Benchmark file generated by bmgpx bmgpx by Ron Parker bmgpx@parkrrrr.com LU0909 1003 B USGS http://www.geocaching.com/mark/details.asp?PID=LU0909 1003 B USGS Geocache Geocache 1003 B USGS USGS Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>1003 B USGS</h1> <b> PID </b> LU0909 <br> <b> STATE/COUNTY</b> CA/TRINITY <br> <b> USGS QUAD </b> IRONSIDE MTN (1982) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 40 47 03. (N) 123 25 06. (W) SCALED <br> <b> NAVD 88 </b> 306.60 (+/-2cm) 1005.9 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -27.30 (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The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the NGVD 29 superseded value.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> 662,070. </td><td> 1,880,300. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2> <p> NGVD 29 (??/??/92) 305.634 (m) 1002.73 (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Superseded values are not recommended for survey control.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 See file dsdata.txt to determine how the superseded data were derived.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: 10TDL647148(NAD 83) <br>MARKER: DD = SURVEY DISK <br>SETTING: 80 = SET IN A BOULDER <br>SP_SET: BOULDER <br>STAMPING: 1003 B 1905 <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>1905 </td><td>MONUMENTED </td><td>USGS</td></tr><tr><td>1935 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1935 </td><td>MARK NOT FOUND </td><td>USGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1935 3.4 MI SE FROM BURNT RANCH. 3.4 MILES SOUTHEAST ALONG U.S. HIGHWAY 299 FROM BURNT RANCH, TRINITY COUNTY, AT DON JUAN POINT, 675 FEET WEST OF A SUSPENSION BRIDGE OVER TRINITY RIVER, ON THE WEST SIDE OF THE RIVER, AND IN THE TOP OF A LARGE BOULDER. A UNITED STATES GEOLOGICAL SURVEY STANDARD DISK, STAMPED 1003 B 1905. <p> <h2>STATION RECOVERY (1935) </h2> <p>RECOVERY NOTE BY US GEOLOGICAL SURVEY 1935 MARK NOT FOUND. LU0912 1183 B USGS http://www.geocaching.com/mark/details.asp?PID=LU0912 1183 B USGS Geocache Geocache 1183 B USGS USGS Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>1183 B USGS</h1> <b> PID </b> LU0912 <br> <b> STATE/COUNTY</b> CA/TRINITY <br> <b> USGS QUAD </b> IRONSIDE MTN (1982) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 40 47 46. (N) 123 22 45. (W) SCALED <br> <b> NAVD 88 </b> 364.88 (+/-2cm) 1197.1 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -27.12 (meters) GEOID03 <br> <p> <b> VERT ORDER </b> FIRST CLASS II (See Below) <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the NGVD 29 superseded value. <p>The geoid height was determined by GEOID03. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 1 </td><td> 663,340. </td><td> 1,883,620. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2> <p> NGVD 29 (??/??/92) 363.934 (m) 1194.01 (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: 10TDL680161(NAD 83) <br>MARKER: DD = SURVEY DISK <br>SETTING: 80 = SET IN A BOULDER <br>SP_SET: BOULDER <br>STAMPING: 1183 B 1905 <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>1905 </td><td>MONUMENTED </td><td>USGS</td></tr><tr><td>1935 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1935 </td><td>MARK NOT FOUND </td><td>USGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1935 6.4 MI SE FROM BURNT RANCH. 6.4 MILES SOUTHEAST ALONG U.S. HIGHWAY 299 FROM BURNT RANCH, TRINITY COUNTY, 625 FEET EAST OF VANCE GULCH, AND IN THE TOP OF A LARGE BOULDER. A UNITED STATES GEOLOGICAL SURVEY STANDARD DISK, STAMPED 1183 B 1905. <p> <h2>STATION RECOVERY (1935) </h2> <p>RECOVERY NOTE BY US GEOLOGICAL SURVEY 1935 MARK NOT FOUND. LU0915 1229 B USGS http://www.geocaching.com/mark/details.asp?PID=LU0915 1229 B USGS Geocache Geocache 1229 B USGS USGS Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>1229 B USGS</h1> <b> PID </b> LU0915 <br> <b> STATE/COUNTY</b> CA/TRINITY <br> <b> USGS QUAD </b> DEL LOMA (1982) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 40 46 46. (N) 123 18 42. (W) SCALED <br> <b> NAVD 88 </b> 378.64 (+/-2cm) 1242.3 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -26.97 (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> 661,400. </td><td> 1,889,290. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2> <p> NGVD 29 (??/??/92) 377.724 (m) 1239.25 (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: 10TDL737143(NAD 83) <br>MARKER: DD = SURVEY DISK <br>SETTING: 80 = SET IN A BOULDER <br>SP_SET: BOULDER <br>STAMPING: 1229 B 1905 <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>1905 </td><td>MONUMENTED </td><td>USGS</td></tr><tr><td>1935 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1935 </td><td>MARK NOT FOUND </td><td>USGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1935 1.3 MI SE FROM DEL LOMA. 1.3 MILES SOUTHEAST ALONG U.S. HIGHWAY 299 FROM THE POST OFFICE AT DEL LOMA, TRINITY COUNTY, 850 FEET EAST OF A HIGH CLIFF, ABOUT 65 FEET ABOVE THE HIGHWAY, AND IN THE TOP OF A LARGE BOULDER. A UNITED STATES GEOLOGICAL SURVEY STANDARD DISK, STAMPED 1229 B 1905. <p> <h2>STATION RECOVERY (1935) </h2> <p>RECOVERY NOTE BY US GEOLOGICAL SURVEY 1935 MARK NOT FOUND. LU0923 1315 USGS http://www.geocaching.com/mark/details.asp?PID=LU0923 1315 USGS Geocache Geocache 1315 USGS USGS Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>1315 USGS</h1> <b> PID </b> LU0923 <br> <b> STATE/COUNTY</b> CA/TRINITY <br> <b> USGS QUAD </b> HAYFORK BALLY (1982) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 40 44 26. (N) 123 12 22. (W) SCALED <br> <b> NAVD 88 </b> 401.52 (+/-2cm) 1317.3 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -26.81 (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> 656,960. </td><td> 1,898,140. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2> <p> NGVD 29 (??/??