National Geodetic Survey, Retrieval Date = SEPTEMBER 19, 2002 MX0997 *********************************************************************** MX0997 DESIGNATION - HERD MX0997 PID - MX0997 MX0997 STATE/COUNTY- CA/SISKIYOU MX0997 USGS QUAD - GRASS LAKE (1986) MX0997 MX0997 *CURRENT SURVEY CONTROL MX0997 ___________________________________________________________________ MX0997* NAD 83(1992)- 41 37 41.42473(N) 122 13 53.52414(W) ADJUSTED MX0997* NAVD 88 - 2155.8 (meters) 7073. (feet) VERTCON MX0997 ___________________________________________________________________ MX0997 EPOCH DATE - 1991.35 MX0997 LAPLACE CORR- 5.62 (seconds) DEFLEC99 MX0997 GEOID HEIGHT- -23.48 (meters) GEOID99 MX0997 MX0997 HORZ ORDER - THIRD MX0997 MX0997.The horizontal coordinates were established by classical geodetic methods MX0997.and adjusted by the National Geodetic Survey in March 1994. MX0997.The horizontal coordinates are valid at the epoch date displayed above. MX0997.The epoch date for horizontal control is a decimal equivalence MX0997.of Year/Month/Day. MX0997 MX0997.The NAVD 88 height was computed by applying the VERTCON shift value to MX0997.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) MX0997 MX0997.The Laplace correction was computed from DEFLEC99 derived deflections. MX0997 MX0997.The geoid height was determined by GEOID99. MX0997 MX0997; North East Units Scale Converg. MX0997;SPC CA 1 - 754,848.392 1,980,706.131 MT 0.99999045 -0 09 05.0 MX0997;SPC CA 1 - 2,476,531.77 6,498,366.70 sFT 0.99999045 -0 09 05.0 MX0997;UTM 10 - 4,608,779.271 564,011.866 MT 0.99965042 +0 30 37.8 MX0997 MX0997: Primary Azimuth Mark Grid Az MX0997:SPC CA 1 - HERD AZ MK 132 23 13.4 MX0997:UTM 10 - HERD AZ MK 131 43 30.6 MX0997 MX0997|---------------------------------------------------------------------| MX0997| PID Reference Object Distance Geod. Az | MX0997| dddmmss.s | MX0997| CD8653 HERD RM 1 4.404 METERS 06021 | MX0997| MX0995 HERD LOOKOUT HOUSE 1952 8.099 METERS 07458 | MX0997| CD8652 HERD AZ MK 1321408.4 | MX0997| CD8654 HERD RM 2 3.532 METERS 16903 | MX0997| MX1044 SEATTLE SAN FRAN AIRWAY BCN 26 APPROX.29.6 KM 2050601.6 | MX0997| MX0998 HERD USFS 1952 1.965 METERS 26943 | MX0997|---------------------------------------------------------------------| MX0997 MX0997 SUPERSEDED SURVEY CONTROL MX0997 MX0997 NAD 83(1986)- 41 37 41.42180(N) 122 13 53.52984(W) AD(1984.00) 3 MX0997 NAD 27 - 41 37 41.88340(N) 122 13 49.48120(W) AD( ) 3 MX0997 NGVD 29 - 2154.6 (m) 7069. (f) VERT ANG MX0997 MX0997.Superseded values are not recommended for survey control. MX0997.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. MX0997.See file dsdata.txt to determine how the superseded data were derived. MX0997 MX0997_MARKER: DO = NOT SPECIFIED OR SEE DESCRIPTION MX0997_SETTING: 80 = SET IN A BOULDER MX0997 MX0997 HISTORY - Date Condition Report By MX0997 HISTORY - 1952 MONUMENTED CGS MX0997 MX0997 STATION DESCRIPTION MX0997 MX0997'DESCRIBED BY COAST AND GEODETIC SURVEY 1952 (WRH) MX0997'STATION IS LOCATED NEAR THE HERD MOUNTAIN LOOKOUT HOUSE, ON HERD MX0997'MOUNTAIN, AIRLINE, ABOUT 14 MILES NORTH NORTHEAST OF WEED AND MX0997'3 MILES SOUTHWEST OF GRASS LAKE AND THE GRASS LAKE RAILROAD MX0997'SIDING. MX0997' MX0997'STATION IS REACHED FROM THE JUNCTION OF U.S. HIGHWAYS 99 AND MX0997'97 AT WEED, BY GOING NORTHEAST ON U.S. HIGHWAY 97, TOWARDS MX0997'KLAMATH FALLS, FOR 17.7 MILES TO THE AZIMUTH MARK ON THE MX0997'LEFT SIDE OF THE HIGHWAY. CONTINUE NORTH FOR 1.7 MILES TO THE MX0997'ENTRANCE TO THE GRASS LAKE FIRE GUARD STATION. TURN LEFT, MX0997'WEST, CROSS THE CATTLE GUARD, TURN LEFT AT A Y FORK AND GO MX0997'0.6 MILE. TURN RIGHT AS PER SIGN HERD L.O. AND GO UP GRADE MX0997'FOR 4.0 MILES TO THE END OF THE ROAD. FROM HERE FOLLOW THE MX0997'TRAIL FOR 100 YARDS TO THE LOOKOUT HOUSE AND THE STATION. MX0997' MX0997'STATION MARK, STAMPED HERD 1952, IS A STANDARD DISK CEMENTED MX0997'IN A DRILL HOLE IN A BOULDER PROJECTING 4 INCHES. IT IS 14 FEET MX0997'WEST OF THE SOUTHWEST CORNER OF THE LOOKOUT HOUSE, 8 FEET MX0997'WEST NORTHWEST OF THE FLAG POLE AND 15 FEET EAST OF THE RIM OF MX0997'THE PEAK. MX0997' MX0997'REFERENCE MARK NUMBER 1, STAMPED HERD NO 1 1952, IS A MX0997'STANDARD DISK CEMENTED IN A DRILL HOLE IN A BOULDER PROJECTING MX0997'5 INCHES AND AT THE SAME ELEVATION AS THE STATION. IT IS 3 MX0997'FEET WEST OF THE WEST EDGE OF THE LOOKOUT HOUSE PORCH. MX0997' MX0997'REFERENCE MARK NUMBER 2, STAMPED HERD NO 2 1952, IS A STANDARD MX0997'DISK CEMENTED IN A DRILL HOLE IN OUTCROPPING BEDROCK THAT MX0997'FORMS THE SOUTH RIM OF THE PEAK. IT IS 18 INCHES LOWER IN MX0997'ELEVATION THAN THE STATION. MX0997' MX0997'AZIMUTH MARK, STAMPED HERD 1952, IS A STANDARD DISK CEMENTED MX0997'IN A DRILL HOLE IN A BOULDER THAT IS FLUSH ON THE EAST SIDE AND MX0997'PROJECTS 10 INCHES ON THE WEST SIDE. IT IS 57 FEET WEST OF MX0997'THE CENTERLINE OF THE HIGHWAY, 38 FEET EAST OF A FENCE LINE MX0997'AND 4 FEET SOUTH OF A WITNESS POST. MX0997' MX0997'U.S. DEPARTMENT OF AGRICULTURE FOREST SERVICE MARK IS NOT MX0997'CENTER MARKED AND IS STAMPED ELEV. 7060 1931. IT IS CEMENTED MX0997'IN A DRILL HOLE IN A BOULDER PROJECTING 18 INCHES AND IS 18 MX0997'INCHES HIGHER IN ELEVATION THAN THE STATION. MX0997' MX0997'HEIGHT OF LIGHT ABOVE STATION MARK 1.4 METERS.