</h1> <b> PID </b> LU1416 <br> <b> STATE/COUNTY</b> CA/HUMBOLDT <br> <b> USGS QUAD </b> REDCREST (1969) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 40 28 42. (N) 123 57 02. (W) SCALED <br> <b> NAVD 88 </b> 86.68 (+/-2cm) 284.4 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -30.27 (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 1 </td><td> 628,980. </td><td> 1,834,630. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2> <p> NGVD 29 (??/??/92) 85.705 (m) 281.18 (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: 10TDK194812(NAD 83) <br>MARKER: DD = SURVEY DISK <br>SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT <br>SP_SET: SET IN TOP OF CONCRETE MONUMENT <br>STAMPING: 23 RS <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>USGS</td></tr><tr><td>1948 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1948 9.7 MI E FROM CARLOTTA. 9.7 MILES EAST ALONG STATE HIGHWAY 36 FROM THE NORTHWESTERN PACIFIC RAILROAD STATION AT CARLOTTA, HUMBOLDT COUNTY, AND 30 FEET SOUTHWEST OF THE CENTERLINE OF THE HIGHWAY. A UNITED STATES GEOLOGICAL SURVEY STANDARD DISK, STAMPED 23 RS AND SET IN THE TOP OF A CONCRETE POST. LU1414 24 RS USGS http://www.geocaching.com/mark/details.asp?PID=LU1414 24 RS USGS Geocache Geocache 24 RS USGS USGS Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>24 RS USGS</h1> <b> PID </b> LU1414 <br> <b> STATE/COUNTY</b> CA/HUMBOLDT <br> <b> USGS QUAD </b> REDCREST (1969) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 40 29 27. (N) 123 58 11. (W) SCALED <br> <b> NAVD 88 </b> 93.04 (+/-2cm) 305.2 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -30.32 (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 1 </td><td> 630,400. </td><td> 1,833,040. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2> <p> NGVD 29 (??/??/92) 92.066 (m) 302.05 (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: 10TDK178826(NAD 83) <br>MARKER: DD = SURVEY DISK <br>SETTING: 66 = SET IN ROCK OUTCROP <br>SP_SET: ROCK OUTCROP <br>STAMPING: 24 RS <br>STABILITY: A = MOST RELIABLE AND EXPECTED TO HOLD <br>STABILITY: POSITION/ELEVATION WELL <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>UNK </td><td>MONUMENTED </td><td>USGS</td></tr><tr><td>1948 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1948 7.7 MI E FROM CARLOTTA. 7.7 MILES EAST ALONG STATE HIGHWAY 36 FROM THE NORTHWESTERN PACIFIC RAILROAD STATION AT CARLOTTA, HUMBOLDT COUNTY, 27 FEET SOUTHEAST OF THE CENTERLINE OF THE HIGHWAY, AND IN THE TOP OF A ROCK OUTCROP. A UNITED STATES GEOLOGICAL SURVEY STANDARD DISK, STAMPED 24 RS. LU1358 2448.2 USGS http://www.geocaching.com/mark/details.asp?PID=LU1358 2448.2 USGS Geocache Geocache 2448.2 USGS USGS Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>2448.2 USGS</h1> <b> PID </b> LU1358 <br> <b> STATE/COUNTY</b> CA/HUMBOLDT <br> <b> USGS QUAD </b> HARRIS (1969) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 40 06 29. (N) 123 42 50. (W) SCALED <br> <b> NAVD 88 </b> 747.50 (+/-2cm) 2452.4 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -30.02 (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 1 </td><td> 587,450. </td><td> 1,853,890. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2> <p> NGVD 29 (??/??/92) 746.550 (m) 2449.31 (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: 10TDK391399(NAD 83) <br>MARKER: N = NAIL <br>SETTING: 30 = SET IN A LIGHT STRUCTURE <br>SP_SET: TREE <br>STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>UNK </td><td>MONUMENTED </td><td>USGS</td></tr><tr><td>1942 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1942 4.5 MI NW FROM HARRIS. 4.5 MILES NORTHWEST ALONG THE GARBERVILLE ROAD FROM THE PUBLIC SCHOOL AT HARRIS, HUMBOLDT COUNTY, 2.9 MILES SOUTHEAST OF ROBINSON RANCH IN 1935, AT A STREAM CROSSING, ON THE NORTH EDGE OF A SHARP ANGLE IN THE ROAD, AND IN THE SOUTH ROOT OF A 15-INCH OAK TREE PAINTED 2448.2. A UNITED STATES GEOLOGICAL SURVEY STANDARD COPPER NAIL AND WASHER. LV0336 26 RS USGS http://www.geocaching.com/mark/details.asp?PID=LV0336 26 RS USGS Geocache Geocache 26 RS USGS USGS Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>26 RS USGS</h1> <b> PID </b> LV0336 <br> <b> STATE/COUNTY</b> CA/HUMBOLDT <br> <b> USGS QUAD </b> HYDESVILLE (1979) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 40 30 44. (N) 124 00 48. (W) SCALED <br> <b> NAVD 88 </b> 50.84 (+/-2cm) 166.8 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -30.45 (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 1 </td><td> 632,860. </td><td> 1,829,400. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2> <p> NGVD 29 (??/??/??) 49.864 (m) 163.60 (f) ADJUSTED 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: 10TDK141851(NAD 83) <br>MARKER: DD = SURVEY DISK <br>SETTING: 0 = UNSPECIFIED SETTING <br>STAMPING: 26 RS <br>STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>UNK </td><td>MONUMENTED </td><td>USGS</td></tr><tr><td>1935 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1935 3.6 MI E FROM CARLOTTA. 3.6 MILES EAST ALONG STATE HIGHWAY 36 FROM THE NORTHWESTERN PACIFIC RAILROAD STATION AT CARLOTTA, HUMBOLDT COUNTY, 75 FEET SOUTHEAST OF A HOUSE OWNED IN 1935 BY THE HAMMOND LUMBER CO., AND 30 FEET NORTH OF THE CENTERLINE OF THE HIGHWAY. A UNITED STATES GEOLOGICAL SURVEY STANDARD DISK, STAMPED 26 RS AND SET IN A DRILL HOLE. LV0333 28 RS RESET 1967 http://www.geocaching.com/mark/details.asp?PID=LV0333 28 RS RESET 1967 Geocache Geocache 28 RS RESET 1967 CADH Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>28 RS RESET 1967</h1> <b> PID </b> LV0333 <br> <b> STATE/COUNTY</b> CA/HUMBOLDT <br> <b> USGS QUAD </b> HYDESVILLE (1979) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 40 32 14. (N) 124 03 48. (W) SCALED <br> <b> NAVD 88 </b> 38.91 (+/-2cm) 127.7 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -30.59 (meters) GEOID03 <br> <p> <b> VERT ORDER </b> THIRD (See Below) <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the NGVD 29 superseded value. <p>The geoid height was determined by GEOID03. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 1 </td><td> 635,730. </td><td> 1,825,230. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2> <p> NGVD 29 (??/??/??) 37.92 (m) 124.4 (f) RESET 3 <br> <p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10TDK099879(NAD 83) <br>MARKER: DD = SURVEY DISK <br>SETTING: 36 = SET IN A MASSIVE STRUCTURE <br>SP_SET: BRIDGE <br>STAMPING: 28 RS USGS RESET 1967 <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>1967 </td><td>MONUMENTED </td><td>CADH</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY CA DIV OF HIGHWAYS 1967 1.9 MI E FROM HYDESVILLE. ABOUT 1.9 MILES EAST ALONG STATE HIGHWAY 36 FROM THE SCHOOL AT HYDESVILLE, AT THE WEST END OF A RAILROAD BRIDGE OVER YAGER CREEK, 12 FEET NORTH OF THE CENTER LINE OF THE TRACKS, AND SET IN THE TOP OF THE CONCRETE ABUTMENT. LV0332 28 RS USGS http://www.geocaching.com/mark/details.asp?PID=LV0332 28 RS USGS Geocache Geocache 28 RS USGS CGS Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>28 RS USGS</h1> <b> PID </b> LV0332 <br> <b> STATE/COUNTY</b> CA/HUMBOLDT <br> <b> USGS QUAD </b> HYDESVILLE (1979) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 40 32 13. (N) 124 03 48. (W) SCALED <br> <b> NAVD 88 </b> 40.28 (+/-2cm) 132.2 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -30.59 (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 1 </td><td> 635,700. </td><td> 1,825,220. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2> <p> NGVD 29 (??/??/??) 39.294 (m) 128.92 (f) ADJUSTED 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: 10TDK099878(NAD 83) <br>MARKER: DD = SURVEY DISK <br>SETTING: 36 = SET IN A MASSIVE STRUCTURE <br>SP_SET: PIER <br>STAMPING: 28 RS 1933 <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>1933 </td><td>MONUMENTED </td><td>CGS</td></tr><tr><td>1953 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1953 1.9 MI E FROM HYDESVILLE. 1.9 MILES EAST ALONG STATE HIGHWAY 36 FROM THE PUBLIC SCHOOL AT HYDESVILLE, HUMBOLDT COUNTY, AT A BRIDGE OVER YAGER CREEK (A TRIBUTARY TO VAN DUZEN RIVER), IN THE TOP OF THE NORTH END OF THE WEST PIER OF FOUR PIERS, AND 12.5 FEET NORTH OF THE CENTERLINE OF THE HIGHWAY. A UNITED STATES GEOLOGICAL SURVEY STANDARD DISK, STAMPED 28 RS 1933. LU1533 3080 USGS http://www.geocaching.com/mark/details.asp?PID=LU1533 3080 USGS Geocache Geocache 3080 USGS USGS Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>3080 USGS</h1> <b> PID </b> LU1533 <br> <b> STATE/COUNTY</b> CA/HUMBOLDT <br> <b> USGS QUAD </b> LORD-ELLIS SUMMIT (1973) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 40 53 15. (N) 123 51 57. (W) SCALED <br> <b> NAVD 88 </b> 939.87 (+/-2cm) 3083.6 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -28.82 (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 1 </td><td> 674,240. </td><td> 1,842,780. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2> <p> NGVD 29 (??/??/92) 938.842 (m) 3080.18 (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: 10TDL270266(NAD 83) <br>MARKER: DB = BENCH MARK DISK <br>SETTING: 80 = SET IN A BOULDER <br>STAMPING: 3080 06 <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>USGS</td></tr><tr><td>1942 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1942 13.6 MI SE FROM KORBEL. ABOUT 10 MILES EAST ALONG U.S. HIGHWAY 299 FROM KORBEL, HUMBOLDT COUNTY, THENCE 3.6 MILES SOUTH ALONG THE BALD MOUNTAIN ROAD, 0.4 MILE NORTH OF SOME OLD LOGGING-CAMP BUILDINGS IN 1942, 168 FEET SOUTH OF THE JUNCTION OF A ROAD LEADING EAST INTO AN OPEN FIELD, 21 FEET SOUTH OF A LONE DOUGLAS FIR TREE, 12 FEET EAST OF THE CENTERLINE OF THE ROAD, IN THE TOP OF A BOULDER, AND ABOUT 3-1/2 FEET ABOVE THE LEVEL OF THE ROAD, A STANDARD DIS, (USGS), STAMPED 3080 06. LV0277 32 http://www.geocaching.com/mark/details.asp?PID=LV0277 32 Geocache Geocache 32 CA1220 CA1220 Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>32</h1> <b> PID </b> LV0277 <br> <b> STATE/COUNTY</b> CA/HUMBOLDT <br> <b> USGS QUAD </b> EUREKA (1972) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 40 47 28. (N) 124 10 40. (W) SCALED <br> <b> NAVD 88 </b> 4.810 (meters) 15.78 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -30.58 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 4.808 (meters) 15.77 (feet) COMP <br> <b> MODELED GRAV</b> 980,206.8 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS II <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991. <p>The geoid height was determined by GEOID03. <p>The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.). <p>The modeled gravity was interpolated from observed gravity values. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 1 </td><td> 664,150. </td><td> 1,816,230. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2> <p> NGVD 29 (12/02/92) 3.804 (m) 12.48 (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: 10TDL006162(NAD 83) <br>MARKER: B = BOLT <br>SETTING: 9 = SET IN PREFABRICATED CONCRETE POST IMBEDDED IN GROUND <br>SP_SET: PREFAB CONC. BLOCK IN EARTH <br>MARK LOGO: CA1220 <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>CA1220</td></tr><tr><td>1967 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1971 </td><td>GOOD</td><td>NGS</td></tr><tr><td>19880221</td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1967 AT EUREKA. AT EUREKA, ALONG U.S. HIGHWAY 101 (BROADWAY), IN THE CENTER OF THE INTERSECTION OF BROADWAY AND WABASH AVENUE, AND IN THE TOP OF A CONCRETE POST 1 FOOT UNDER GROUND. ACCESS IS HAD THRU THE REMOVAL OF A MAN HOLE COVER MARKED WATER. <p> <h2>STATION RECOVERY (1971) </h2> <p>RECOVERED 1971 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1988) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 RECOVERED IN GOOD CONDITION. MX0609 320.75 H CO http://www.geocaching.com/mark/details.asp?PID=MX0609 320.75 H CO Geocache Geocache 320.75 H CO CA-023 Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>320.75 H CO</h1> <b> PID </b> MX0609 <br> <b> STATE/COUNTY</b> CA/HUMBOLDT <br> <b> USGS QUAD </b> HOOPA (1979) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 41 03 41. (N) 123 41 06. (W) SCALED <br> <b> NAVD 88 </b> 98.734 (meters) 323.93 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -27.97 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 98.685 (meters) 323.77 (feet) COMP <br> <b> MODELED GRAV</b> 980,138.9 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> SECOND CLASS 0 <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 1 </td><td> 693,240. </td><td> 1,858,390. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2> <p> NGVD 29 (??/??/??) 