/92) 400.626 (m) 1314.39 (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: 10TDL825099(NAD 83) <br>MARKER: DD = SURVEY DISK <br>SETTING: 66 = SET IN ROCK OUTCROP <br>SP_SET: ROCK OUTCROP <br>STAMPING: 1313.977 B 1905 <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>1905 </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 2.7 MI E FROM BIG BAR. 2.7 MILES EAST ALONG U.S. HIGHWAY 299 FROM THE POST OFFICE AT BIG BAR, TRINITY COUNTY, NEAR BIG FLAT CAMPGROUND, 34 FEET NORTH OF THE CENTERLINE OF THE HIGHWAY, AND IN THE TOP OF A ROCK OUTCROP. A UNITED STATES GEOLOGICAL SURVEY STANDARD DISK, STAMPED 1313.977 B 1905. LU0929 1405 B http://www.geocaching.com/mark/details.asp?PID=LU0929 1405 B Geocache Geocache 1405 B USGS USGS Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>1405 B</h1> <b> PID </b> LU0929 <br> <b> STATE/COUNTY</b> CA/TRINITY <br> <b> USGS QUAD </b> HELENA (1982) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 40 46 23. (N) 123 07 42. (W) SCALED <br> <b> NAVD 88 </b> 428.963 (meters) 1407.36 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -26.51 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 428.720 (meters) 1406.56 (feet) COMP <br> <b> MODELED GRAV</b> 980,045.3 (mgal) NAVD 88 <br> <p> <b> VERT ORDER </b> FIRST CLASS II <br> <p>The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds. <p>The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991. <p>The geoid height was determined by GEOID03. <p>The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.). <p>The modeled gravity was interpolated from observed gravity values. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td> Units</td><td> Estimated Accuracy</td></tr><tr><td>SPC CA 1 </td><td> 660,480. </td><td> 1,904,760. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2> <p> NGVD 29 (12/02/92) 428.085 (m) 1404.48 (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: 10TDL891135(NAD 83) <br>MARKER: DD = SURVEY DISK <br>SETTING: 35 = SET IN A MAT FOUNDATION OR CONCRETE SLAB OTHER THAN <br>WITH SETTING: PAVEMENT <br>SP_SET: CONCRETE PLATFORM <br>STAMPING: 1404.072 B 1905 <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>1905 </td><td>MONUMENTED </td><td>USGS</td></tr><tr><td>1935 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1988 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1935 AT HELENA. AT HELENA, TRINITY COUNTY, AT THE POST OFFICE, 40 INCHES EAST OF THE SOUTHWEST CORNER OF THE BRICK BUILDING, AND IN THE CONCRETE PLATFORM IN FRONT OF THE BUILDING. A UNITED STATES GEOLOGICAL SURVEY STANDARD DISK, STAMPED 1404.072 B 1905. <p> <h2>STATION RECOVERY (1988) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 RECOVERED IN GOOD CONDITION. A NEW DESCRIPTION FOLLOWS. 14.7 KM (9.15 MI) EASTERLY ALONG STATE HIGHWAY 299 FROM THE POST OFFICE IN BIG BAR, THENCE 0.4 KM (0.25 MI) NORTHERLY ALONG EAST FORK ROAD, IN THE SOUTH CORNER OF A CONCRETE PLATFORM IN FRONT OF AN ABANDONED BUILDING, 7.7 M (25.3 FT) NORTHEAST OF THE CENTERLINE OF THE ROAD, AND 1.0 M (3.3 FT) SOUTHEAST OF THE SOUTH CORNER OF THE BUILDING. NOTE--THE DISK IS RECESSED 2-INCHES IN THE PLATFORM. THE ORIGINAL DESCRIPTION STATES THE DISK IS STAMPED 1404.072 B 1905, BUT IS STAMPED AS ABOVE. THE MARK IS 0.5 M ABOVE THE ROAD. LU0934 1492 USGS http://www.geocaching.com/mark/details.asp?PID=LU0934 1492 USGS Geocache Geocache 1492 USGS USGS Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>1492 USGS</h1> <b> PID </b> LU0934 <br> <b> STATE/COUNTY</b> CA/TRINITY <br> <b> USGS QUAD </b> JUNCTION CITY (1982) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 40 43 37. (N) 123 03 17. (W) SCALED <br> <b> NAVD 88 </b> 455.666 (meters) 1494.96 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -26.59 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 455.405 (meters) 1494.11 (feet) COMP <br> <b> MODELED GRAV</b> 980,038.9 (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> 655,280. </td><td> 1,910,910. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2> <p> NGVD 29 (??/??/92) 454.784 (m) 1492.07 (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: 10TDL953084(NAD 83) <br>MARKER: DD = SURVEY DISK <br>SETTING: 80 = SET IN A BOULDER <br>SP_SET: BOULDER <br>STAMPING: 1491.680 B 1905 <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>1905 </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 0.3 MI SE FROM JUNCTION CITY. 0.3 MILE SOUTHEAST ALONG U.S. HIGHWAY 299 FROM JUNCTION CITY, TRINITY COUNTY, BETWEEN THE NEW HIGHWAY AND THE OLD HIGHWAY NOW A COUNTY ROAD, 80 FEET SOUTHWEST OF THE CENTERLINE OF THE COUNTY ROAD, 73 FEET NORTHEAST OF THE CENTERLINE OF THE NEW HIGHWAY, NEAR A BRIDGE, AND IN THE TOP OF A YELLOWISH-WHITE BOULDER. A UNITED STATES GEOLOGICAL SURVEY STANDARD DISK, STAMPED 1491.680 B 1905. NOTE-- THIS BENCH MARK WAS DESIGNATED 1483 (U.S.G.S.) IN THE ORIGINAL LIST. LU0926 1651 USGS http://www.geocaching.com/mark/details.asp?PID=LU0926 1651 USGS Geocache Geocache 1651 USGS USGS Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>1651 USGS</h1> <b> PID </b> LU0926 <br> <b> STATE/COUNTY</b> CA/TRINITY <br> <b> USGS QUAD </b> HELENA (1982) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 40 45 14. (N) 123 09 56. (W) SCALED <br> <b> NAVD 88 </b> 504.02 (+/-2cm) 1653.6 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -26.65 (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> 658,390. </td><td> 1,901,590. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2> <p> NGVD 29 (??/??/92) 503.126 (m) 1650.67 (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: 10TDL860114(NAD 83) <br>MARKER: DD = SURVEY DISK <br>SETTING: 80 = SET IN A BOULDER <br>SP_SET: BOULDER <br>STAMPING: 1650.266 B 1905 <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>1905 </td><td>MONUMENTED </td><td>USGS</td></tr><tr><td>1935 </td><td>GOOD </td><td>NGS</td></tr><tr><td>1976 </td><td>MARK NOT FOUND </td><td>USGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1935 3.4 MI SW FROM HELENA. 3.4 MILES SOUTHWEST ALONG U.S. HIGHWAY 299 FROM THE POST OFFICE AT HELENA, TRINITY COUNTY, AT CUTTHROAT GULCH, 0.2 MILE UP THE GULCH FROM THE HIGHWAY, ON THE EAST SIDE OF A BROOK, ON THE SOUTH SIDE OF A TRAIL, AND IN THE TOP OF A LARGE BOULDER. A UNITED STATES GEOLOGICAL SURVEY STANDARD DISK, STAMPED 1650.266 B 1905. <p> <h2>STATION RECOVERY (1976) </h2> <p>RECOVERY NOTE BY US GEOLOGICAL SURVEY 1976 MARK NOT FOUND. LU0856 1664 USGS http://www.geocaching.com/mark/details.asp?PID=LU0856 1664 USGS Geocache Geocache 1664 USGS USGS Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>1664 USGS</h1> <b> PID </b> LU0856 <br> <b> STATE/COUNTY</b> CA/TRINITY <br> <b> USGS QUAD </b> WEAVERVILLE (1982) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 40 39 09. (N) 122 56 34. (W) SCALED <br> <b> NAVD 88 </b> 508.074 (meters) 1666.91 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -26.82 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 507.774 (meters) 1665.92 (feet) COMP <br> <b> MODELED GRAV</b> 980,020.2 (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> 646,910. </td><td> 1,920,270. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2> <p> NGVD 29 (??/??/92) 507.186 (m) 1663.99 (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: 10TEL048001(NAD 83) <br>MARKER: N = NAIL <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>USGS</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 1935 AT DOUGLAS CITY. AT DOUGLAS CITY, TRINITY COUNTY, ON U.S. HIGHWAY 299, OPPOSITE THE POST OFFICE, 40 FEET SOUTHEAST OF THE CENTERLINE OF THE HIGHWAY, AND IN THE TOP OF A LARGE BOULDER. A UNITED STATES GEOLOGICAL SURVEY STANDARD COPPER NAIL AND WASHER. MX0232 17 C USGS http://www.geocaching.com/mark/details.asp?PID=MX0232 17 C USGS Geocache Geocache 17 C USGS USGS Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>17 C USGS</h1> <b> PID </b> MX0232 <br> <b> STATE/COUNTY</b> CA/TRINITY <br> <b> USGS QUAD </b> SCOTT MOUNTAIN (1986) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 41 15 23. (N) 122 40 25. (W) SCALED <br> <b> NAVD 88 </b> 1417.978 (meters) 4652.15 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -23.54 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 1417.005 (meters) 4648.96 (feet) COMP <br> <b> MODELED GRAV</b> 979,887.2 (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> 713,750. </td><td> 1,943,550. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2> <p> NGVD 29 (??/??/??) 1416.931 (m) 4648.71 (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: 10TEL273672(NAD 83) <br>MARKER: DB = BENCH MARK DISK <br>SETTING: 30 = SET IN A LIGHT STRUCTURE <br>SP_SET: BOULDER <br>STAMPING: 17 C 1931 <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>1931 </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 16.6 MI N FROM CARRVILLE. 16.6 MILES NORTH ALONG THE WEAVERVILLE-CALLAHAN ROAD FROM CARRVILLE, TRINITY COUNTY, 40 YARDS NORTH OF A SHARP HAIRPIN TURN IN THE ROAD, AT THE TOP OF A CANYON TRAVERSED BY A CREEK, AT A VERY LARGE ROCK OUTCROP, IN THE TOP OF ONE OF A SERIES OF BOULDERS, HIGH ABOVE THE CREEKBED AND THE BOTTOM OF THE CANYON, AND ABOUT 40 FEET ABOVE THE LEVEL OF THE ROAD. A UNITED STATES GEOLOGICAL SURVEY STANDARD DISK, STAMPED 17 C 1931. MX0228 18 C USGS http://www.geocaching.com/mark/details.asp?PID=MX0228 18 C USGS Geocache Geocache 18 C USGS USGS Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>18 C USGS</h1> <b> PID </b> MX0228 <br> <b> STATE/COUNTY</b> CA/TRINITY <br> <b> USGS QUAD </b> TANGLE BLUE LAKE (1986) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 41 14 04. (N) 122 38 58. (W) SCALED <br> <b> NAVD 88 </b> 1005.608 (meters) 3299.23 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -23.59 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 1004.974 (meters) 3297.15 (feet) COMP <br> <b> MODELED GRAV</b> 979,959.1 (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> 711,300. </td><td> 1,945,560. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2> <p> NGVD 29 (??/??/??) 1004.610 (m) 3295.96 (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: 10TEL293648(NAD 83) <br>MARKER: DB = BENCH MARK DISK <br>SETTING: 80 = SET IN A BOULDER <br>SP_SET: BOULDER <br>STAMPING: 18 C 1931 <br>STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO <br>STABILITY: SURFACE MOTION <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1931 </td><td>MONUMENTED </td><td>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 13.5 MI N FROM CARRVILLE. 13.5 MILES NORTH ALONG THE WEAVERVILLE-CALLAHAN ROAD FROM CARRVILLE, TRINITY COUNTY, IN A SMALL CAMP-GROUND, 23 PACES NORTHEAST OF THE BANK OF A CREEK, 22 PACES NORTHEAST OF THE BANK OF A CREEK, 22 PACES SOUTHWEST OF THE CENTERLINE OF THE ROAD, IN THE TOP OF A LARGE BOULDER, AND ABOUT 10 FEET BELOW THE LEVEL OF THE ROAD. A UNITED STATES GEOLOGICAL SURVEY STANDARD DISK, STAMPED 18 C 1931. LU0852 1830 B http://www.geocaching.com/mark/details.asp?PID=LU0852 1830 B Geocache Geocache 1830 B USGS Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>1830 B</h1> <b> PID </b> LU0852 <br> <b> STATE/COUNTY</b> CA/TRINITY <br> <b> USGS QUAD </b> WEAVERVILLE (1982) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 40 41 47. (N) 122 55 43. (W) SCALED <br> <b> NAVD 88 </b> 558.47 (+/-2cm) 1832.2 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -26.64 (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> 651,770. </td><td> 1,921,520. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2> <p> NGVD 29 (??/??/92) 557.585 (m) 1829.34 (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: 10TEL060050(NAD 83) <br>MARKER: DD = SURVEY DISK <br>SETTING: 80 = SET IN A BOULDER <br>SP_SET: BOULDER <br>STAMPING: 1828.966 B 1905 <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>1905 </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 2.3 MI S FROM WEAVERVILLE. 