97.716 (m) 320.59 (f) ADJUSTED 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: 10TDL424457(NAD 83) <br>MARKER: DD = SURVEY DISK <br>SETTING: 36 = SET IN A MASSIVE STRUCTURE <br>SP_SET: BRIDGE <br>STAMPING: 320.75 <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>CA-023</td></tr><tr><td>1935 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1935 1.1 MI N FROM HOOPA. 1.1 MILES NORTH ALONG STATE HIGHWAY 96 FROM HOOPA, HUMBOLDT COUNTY, AT THE HIGHWAY BRIDGE OVER TRINITY RIVER, AND IN THE EAST END OF THE NORTH ABUTMENT. A HUMBOLDT COUNTY BRONZE DISK, STAMPED 320.75. LV0137 36 RS USGS http://www.geocaching.com/mark/details.asp?PID=LV0137 36 RS USGS Geocache Geocache 36 RS USGS USGS Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>36 RS USGS</h1> <b> PID </b> LV0137 <br> <b> STATE/COUNTY</b> CA/HUMBOLDT <br> <b> USGS QUAD </b> CRANNELL (1975) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 41 00 34. (N) 124 04 58. (W) SCALED <br> <b> NAVD 88 </b> 11.479 (meters) 37.66 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -29.74 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 11.474 (meters) 37.64 (feet) COMP <br> <b> MODELED GRAV</b> 980,220.7 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> SECOND CLASS 0 <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 1 </td><td> 688,190. </td><td> 1,824,820. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2> <p> NGVD 29 (??/??/??) 10.452 (m) 34.29 (f) ADJUSTED 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: 10TDL089403(NAD 83) <br>MARKER: DD = SURVEY DISK <br>SETTING: 30 = SET IN A LIGHT STRUCTURE <br>SP_SET: CONCRETE FOOTING <br>STAMPING: 36 RS 1933 <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>1933 </td><td>MONUMENTED </td><td>USGS</td></tr><tr><td>1947 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1965 </td><td>MARK NOT FOUND </td><td>USPSQD</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1947 AT CRANNELL. AT CRANNELL, HUMBOLDT COUNTY, ON AN ABANDONED RAILROAD, 7 FEET EAST OF THE NORTHEAST CORNER OF THE YARD OFFICE, AND IN THE CONCRETE FOOTING OF THE 12- BY 12-INCH WOODEN UPRIGHTS. A UNITED STATES GEOLOGICAL SURVEY STANDARD DISK, STAMPED 36 RS 1933. <p> <h2>STATION RECOVERY (1965) </h2> <p>RECOVERY NOTE BY US POWER SQUADRON 1965 (LPS) MARK NOT FOUND. LV0244 36.23 NWPRR http://www.geocaching.com/mark/details.asp?PID=LV0244 36.23 NWPRR Geocache Geocache 36.23 NWPRR NWPRR Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>36.23 NWPRR</h1> <b> PID </b> LV0244 <br> <b> STATE/COUNTY</b> CA/HUMBOLDT <br> <b> USGS QUAD </b> FORTUNA (1972) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 40 37 02. (N) 124 12 02. (W) SCALED <br> <b> NAVD 88 </b> 11.42 (+/-2cm) 37.5 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -30.97 (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 1 </td><td> 644,900. </td><td> 1,813,830. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2> <p> NGVD 29 (??/??/??) 10.432 (m) 34.23 (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: 10TCK984969(NAD 83) <br>MARKER: S = SPIKE <br>SETTING: 17 = SET INTO TOP OF METAL PIPE DRIVEN INTO GROUND <br>SP_SET: METAL PIPE DRIVEN INTO GROUND <br>STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>UNK </td><td>MONUMENTED </td><td>NWPRR</td></tr><tr><td>1935 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1967 </td><td>MARK NOT FOUND </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1935 AT FERNBRIDGE. AT FERNBRIDGE, HUMBOLDT COUNTY, ON THE NORTHWESTERN PACIFIC RAILROAD, 34.5 FEET NORTH OF THE SIGNAL AT DOOR 1 OF THE STATION, AND 8 FEET NORTH OF THE CENTERLINE OF THE TRACK. A RAILROAD SPIKE, DRIVEN IN THE TOP OF A 2-INCH IRON PIPE PROJECTING 17 INCHES ABOVE GROUND. <p> <h2>STATION RECOVERY (1967) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1967 MARK NOT FOUND. LU1376 452.8 USGS http://www.geocaching.com/mark/details.asp?PID=LU1376 452.8 USGS Geocache Geocache 452.8 USGS USGS Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>452.8 USGS</h1> <b> PID </b> LU1376 <br> <b> STATE/COUNTY</b> CA/HUMBOLDT <br> <b> USGS QUAD </b> ALDERPOINT (1969) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 40 10 33. (N) 123 36 42. (W) SCALED <br> <b> NAVD 88 </b> 139.33 (+/-2cm) 457.1 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -29.81 (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 1 </td><td> 594,810. </td><td> 1,862,740. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2> <p> NGVD 29 (??/??/92) 138.406 (m) 454.09 (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: 10TDK479474(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>USGS</td></tr><tr><td>1942 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1942 AT ALDERPOINT. AT ALDERPOINT, HUMBOLDT COUNTY, 350 FEET NORTHWEST OF THE POST OFFICE, IN THE NORTHWEST CORNER OF A FORK IN THE ROAD LEADING NORTH TO THE NORTHWESTERN PACIFIC RAILROAD STATION, AT THE SOUTHEAST CORNER OF THE HORRELL GARAGE IN 1935, AND IN THE CENTER OF THE NORTH SIDE OF A CONCRETE VALVE BOX. A CHISELED SQUARE. LU1518 465 B http://www.geocaching.com/mark/details.asp?PID=LU1518 465 B Geocache Geocache 465 B USGS USGS Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>465 B</h1> <b> PID </b> LU1518 <br> <b> STATE/COUNTY</b> CA/HUMBOLDT <br> <b> USGS QUAD </b> WILLOW CREEK (1979) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 40 56 41. (N) 123 38 00. (W) SCALED <br> <b> NAVD 88 </b> 141.666 (meters) 464.78 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -27.89 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 141.597 (meters) 464.56 (feet) COMP <br> <b> MODELED GRAV</b> 980,133.2 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS II <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991. <p>The geoid height was determined by GEOID03. <p>The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.). <p>The modeled gravity was interpolated from observed gravity values. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 1 </td><td> 680,210. </td><td> 1,862,490. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2> <p> NGVD 29 (12/02/92) 140.637 (m) 461.41 (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: 10TDL466328(NAD 83) <br>MARKER: DD = SURVEY DISK <br>SETTING: 80 = SET IN A BOULDER <br>SP_SET: BOULDER <br>STAMPING: 460.951 B 06 <br>MARK LOGO: USGS <br>STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO <br>STABILITY: SURFACE MOTION <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>UNK </td><td>MONUMENTED </td><td>USGS</td></tr><tr><td>1935 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1987 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1935 AT WILLOW CREEK. AT WILLOW CREEK, HUMBOLDT COUNTY, ON STATE HIGHWAY 96, AT HIGHWAY STATION 503+50, ABOUT 160 FEET WEST OF THE WILLOW CREEK HOTEL, 13 FEET WEST OF AN AAA SIGN HOOPA 12 MILES, 52 FEET SOUTHWEST OF THE CENTERLINE OF THE HIGHWAY, 59 FEET NORTHWEST OF A 4-FOOT FIR TREE, AND IN THE TOP OF A ROCK. A UNITED STATES GEOLOGICAL SURVEY STANDARD DISK, STAMPED 460.951 B 06. <p> <h2>STATION RECOVERY (1987) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1987 RECOVERED IN GOOD CONDITION. A NEW DESCRIPTION FOLLOWS. 0.6 KM (0.35 MI) NORTH ALONG STATE HIGHWAY 96 FROM THE JUNCTION OF STATE HIGHWAY 299 IN WILLOW CREEK, IN TOP OF THE NORTH END OF A 3 BY 6 FOOT BOULDER THAT PROJECTS 12-INCHES ABOVE THE GROUND SURFACE, 28.2 M (92.5 FT) NORTH OF THE CENTER OF BRANNAN MOUNTAIN ROAD, AND 8.0 M (26.2 FT) SOUTHWEST OF THE CENTERLINE OF THE HIGHWAY. NOTE--THE DISK HAS BEEN MUTILATED, BUT IS SOLID IN PLACE. THE MARK IS 0.5 M ABOVE THE HIGHWAY. LV0141 5 USGS http://www.geocaching.com/mark/details.asp?PID=LV0141 5 USGS Geocache Geocache 5 USGS USGS Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>5 USGS</h1> <b> PID </b> LV0141 <br> <b> STATE/COUNTY</b> CA/HUMBOLDT <br> <b> USGS QUAD </b> CRANNELL (1975) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 41 01 41. (N) 124 02 15. (W) SCALED <br> <b> NAVD 88 </b> 59.038 (meters) 193.69 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -29.46 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 59.012 (meters) 193.61 (feet) COMP <br> <b> MODELED GRAV</b> 980,187.6 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> SECOND CLASS 0 <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 1 </td><td> 690,170. </td><td> 1,828,680. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2> <p> NGVD 29 (??/??/??) 58.003 (m) 190.30 (f) ADJUSTED 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: 10TDL127423(NAD 83) <br>MARKER: S = SPIKE <br>SETTING: 30 = SET IN A LIGHT STRUCTURE <br>SP_SET: SPIKE IN STUMP <br>STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>UNK </td><td>MONUMENTED </td><td>USGS</td></tr><tr><td>1945 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1945 3.4 MI E FROM CRANNELL. 