2.3 MILES SOUTH ALONG U.S. HIGHWAY 299 FROM WEAVERVILLE, TRINITY COUNTY, NEAR THE CONFLUENCE OF WEAVER CREEK AND LITTLE BROWNS CREEK, 365 FEET NORTH OF THE JUNCTION OF A ROAD LEADING TO LOWDEN, 22 FEET EAST OF THE CENTERLINE OF THE HIGHWAY, AND IN THE TOP OF A LARGE BOULDER. A UNITED STATES GEOLOGICAL SURVEY STANDARD DISK, STAMPED 1828.966 B 1905. <p> <h2>STATION RECOVERY (1988) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 MARK NOT FOUND. MX0224 19 C USGS http://www.geocaching.com/mark/details.asp?PID=MX0224 19 C USGS Geocache Geocache 19 C USGS USGS Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>19 C USGS</h1> <b> PID </b> MX0224 <br> <b> STATE/COUNTY</b> CA/TRINITY <br> <b> USGS QUAD </b> TANGLE BLUE LAKE (1986) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 41 11 43. (N) 122 39 01. (W) SCALED <br> <b> NAVD 88 </b> 923.649 (meters) 3030.34 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -23.76 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 923.070 (meters) 3028.44 (feet) COMP <br> <b> MODELED GRAV</b> 979,965.7 (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> 706,950. </td><td> 1,945,460. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2> <p> NGVD 29 (??/??/??) 922.660 (m) 3027.09 (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: 10TEL293604(NAD 83) <br>MARKER: DB = BENCH MARK DISK <br>SETTING: 80 = SET IN A BOULDER <br>SP_SET: BOULDER <br>STAMPING: 19 C 1931 <br>STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO <br>STABILITY: SURFACE MOTION <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1931 </td><td>MONUMENTED </td><td>USGS</td></tr><tr><td>1935 </td><td>GOOD </td><td>NGS</td></tr><tr><td>19831012</td><td>GOOD </td><td>USPSQD</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1935 10.4 MI N FROM CARRVILLE. 10.4 MILES NORTH ALONG THE WEAVERVILLE-CALLAHAN ROAD FROM CARRVILLE, TRINITY COUNTY, 2.5 MILES SOUTH OF TRUMBLE RANCH, 160 FEET NORTH OF A WOODEN BRIDGE OVER A CREEK, 35 FEET EAST OF THE CENTERLINE OF THE ROAD, AND IN THE TOP OF A GRANITE BOULDER. A UNITED STATES GEOLOGICAL SURVEY STANDARD DISK, STAMPED 19 C 1931. <p> <h2>STATION RECOVERY (1983) </h2> <p>RECOVERY NOTE BY US POWER SQUADRON 1983 (DPB) RECOVERED IN GOOD CONDITION. MX0221 20 C USGS http://www.geocaching.com/mark/details.asp?PID=MX0221 20 C USGS Geocache Geocache 20 C USGS USGS Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>20 C USGS</h1> <b> PID </b> MX0221 <br> <b> STATE/COUNTY</b> CA/TRINITY <br> <b> USGS QUAD </b> TANGLE BLUE LAKE (1986) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 41 09 10. (N) 122 40 11. (W) SCALED <br> <b> NAVD 88 </b> 850.726 (meters) 2791.09 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -24.00 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 850.198 (meters) 2789.36 (feet) COMP <br> <b> MODELED GRAV</b> 979,975.3 (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> 702,240. </td><td> 1,943,790. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2> <p> NGVD 29 (??/??/??) 849.746 (m) 2787.88 (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: 10TEL277557(NAD 83) <br>MARKER: DB = BENCH MARK DISK <br>SETTING: 80 = SET IN A BOULDER <br>STAMPING: 20 C 1931 <br>STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO <br>STABILITY: SURFACE MOTION <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1931 </td><td>MONUMENTED </td><td>USGS</td></tr><tr><td>1952 </td><td>GOOD </td><td>NGS</td></tr><tr><td>19831012</td><td>GOOD </td><td>USPSQD</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1952 7.6 MI N FROM CARRVILLE. 7.65 MILES NORTH ALONG THE CARRVILLE-CALLAHAN ROAD FROM THE CARRVILLE RANCH INN AT CARRVILLE, 0.1 MILE NORTH OF A POLE BRIDGE OVER EAGLE CREEK, AT THE SOUTH JUNCTION OF A ROAD LEADING WEST TO EAGLE PEAK, IN THE TOP OF A 7-BY-5 FOOT BOULDER, 25.0 FEET EAST OF THE CENTER LINE OF THE ROAD, AND ABOUT 8.0 FEET HIGHER THAN THE SURFACE OF THE ROAD. <p> <h2>STATION RECOVERY (1983) </h2> <p>RECOVERY NOTE BY US POWER SQUADRON 1983 (DPB) RECOVERED IN GOOD CONDITION. MX0218 21 C USGS http://www.geocaching.com/mark/details.asp?PID=MX0218 21 C USGS Geocache Geocache 21 C USGS USGS Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>21 C USGS</h1> <b> PID </b> MX0218 <br> <b> STATE/COUNTY</b> CA/TRINITY <br> <b> USGS QUAD </b> CARRVILLE (1986) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 41 06 51. (N) 122 42 22. (W) SCALED <br> <b> NAVD 88 </b> 788.086 (meters) 2585.58 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -24.23 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 787.600 (meters) 2583.98 (feet) COMP <br> <b> MODELED GRAV</b> 979,982.6 (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> 697,980. </td><td> 1,940,700. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2> <p> NGVD 29 (??/??/??) 787.119 (m) 2582.41 (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: 10TEL246514(NAD 83) <br>MARKER: DB = BENCH MARK DISK <br>SETTING: 66 = SET IN ROCK OUTCROP <br>SP_SET: ROCK OUTCROP <br>STAMPING: 21 C 1931 <br>STABILITY: A = MOST RELIABLE AND EXPECTED TO HOLD <br>STABILITY: POSITION/ELEVATION WELL <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1931 </td><td>MONUMENTED </td><td>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 N FROM CARRVILLE. 3.6 MILES NORTH ALONG THE WEAVERVILLE-CALLAHAN ROAD FROM CARRVILLE, TRINITY COUNTY, 70 FEET WEST OF THE CENTERLINE OF THE ROAD, IN THE TOP OF A LARGE ROCK OUTCROP, AND ABOUT 25 FEET ABOVE THE LEVEL OF THE ROAD. A UNITED STATES GEOLOGICAL SURVEY STANDARD DISK, STAMPED 21 C 1931. DF5240 224 416 S2 http://www.geocaching.com/mark/details.asp?PID=DF5240 224 416 S2 Geocache Geocache 224 416 S2 BOR BOR Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>224 416 S2</h1> <b> PID </b> DF5240 <br> <b> STATE/COUNTY</b> CA/TRINITY <br> <b> USGS QUAD </b> CARRVILLE (1986) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1992)</b> 41 03 10.60390(N) 122 41 51.25343(W) ADJUSTED <br> <b> NAVD 88 </b> 732.8 (meters) 2404. (feet) GPS OBS <br> <hr> <b> EPOCH DATE </b> 1991.35 <br> <b> X </b> -2,602,309.174 (meters) COMP <br> <b> Y </b> -4,053,891.239 (meters) COMP <br> <b> Z </b> 4,167,324.126 (meters) COMP <br> <b> LAPLACE CORR</b> -1.52 (seconds) DEFLEC99 <br> <b> ELLIP HEIGHT</b> 708.24 (meters) (04/09/03) GPS OBS <br> <b> GEOID HEIGHT</b> -24.57 (meters) GEOID03 <br> <p> <b> HORZ ORDER </b> FIRST <br> <b> ELLP ORDER </b> FOURTH CLASS I <br> <p>The horizontal coordinates were established by GPS observations and adjusted by the National Geodetic Survey in April 2003. The horizontal coordinates are valid at the epoch date displayed above. The epoch date for horizontal control is a decimal equivalence of Year/Month/Day. <p>The orthometric height was determined by GPS observations and a high-resolution geoid model. <p>The X, Y, and Z were computed from the position and the ellipsoidal ht. <p>The Laplace correction was computed from DEFLEC99 derived deflections. <p>The ellipsoidal height was determined by GPS observations and is referenced to NAD 83. <p>The geoid height was determined by GEOID03. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td>Units</td><td>Scale Fact</td><td>r Converg.</td></tr><tr><td>SPC CA 1 </td><td> 691,175.176 1</td><td>941,363.151</td><td> MT </td><td>0.99990184</td><td> -0 ' 27 22.1"</td></tr><tr><td>SPC CA 1 </td><td>2,267,630.56 6</td><td>369,288.94 </td><td> sFT </td><td>0.99990184</td><td> -0 ' 27 22.1"</td></tr><tr><td>UTM 10 </td><td>4,544,678.596 </td><td>525,414.445</td><td> MT </td><td>0.99960795</td><td> +0 ' 11 55.0"</td></tr> </table> <p> <b> </b> Elev Factor x Scale Factor = Combined Factor <br> <b>SPC CA 1 </b> 0.99988892 x 0.99990184 = 0.99979077 <br> <b>UTM 10 </b> 0.99988892 x 0.99960795 = 0.99949691 <br> <p> <h2>Superseded Survey Control</h2> <p>No superseded survey control is available for this station. <p> <h2>Marker Information</h2>U.S. NATIONAL GRID SPATIAL ADDRESS: 10TEL2541444679(NAD 83) <br>MARKER: DD = SURVEY DISK <br>SETTING: 38 = SET IN THE ABUTMENT OR PIER OF A LARGE BRIDGE <br>SP_SET: ABUTMENT <br>STAMPING: 224-416-S2 <br>MARK LOGO: BOR <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 - 1964 <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>BOR</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY US BUREAU OF RECLAMATION 1964 THE STATION IS LOCATED AT THE NORTH END OF TRINITY LAKE, ABOUT 31 MI (49.9 KM) SOUTHWEST OF WEED AND 6 MI (9.7 KM) NORTH OF TRINITY CENTER. TO REACH THE STATION FROM THE INTERSECTION OF STATE HIGHWAY 3 AND AIRPORT ROAD IN TRINITY CENTER, GO NORTH ON HIGHWAY 3 FOR 2.8 MI (4.5 KM) TO THE ENTRANCE TO THE US FOREST SERVICE NORTH SHORE VISTA POINT. CONTINUE NORTH ON HIGHWAY 3 FOR 2.3 MI (3.7 KM) TO ENRIGHT GULCH ROAD ON THE LEFT. CONTINUE NORTH ON HIGHWAY 3 FOR 0.35 MI (0.56 KM) TO EASTSIDE ROAD ON THE RIGHT. TURN RIGHT AND GO EAST ON EASTSIDE ROAD FOR 0.07 MI (0.11 KM) TO THE WEST END OF THE BRIDGE OVER THE TRINITY RIVER AND THE STATION ON THE RIGHT. THE STATION IS A SURVEY DISK EPOXIED INTO THE SIDEWALK ON THE SOUTH SIDE OF THE WEST ABUTMENT OF THE BRIDGE, 15.0 FT (4.6 M) SOUTH OF THE CENTER OF EASTSIDE ROAD, 4.4 FT (1.3 M) EAST OF A WHITE CARSONITE GUARD POST WITH AMBER REFLECTOR, 4.1 FT (1.2 M) EAST OF A YELLOW AND BLACK WARNING PADDLE, 2.0 FT (0.6 M) NORTH OF AN ORANGE CARSONITE WITNESS POST, AND 1.5 FT (0.5 M) NORTHEAST OF THE WEST END OF THE SOUTH BRIDGE RAIL. THE STATION WAS OCCUPIED AS PART OF A CALIFORNIA HPGN DENSIFICATION SURVEY. LU0818 2279 USGS http://www.geocaching.com/mark/details.asp?PID=LU0818 2279 USGS Geocache Geocache 2279 USGS USGS Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>2279 USGS</h1> <b> PID </b> LU0818 <br> <b> STATE/COUNTY</b> CA/TRINITY <br> <b> USGS QUAD </b> COVINGTON MILL (1982) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 40 52 51. (N) 122 46 01. (W) SCALED <br> <b> NAVD 88 </b> 695.387 (meters) 2281.45 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -25.44 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 694.975 (meters) 2280.10 (feet) COMP <br> <b> MODELED GRAV</b> 980,009.7 (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> 672,110. </td><td> 1,935,370. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2> <p> NGVD 29 (??/??/92) 694.473 (m) 2278.45 (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: 10TEL196255(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>1935 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1935 4.6 MI N FROM MINERSVILLE. 4.6 MILES NORTH ALONG THE WEAVERVILLE-CALLAHAN ROAD FROM MINERSVILLE, TRINITY COUNTY, DIRECTLY ACROSS THE ROAD FROM THE H. MC HENRY MAILBOX IN 1940, 8 PACES WEST OF THE ROAD, IN THE NOTCH OF A TREE, AND 8 INCHES ABOVE THE GROUND. A UNITED STATES GEOLOGICAL SURVEY STANDARD COPPER NAIL AND WASHER. MX0209 23 C USGS http://www.geocaching.com/mark/details.asp?PID=MX0209 23 C USGS Geocache Geocache 23 C USGS USGS Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>23 C USGS</h1> <b> PID </b> MX0209 <br> <b> STATE/COUNTY</b> CA/TRINITY <br> <b> USGS QUAD </b> CARRVILLE (1986) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 41 01 43. (N) 122 41 23. (W) SCALED <br> <b> NAVD 88 </b> 702.609 (meters) 2305.14 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -24.71 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 702.184 (meters) 2303.75 (feet) COMP <br> <b> MODELED GRAV</b> 979,996.1 (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> 688,470. </td><td> 1,942,000. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2> <p> NGVD 29 (??/??/??) 701.660 (m) 2302.03 (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: 10TEL260419(NAD 83) <br>MARKER: DB = BENCH MARK DISK <br>SETTING: 36 = SET IN A MASSIVE STRUCTURE <br>SP_SET: BRIDGE <br>STAMPING: 23 C 1931 <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>1931 </td><td>MONUMENTED </td><td>USGS</td></tr><tr><td>1940 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1940 1.4 MI N FROM TRINITY CENTER. 