3.4 MILES EAST ALONG THE ROAD TO CAMP NO. 20 FROM CRANNELL, HUMBOLDT COUNTY, 2.6 MILES WEST OF CAMP NO. 20, 85 FEET SOUTH OF THE SOUTH END OF A COVERED WOODEN BRIDE, 18 FEET WEST OF THE CENTERLINE OF THE ROAD, NEAR A WHITE WOODEN WITNESS POST, AND IN THE 5-FOOT STUMP OF A REDWOOD TREE (THE STUMP IS MARKED 89.375). AN IRON SPIKE. MX0614 511.17 USBR http://www.geocaching.com/mark/details.asp?PID=MX0614 511.17 USBR Geocache Geocache 511.17 USBR BOR Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>511.17 USBR</h1> <b> PID </b> MX0614 <br> <b> STATE/COUNTY</b> CA/HUMBOLDT <br> <b> USGS QUAD </b> WEITCHPEC (1979) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 41 09 22. (N) 123 41 03. (W) SCALED <br> <b> NAVD 88 </b> 156.77 (+/-2cm) 514.3 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -27.83 (meters) GEOID03 <br> <p> <b> VERT ORDER </b> ? (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 1 </td><td> 703,760. </td><td> 1,858,660. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2> <p> NGVD 29 (??/??/??) 155.748 (m) 510.98 (f) ADJUSTED ? <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: 10TDL425563(NAD 83) <br>MARKER: N = NAIL <br>SETTING: 30 = SET IN A LIGHT STRUCTURE <br>SP_SET: TREE <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>BOR</td></tr><tr><td>1932 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1935 </td><td>MARK NOT FOUND </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1932 3.4 MI S FROM WEITCHPEC. 3.4 MILES SOUTH ALONG STATE HIGHWAY 96 FROM WEITCHPEC, HUMBOLDT COUNTY, AT HIGHWAY STATION 262+25 ON THE OLD ROUTE OF THE HIGHWAY, AND 25 FEET NORTH OF THE CENTERLINE OF THE OLD HIGHWAY. A NAIL IN THE TRUNK OF A 12-INCH MADRONA TREE. <p> <h2>STATION RECOVERY (1935) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1935 MARK NOT FOUND. MX0657 513 USGS http://www.geocaching.com/mark/details.asp?PID=MX0657 513 USGS Geocache Geocache 513 USGS USGS Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>513 USGS</h1> <b> PID </b> MX0657 <br> <b> STATE/COUNTY</b> CA/HUMBOLDT <br> <b> USGS QUAD </b> WEITCHPEC (1979) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 41 12 10. (N) 123 45 02. (W) SCALED <br> <b> NAVD 88 </b> 157.472 (meters) 516.64 (feet) POSTED <br> <hr> <b> GEOID HEIGHT</b> -28.05 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 157.400 (meters) 516.40 (feet) COMP <br> <b> MODELED GRAV</b> 980,146.0 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> * POSTED, Code F , SEE BELOW <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 1992. * This is a POSTED BENCH MARK height. Code F indicates a distribution rate greater than 8.0 mm/km. <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 1 </td><td> 709,050. </td><td> 1,853,190. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2> <p> NGVD 29 (??/??/92) 156.45 (m) 513.3 (f) COMPUTED 2 0 <br> <p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10TDL370615(NAD 83) <br>MARKER: N = NAIL <br>SETTING: 30 = SET IN A LIGHT STRUCTURE <br>SP_SET: TREE <br>STAMPING: USGS BM 513 1942 <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>1942 </td><td>MONUMENTED </td><td>USGS</td></tr><tr><td>1942 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1942 </td><td>MARK NOT FOUND </td><td>NGS</td></tr><tr><td>19740709</td><td>MARK NOT FOUND </td><td>USPSQD</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1942 2.6 MI W FROM WEITCHPEC. 2.6 MILES WEST ALONG THE ORICK ROAD FROM WEITCHPEC, HUMBOLDT COUNTY, 7 FEET SOUTH OF THE CENTERLINE OF THE ROAD, IN A NOTCH AT THE NORTH SIDE OF A 30-INCH OAK TREE, AND ABOUT ONE FOOT HIGHER THAN THE ROAD. A UNITED STATES GEOLOGICAL SURVEY STANDARD COPPER NAIL AND WASHER, STAMPED USGS BM. <p> <h2>STATION RECOVERY (1942) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1942 MARK NOT FOUND. <p> <h2>STATION RECOVERY (1974) </h2> <p>RECOVERY NOTE BY US POWER SQUADRON 1974 (WFM) MARK NOT FOUND. LV0285 60 http://www.geocaching.com/mark/details.asp?PID=LV0285 60 Geocache Geocache 60 CA1220 CA1220 Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>60</h1> <b> PID </b> LV0285 <br> <b> STATE/COUNTY</b> CA/HUMBOLDT <br> <b> USGS QUAD </b> EUREKA (1972) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 40 48 16. (N) 124 08 52. (W) SCALED <br> <b> NAVD 88 </b> 6.641 (meters) 21.79 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -30.44 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 6.638 (meters) 21.78 (feet) COMP <br> <b> MODELED GRAV</b> 980,206.4 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS II <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991. <p>The geoid height was determined by GEOID03. <p>The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.). <p>The modeled gravity was interpolated from observed gravity values. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 1 </td><td> 665,570. </td><td> 1,818,800. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2> <p> NGVD 29 (12/02/92) 5.630 (m) 18.47 (f) ADJUSTED 1 2 <br> <p>Superseded values are not recommended for survey control. NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. See file dsdata.txt to determine how the superseded data were derived. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10TDL031176(NAD 83) <br>MARKER: B = BOLT <br>SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT <br>SP_SET: CONCRETE POST <br>MARK LOGO: CA1220 <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>CA1220</td></tr><tr><td>19511101</td><td>MARK NOT FOUND </td><td>USPSQD</td></tr><tr><td>1967 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1971 </td><td>GOOD </td><td>NGS</td></tr><tr><td>19880221</td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY US POWER SQUADRON 1951 (WBJ) MARK NOT FOUND. <p> <h2>STATION RECOVERY (1967) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1967 AT EUREKA. AT EUREKA, IN THE CENTER OF THE INTERSECTION OF 4TH STREET (U.S. HIGHWAY 101) AND W STREET, AND IN THE TOP OF A CONCRETE POST ABOUT 1/2 FOOT UNDER GROUND. ACCESS TO THE MARK IS THRU THE REMOVAL OF A MAN HOLE COVER. <p> <h2>STATION RECOVERY (1971) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1971 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1988) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 RECOVERED IN GOOD CONDITION. LV0283 63 http://www.geocaching.com/mark/details.asp?PID=LV0283 63 Geocache Geocache 63 CA1220 CA1220 Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>63</h1> <b> PID </b> LV0283 <br> <b> STATE/COUNTY</b> CA/HUMBOLDT <br> <b> USGS QUAD </b> EUREKA (1972) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 40 48 16. (N) 124 09 16. (W) SCALED <br> <b> NAVD 88 </b> 12.026 (meters) 39.46 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -30.46 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 12.021 (meters) 39.44 (feet) COMP <br> <b> MODELED GRAV</b> 980,206.8 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS II <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991. <p>The geoid height was determined by GEOID03. <p>The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.). <p>The modeled gravity was interpolated from observed gravity values. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 1 </td><td> 665,580. </td><td> 1,818,240. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2> <p> NGVD 29 (12/02/92) 11.015 (m) 36.14 (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: 10TDL026176(NAD 83) <br>MARKER: B = BOLT <br>SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT <br>SP_SET: SQUARE CONCRETE MONUMENT <br>MARK LOGO: CA1220 <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>CA1220</td></tr><tr><td>1967 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1971 </td><td>GOOD </td><td>NGS</td></tr><tr><td>19880221</td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1967 AT EUREKA. AT EUREKA, IN THE CENTER OF THE INTERSECTION OF 4TH STREET (U.S. HIGHWAY 101) AND Q STREET, AND IN THE TOP OF A CONCRETE POST ABOUT 1/2 FOOT UNDER GROUND. ACCESS TO THE MARK IS THRU THE REMOVAL OF A MAN HOLE COVER. <p> <h2>STATION RECOVERY (1971) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1971 RECOVERED IN GOOD CONDITION. <p> <h2>STATION RECOVERY (1988) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 RECOVERED IN GOOD CONDITION. LU1513 646 B http://www.geocaching.com/mark/details.asp?PID=LU1513 