1.4 MILES NORTH ALONG THE WEAVERVILLE-CALLAHAN ROAD FROM TRINITY CENTER, TRINITY COUNTY, 21 PACES EAST OF THE ROAD, AT AN OLD BRIDGE, AND IN THE TOP OF THE SOUTHERNMOST CONCRETE PIER. A UNITED STATES GEOLOGICAL SURVEY STANDARD DISK, STAMPED 23 C 1931. NOTE-- THIS MARK IS BELOW THE HIGH-WATER ELEVATION OF TRINITY DAM RESERVOIR. AA4370 2304 RESET http://www.geocaching.com/mark/details.asp?PID=AA4370 2304 RESET Geocache Geocache 2304 RESET CADT USGS Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>2304 RESET</h1> <b> PID </b> AA4370 <br> <b> STATE/COUNTY</b> CA/TRINITY <br> <b> USGS QUAD </b> HAYFORK (1982) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 40 32 58. (N) 123 11 28. (W) SCALED <br> <b> NAVD 88 </b> 703.16 (+/-2cm) 2307.0 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -27.37 (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> 635,720. </td><td> 1,899,120. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2> <p> NGVD 29 (08/19/04) 702.24 (m) 2303.9 (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: 10TDK838887(NAD 83) <br>MARKER: DD = SURVEY DISK <br>SETTING: 37 = SET IN A MASSIVE RETAINING WALL <br>SP_SET: BRIDGE WINGWALL <br>STAMPING: 2304 USGS RESET 1978 <br>MARK LOGO: USGS <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>1978 </td><td>MONUMENTED </td><td>CADT</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY CALTRANS 1978 (DS) 0.7 MILE (1.1 KM) WEST ALONG HIGHWAY 3 FROM THE POST OFFICE IN HAYFORK AT THE LARGE CONCRETE BRIDGE, NO 5-20, OVER HAYFORK RIVER IN THE TOP OF THE WEST CONCRETE WINGWALL, 7.5 FEET (2.3 M) SOUTH OF THE SOUTH END OF THE BRIDGE, 12.7 FEET (3.9 M) WEST OF THE CENTERLINE OF THE HIGHWAY, 0.5 FEET (15.2 CM) EAST OF THE GUARDRAIL FACE, AND 0.2 FEET (6.1 CM) BELOW THE SURFACE OF THE HIGHWAY. LU0864 2383 B http://www.geocaching.com/mark/details.asp?PID=LU0864 2383 B Geocache Geocache 2383 B USGS Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>2383 B</h1> <b> PID </b> LU0864 <br> <b> STATE/COUNTY</b> CA/TRINITY <br> <b> USGS QUAD </b> LEWISTON (1982) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 40 39 45. (N) 122 48 16. (W) SCALED <br> <b> NAVD 88 </b> 727.403 (meters) 2386.49 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -26.61 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 726.947 (meters) 2384.99 (feet) COMP <br> <b> MODELED GRAV</b> 979,973.4 (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> 647,900. </td><td> 1,931,980. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2> <p> NGVD 29 (??/??/92) 726.499 (m) 2383.52 (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: 10TEL165013(NAD 83) <br>MARKER: DD = SURVEY DISK <br>SETTING: 80 = SET IN A BOULDER <br>SP_SET: BOULDER <br>STAMPING: 2383.165 B 1905 <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>1905 </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 2 MI SE FROM FAWN LODGE. 2.0 MILES SOUTHEAST ALONG U.S. HIGHWAY 299 FROM THE POST OFFICE AT FAWN LODGE, TRINITY CUNTY, AT THE NORTHWEST END OF A CONCRETE-AND-ROCK WALL, 42 FEET NORTH OF THE CENTERLINE OF THE HIGHWAY, IN THE TOP OF A LARGE BOULDER, AND ABOUT 5 FEET ABOVE THE GROUND. A UNITED STATES GEOLOGICAL SURVEY STANDARD DISK, STAMPED 2383.165 B 1905. <p> <h2>STATION RECOVERY (1988) </h2> <p>RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 THERE HAS BEEN ROAD CONSTRUCTION AT THIS LOCATION. MX0208 24 C USGS http://www.geocaching.com/mark/details.asp?PID=MX0208 24 C USGS Geocache Geocache 24 C USGS USGS Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>24 C USGS</h1> <b> PID </b> MX0208 <br> <b> STATE/COUNTY</b> CA/TRINITY <br> <b> USGS QUAD </b> CARRVILLE (1986) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 41 00 29. (N) 122 41 11. (W) SCALED <br> <b> NAVD 88 </b> 705.583 (meters) 2314.90 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -24.83 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 705.159 (meters) 2313.51 (feet) COMP <br> <b> MODELED GRAV</b> 980,000.3 (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> 686,180. </td><td> 1,942,260. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2> <p> NGVD 29 (??/??/??) 704.640 (m) 2311.81 (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: 10TEL263396(NAD 83) <br>MARKER: DB = BENCH MARK DISK <br>SETTING: 36 = SET IN A MASSIVE STRUCTURE <br>SP_SET: BUILDING <br>STAMPING: 24 C 1931 <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>1931 </td><td>MONUMENTED </td><td>USGS</td></tr><tr><td>1940 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1940 AT TRINITY CENTER. AT TRINITY CENTER, TRINITY COUNTY, ON THE WEAVERVILLE-CALLAHAN ROAD, AT THE SOUTHEAST CORNER OF THE GENERAL STORE BUILDING (TAPIES RED AND WHITE GROCERY IN 1940), IN THE WALL, 45 FEET WEST OF THE CENTERLINE OF THE ROAD, AND 2 FEET ABOVE THE BOARDWALK IN FRONT OF THE STORE. A UNITED STATES GEOLOGICAL SURVEY STANDARD DISK, STAMPED 24 C 1931 AND SET VERTICALLY. NOTE-- THIS MARK IS BELOW THE HIGH-WATER ELEVATION OF TRINITY DAM RESERVOIR. LU0958 2525 USDA http://www.geocaching.com/mark/details.asp?PID=LU0958 2525 USDA Geocache Geocache 2525 USDA USDA Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>2525 USDA</h1> <b> PID </b> LU0958 <br> <b> STATE/COUNTY</b> CA/TRINITY <br> <b> USGS QUAD </b> HAYFORK SUMMIT (1982) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 40 34 39. (N) 123 05 17. (W) SCALED <br> <b> NAVD 88 </b> 770.46 (+/-2cm) 2527.8 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -27.04 (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> 638,720. </td><td> 1,907,890. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2> <p> NGVD 29 (??/??/92) 769.525 (m) 2524.68 (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: 10TDK925918(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: 683 8013 ELEV 2524.90 <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>USDA</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 6.2 MI NE FROM HAYFORK. 