646 B Geocache Geocache 646 B USGS Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>646 B</h1> <b> PID </b> LU1513 <br> <b> STATE/COUNTY</b> CA/HUMBOLDT <br> <b> USGS QUAD </b> SALYER (1979) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 40 55 07. (N) 123 37 15. (W) SCALED <br> <b> NAVD 88 </b> 197.787 (meters) 648.91 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -27.86 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 197.687 (meters) 648.58 (feet) COMP <br> <b> MODELED GRAV</b> 980,117.9 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS II <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991. <p>The geoid height was determined by GEOID03. <p>The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.). <p>The modeled gravity was interpolated from observed gravity values. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 1 </td><td> 677,290. </td><td> 1,863,490. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2> <p> NGVD 29 (??/??/92) 196.756 (m) 645.52 (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: 10TDL477299(NAD 83) <br>MARKER: DD = SURVEY DISK <br>SETTING: 80 = SET IN A BOULDER <br>STAMPING: 645.064 B 1906 <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>1906 </td><td>MONUMENTED </td><td>USGS</td></tr><tr><td>1935 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1988 </td><td>MARK NOT FOUND </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1935 1.5 MI SE FROM WILLOW CREEK. 1.5 MILES SOUTHEAST ALONG U.S. HIGHWAY 299 FROM WILLOW CREEK, HUMBOLDT COUNTY, AT CHINA FLAT, 600 FEET EAST OF GAMBLES AUTO CAMP IN 1931, 300 FEET SOUTH OF THE NEW HIGHWAY, AND IN THE TOP OF A LARGE BOULDER. A UNITED STATES GEOLOGICAL SURVEY STANDARD DISK, STAMPED 645.064 B 1906. <p> <h2>STATION RECOVERY (1988) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 MARK NOT FOUND. LU1520 656.07 USBPR http://www.geocaching.com/mark/details.asp?PID=LU1520 656.07 USBPR Geocache Geocache 656.07 USBPR BPR Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>656.07 USBPR</h1> <b> PID </b> LU1520 <br> <b> STATE/COUNTY</b> CA/HUMBOLDT <br> <b> USGS QUAD </b> WILLOW CREEK (1979) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 40 59 41. (N) 123 37 46. (W) SCALED <br> <b> NAVD 88 </b> 187.136 (meters) 613.96 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -27.81 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 187.042 (meters) 613.65 (feet) COMP <br> <b> MODELED GRAV</b> 980,116.5 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> SECOND CLASS 0 <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 1 </td><td> 685,750. </td><td> 1,862,920. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2> <p> NGVD 29 (??/??/92) 186.104 (m) 610.58 (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: 10TDL470383(NAD 83) <br>MARKER: N = NAIL <br>SETTING: 30 = SET IN A LIGHT STRUCTURE <br>SP_SET: TREE <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>BPR</td></tr><tr><td>1931 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1935 </td><td>MARK NOT FOUND </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1931 4 MI N FROM WILLOW CREEK. 4.0 MILES NORTH ALONG STATE HIGHWAY 96 FROM WILLOW CREEK, HUMBOLDT COUNTY, AT HIGHWAY STATION 280+50 ON THE OLD ROUTE OF THE HIGHWAY, AND 20 FEET NORTH OF THE CENTERLINE OF THE OLD HIGHWAY. A NAIL IN A 6-INCH FIR TREE. <p> <h2>STATION RECOVERY (1935) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1935 MARK NOT FOUND. LV0278 68 http://www.geocaching.com/mark/details.asp?PID=LV0278 68 Geocache Geocache 68 CA1220 Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>68</h1> <b> PID </b> LV0278 <br> <b> STATE/COUNTY</b> CA/HUMBOLDT <br> <b> USGS QUAD </b> EUREKA (1972) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 40 48 05. (N) 124 10 29. (W) SCALED <br> <b> NAVD 88 </b> 3.01 (+/-2cm) 9.9 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -30.55 (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 1 </td><td> 665,290. </td><td> 1,816,520. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2> <p> NGVD 29 (??/??/??) 1.994 (m) 6.54 (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: 10TDL009173(NAD 83) <br>MARKER: B = BOLT <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</