6.2 MILES NORTHEAST ALONG THE OLD DOUGLAS CITY ROAD FROM HAYFORK, TRINITY COUNTY, 50 FEET EAST OF THE CENTERLINE OF THE ROAD, AND AT A FENCE LINE. A UNITED STATES DEPARTMENT OF AGRICULTURE DISK, STAMPED 683+8013 ELEV. 2524.90 AND SET IN THE TOP OF A CONCRETE POST. LU0961 2602 USDA RESET http://www.geocaching.com/mark/details.asp?PID=LU0961 2602 USDA RESET Geocache Geocache 2602 USDA RESET USDA CGS Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>2602 USDA RESET</h1> <b> PID </b> LU0961 <br> <b> STATE/COUNTY</b> CA/TRINITY <br> <b> USGS QUAD </b> HAYFORK SUMMIT (1982) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1992)</b> 40 35 01.95665(N) 123 04 22.00928(W) ADJUSTED <br> <b> NAVD 88 </b> 794.19 (meters) 2605.6 (feet) LEVELING <br> <hr> <b> EPOCH DATE </b> 1991.35 <br> <b> X </b> -2,647,408.107 (meters) COMP <br> <b> Y </b> -4,065,336.199 (meters) COMP <br> <b> Z </b> 4,127,937.074 (meters) COMP <br> <b> LAPLACE CORR</b> 4.46 (seconds) DEFLEC99 <br> <b> ELLIP HEIGHT</b> 767.20 (meters) (06/17/03) GPS OBS <br> <b> GEOID HEIGHT</b> -26.99 (meters) GEOID03 <br> <p> <b> HORZ ORDER </b> FIRST <br> <b> VERT ORDER </b> THIRD ? <br> <b> ELLP ORDER </b> FOURTH CLASS II <br> <p>The horizontal coordinates were established by GPS observations and adjusted by the National Geodetic Survey in June 2003. The horizontal coordinates are valid at the epoch date displayed above. The epoch date for horizontal control is a decimal equivalence of Year/Month/Day. <p>The orthometric height was determined by differential leveling. The vertical network tie was performed by a horz. field party for horz. obs reductions. Reset procedures were used to establish the elevation. <p>The X, Y, and Z were computed from the position and the ellipsoidal ht. <p>The Laplace correction was computed from DEFLEC99 derived deflections. <p>The ellipsoidal height was determined by GPS observations and is referenced to NAD 83. <p>The geoid height was determined by GEOID03. <p> <table border=1><tr><td> </td><td> North </td><td> East </td><td>Units</td><td>Scale Fact</td><td>r Converg.</td></tr><tr><td>SPC CA 1 </td><td> 639,412.768 1</td><td>909,187.135</td><td> MT </td><td>0.99990420</td><td> -0 ' 42 05.3"</td></tr><tr><td>SPC CA 1 </td><td>2,097,806.72 6</td><td>263,724.79 </td><td> sFT </td><td>0.99990420</td><td> -0 ' 42 05.3"</td></tr><tr><td>UTM 10 </td><td>4,492,567.661 </td><td>493,840.727</td><td> MT </td><td>0.99960047</td><td> -0 ' 02 50.5"</td></tr> </table> <p> <b> </b> Elev Factor x Scale Factor = Combined Factor <br> <b>SPC CA 1 </b> 0.99987967 x 0.99990420 = 0.99978388 <br> <b>UTM 10 </b> 0.99987967 x 0.99960047 = 0.99948018 <br> <p> <h2>Superseded Survey Control</h2> <p> NGVD 29 (??/??/??) 793.27 (m) 2602.6 (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: 10TDK9384192568(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: 2602 USDA RESET 1968 <br>MARK LOGO: CGS <br>MAGNETIC: N = NO MAGNETIC MATERIAL <br>STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO <br>STABILITY: SURFACE MOTION <br>SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR <br>SATELLITE: SATELLITE OBSERVATIONS - January 23, 2001 <br> </table> <p> <h2>History</h2><table border=1><tr><td>Date </td><td>Condition </td><td>Report By</td></tr><tr><td>1968 </td><td>MONUMENTED </td><td>USDA</td></tr><tr><td>20010123</td><td>GOOD </td><td>CADT</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY US DEPARTMENT OF AGRICULTURE 1968 6.8 MI NE FROM HAYFORK. ABOUT 6.8 MILES NORTHEAST ALONG THE DOUGLAS CITY ROAD FROM THE POST OFFICE AT HAYFORK, 262 FEET EAST OF THE CARR CREEK BRIDGE, 102 FEET NORTH OF THE CENTERLINE AT STATION 730+00, AND SET IN THE TOP OF A CONCRETE POST. <p> <h2>STATION RECOVERY (2001) </h2> <p>RECOVERY NOTE BY CALTRANS 2001 (JRL) THE STATION WAS RECOVERED. A COMPLETE NEW DESCRIPTION FOLLOWS. THE STATION IS LOCATED ON THE NORTH SIDE OF STATE HIGHWAY 3 NEAR THE BRIDGE OVER CARR CREEK, ABOUT 33 MI (53.1 KM) WEST OF REDDING, 12 MI (19.3 KM) SOUTH-SOUTHWEST OF WEAVERVILLE, AND 9 MI (14.5 KM) EAST OF HAYFORK. TO REACH THE STATION FROM THE JUNCTION OF STATE HIGHWAYS 3 AND 299 AT DOUGLAS CITY, GO SOUTH AND WEST ON HIGHWAY 3 FOR 12.3 MI (19.8 KM) TO HAYFORK SUMMIT. CONTINUE SOUTH AND WEST ON HIGHWAY 3 FOR 4.6 MI (7.4 KM) TO THE STATION ON THE RIGHT AT POST MILE 14.02, JUST BEFORE BRIDGE NO. 5-35 OVER CARR CREEK. THE STATION IS 118.5 FT (36.1 M) NORTH OF THE CENTERLINE OF THE HIGHWAY, 108.3 FT (33.0 M) NORTHEAST OF POWER POLE TCPUD 6536, 58.7 FT (17.9 M) WEST OF A FENCE CORNER IN A BARBED WIRE FENCE, 4.0 FT (1.2 M) EAST OF A WHITE CARSONITE WITNESS POST WITH AMBER REFLECTOR, 2.6 FT (0.8 M) SOUTH OF AN ORANGE CARSONITE WITNESS POST AND THE BARBED WIRE FENCE, AND ABOUT 3 FT (0.9 M) HIGHER THAN THE HIGHWAY. THE STATION WAS OCCUPIED AS PART OF A CALIFORNIA HPGN DENSIFICATION SURVEY. LU0822 2644 USGS http://www.geocaching.com/mark/details.asp?PID=LU0822 2644 USGS Geocache Geocache 2644 USGS USGS Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>2644 USGS</h1> <b> PID </b> LU0822 <br> <b> STATE/COUNTY</b> CA/TRINITY <br> <b> USGS QUAD </b> COVINGTON MILL (1982) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 40 55 35. (N) 122 45 59. (W) SCALED <br> <b> NAVD 88 </b> 812.414 (meters) 2665.39 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -25.09 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 811.903 (meters) 2663.72 (feet) COMP <br> <b> MODELED GRAV</b> 979,968.8 (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> 677,170. </td><td> 1,935,460. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2> <p> NGVD 29 (??/??/92) 811.470 (m) 2662.30 (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: 10TEL196306(NAD 83) <br>MARKER: DD = SURVEY DISK <br>SETTING: 80 = SET IN A BOULDER <br>SP_SET: BOULDER <br>STAMPING: DATUM 2644 <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>1958 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1958 7.9 MI S FROM TRINITY CENTER. 7.9 MILES SOUTH ALONG THE WEAVERVILLE-CALLAHAN ROAD FROM TRINITY CENTER, TRINITY COUNTY, 7 PACES WEST OF THE ROAD, AND IN THE TOP OF A LARGE BOULDER. A UNITED STATES GEOLOGICAL SURVEY STANDARD DISK, STAMPED DATUM 2644. NOTE-- THE DISK IS SET AT AN ANGLE AND THE ROAD WAS HELD ON TH HIGHEST POINT. LU1071 2675 USGS http://www.geocaching.com/mark/details.asp?PID=LU1071 2675 USGS Geocache Geocache 2675 USGS USGS Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>2675 USGS</h1> <b> PID </b> LU1071 <br> <b> STATE/COUNTY</b> CA/TRINITY <br> <b> USGS QUAD </b> <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 40 26 14. (N) 123 07 44. (W) SCALED <br> <b> NAVD 88 </b> 816.53 (+/-2cm) 2678.9 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -27.29 (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> 623,190. </td><td> 1,904,230. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2> <p> NGVD 29 (??/??/92) 815.59 (m) 2675.8 (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: 10TDK890762(NAD 83) <br>MARKER: N = NAIL <br>SETTING: 30 = SET IN A LIGHT STRUCTURE <br>SP_SET: 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>1949 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1949 3.2 MI SE FROM PEANUT. 3.2 MILES SOUTHWEST ALONG STATE HIGHWAY 36 FROM THE BRIDGE OVER SALT CREEK AT PEANUT, 0.1 MILE SOUTHEAST OF BENCH MARK M 857, ABOUT 175 FEET SOUTH EAST OF A POINT WHERE A SMALL STREAM CROSSES THE HIGHWAY, A COPPER NAIL AND WASHER IN THE TOP OF A 48-INCH PINE STUMP, 13 FEET SOUTHWEST OF THE CENTER LINE OF THE HIGHWAY, ABOUT 3 1/2 FEET HIGHER THAN THE HIGHWAY, AND MARKED BY THE WHITE PAINTED LETTERS EL.2675. LU0848 2752 B USGS http://www.geocaching.com/mark/details.asp?PID=LU0848 2752 B USGS Geocache Geocache 2752 B USGS USGS Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>2752 B USGS</h1> <b> PID </b> LU0848 <br> <b> STATE/COUNTY</b> CA/TRINITY <br> <b> USGS QUAD </b> WEAVERVILLE (1982) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 40 44 01. (N) 122 58 34. (W) SCALED <br> <b> NAVD 88 </b> 839.440 (meters) 2754.06 (feet) ADJUSTED <br> <hr> <b> GEOID HEIGHT</b> -26.45 (meters) GEOID03 <br> <b> DYNAMIC HT </b> 838.912 (meters) 2752.33 (feet) COMP <br> <b> MODELED GRAV</b> 979,967.4 (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> 655,940. </td><td> 1,917,560. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2> <p> NGVD 29 (??/??/92) 838.549 (m) 2751.14 (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: 10TEL020091(NAD 83) <br>MARKER: DD = SURVEY DISK <br>SETTING: 80 = SET IN A BOULDER <br>SP_SET: BOULDER <br>STAMPING: 2752 B 1905 <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>1905 </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 2.7 MI NW FROM WEAVERVILLE. 2.7 MILES NORTHWEST ALONG OLD U.S. HIGHWAY 299 (NOW A COUNTY ROAD) FROM WEAVERVILLE, TRINITY COUNTY, 0.6 MILE EAST OF THE SUMMIT OF OREGON MOUNTAIN, ON THE NORTH SIDE OF THE OLD HIGHWAY, AND IN THE TOP OF A LARGE BOULDER. A UNITED STATES GEOLOGICAL SURVEY STANDARD DISK, STAMPED 2752 B 1905. NOTE-- THE BOULDER SHOWS EVIDENCE OF HAVING BEEN MOVED-- IT HAS BEEN HIT BY A SNOW PLOW. USE WITH CAUTION. LU1074 2853 USGS http://www.geocaching.com/mark/details.asp?PID=LU1074 2853 USGS Geocache Geocache 2853 USGS USGS Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>2853 USGS</h1> <b> PID </b> LU1074 <br> <b> STATE/COUNTY</b> CA/TRINITY <br> <b> USGS QUAD </b> <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 40 25 19. (N) 123 06 24. (W) SCALED <br> <b> NAVD 88 </b> 870.70 (+/-2cm) 2856.6 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -27.23 (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> 621,470. </td><td> 1,906,090. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2> <p> NGVD 29 (??/??/92) 869.743 (m) 2853.48 (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: 10TDK909745(NAD 83) <br>MARKER: S = SPIKE <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>1949 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1949 4.3 MI NW FROM WILDWOOD. 4.3 MILES NORTHWEST ALONG STATE HIGHWAY 36 FROM THE WILDWOOD INN AT WILDWOOD, 5.1 MILES SOUTHEAST OF PEANUT, ON THE SOUTHEAST BANK OF SALT CREEK, A RAILROAD SPIKE IN THE TOP OF A ROOT ON THE NORTHWEST SIDE OF A 40-INCH PINE TREE, ABOUT 3 FEET HIGHER THAN THE HIGHWAY, AND PAINTED WHITE. LU1054 2930 USGS http://www.geocaching.com/mark/details.asp?PID=LU1054 2930 USGS Geocache Geocache 2930 USGS USGS Unknown Cache Regular 1 1 United States California NGS Datasheet <h1>2930 USGS</h1> <b> PID </b> LU1054 <br> <b> STATE/COUNTY</b> CA/TRINITY <br> <b> USGS QUAD </b> NAUFUS CREEK (1979) <br> <p> <h2>Current Survey Control</h2> <hr> <b> NAD 83(1986)</b> 40 24 29. (N) 123 15 29. (W) SCALED <br> <b> NAVD 88 </b> 893.98 (+/-2cm) 2933.0 (feet) VERTCON <br> <hr> <b> GEOID HEIGHT</b> -27.64 (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> 620,100. </td><td> 1,893,220. </td><td> MT</td><td> (+/- 180 meters Scaled)</td></tr> </table> <p> <h2>Superseded Survey Control</h2> <p> NGVD 29 (??/??/92) 893.017 (m) 2929.84 (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: 10TDK781730(NAD 83) <br>MARKER: N = NAIL <br>SETTING: 36 = SET IN A MASSIVE STRUCTURE <br>SP_SET: BRIDGE <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>1949 </td><td>GOOD </td><td>NGS</td></tr> </table> <p> <h2>STATION DESCRIPTION </h2> <p>DESCRIBED BY NATIONAL GEODETIC SURVEY 1949 6 MI NE FROM FOREST GLEN. 6.0 MILES NORTHEAST ALONG STATE HIGHWAY 36 FROM THE FOREST GLEN INN AT FOREST GLEN, 102 YARDS NORTHEAST OF BENCH MARK D 187, AT A CONCRETE BRIDGE OVER BASIN GULCH CREEK, IN THE TOP OF THE WEST END OF THE NORTH HEAD WALL, 8 1/2 FEET NORTH OF THE CENTER LINE OF THE HIGHWAY, AND ABOUT 1 1/2 FEET HIGHER THAN THE HIGHWAY.