National Geodetic Survey, Retrieval Date = SEPTEMBER 14, 2002 LT0594 *********************************************************************** LT0594 DESIGNATION - ANTELOPE LT0594 PID - LT0594 LT0594 STATE/COUNTY- CA/LASSEN LT0594 USGS QUAD - ANTELOPE MTN (1995) LT0594 LT0594 *CURRENT SURVEY CONTROL LT0594 ___________________________________________________________________ LT0594* NAD 83(1992)- 40 35 32.83952(N) 120 54 37.63493(W) ADJUSTED LT0594* NAVD 88 - 2341.1 (meters) 7681. (feet) VERTCON LT0594 ___________________________________________________________________ LT0594 EPOCH DATE - 1991.35 LT0594 LAPLACE CORR- 2.28 (seconds) DEFLEC99 LT0594 GEOID HEIGHT- -22.80 (meters) GEOID99 LT0594 LT0594 HORZ ORDER - SECOND LT0594 LT0594.The horizontal coordinates were established by classical geodetic methods LT0594.and adjusted by the National Geodetic Survey in March 1994. LT0594.The horizontal coordinates are valid at the epoch date displayed above. LT0594.The epoch date for horizontal control is a decimal equivalence LT0594.of Year/Month/Day. LT0594 LT0594.The NAVD 88 height was computed by applying the VERTCON shift value to LT0594.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) LT0594 LT0594.The Laplace correction was computed from DEFLEC99 derived deflections. LT0594 LT0594.The geoid height was determined by GEOID99. LT0594 LT0594; North East Units Scale Converg. LT0594;SPC CA 1 - 640,382.730 2,092,220.180 MT 0.99990356 +0 42 44.8 LT0594;SPC CA 1 - 2,100,989.01 6,864,225.71 sFT 0.99990356 +0 42 44.8 LT0594;UTM 10 - 4,495,615.778 676,818.066 MT 0.99998485 +1 21 35.9 LT0594 LT0594: Primary Azimuth Mark Grid Az LT0594:SPC CA 1 - ANTELOPE AZ MK 262 23 39.1 LT0594:UTM 10 - ANTELOPE AZ MK 261 44 48.0 LT0594 LT0594|---------------------------------------------------------------------| LT0594| PID Reference Object Distance Geod. Az | LT0594| dddmmss.s | LT0594| LT0595 ANTELOPE LOOKOUT TOWER 1948 21.730 METERS 13821 | LT0594| DB6171 ANTELOPE RM 2 18.887 METERS 22239 | LT0594| DB6169 ANTELOPE AZ MK 2630623.9 | LT0594| DB6170 ANTELOPE RM 1 6.510 METERS 31541 | LT0594|---------------------------------------------------------------------| LT0594 LT0594 SUPERSEDED SURVEY CONTROL LT0594 LT0594 NAD 83(1986)- 40 35 32.84242(N) 120 54 37.63975(W) AD(1984.00) 2 LT0594 NAD 27 - 40 35 33.21500(N) 120 54 33.78300(W) AD( ) 2 LT0594 NGVD 29 - 2339.9 (m) 7677. (f) VERT ANG LT0594 LT0594.Superseded values are not recommended for survey control. LT0594.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. LT0594.See file dsdata.txt to determine how the superseded data were derived. LT0594 LT0594 HISTORY - Date Condition Report By LT0594 HISTORY - 1948 MONUMENTED CGS LT0594 HISTORY - 1969 SEE DESCRIPTION CADH LT0594 LT0594 STATION DESCRIPTION LT0594 LT0594'DESCRIBED BY COAST AND GEODETIC SURVEY 1948 (WRH) LT0594'THE STATION IS LOCATED ON THE HIGHEST POINT OF ANTELOPE MOUNTAIN, LT0594'ABOUT 25 MILES NORTHEAST OF CHESTER, ABOUT 20 MILES NORTH LT0594'NORTHEAST OF WESTWOOD, ABOUT 18 MILES NORTHWEST OF SUSANVILLE, LT0594'AND ABOUT 25 FEET NORTH OF THE LOOKOUT ROAD. LT0594' LT0594'TO REACH, FROM THE U.S. POST OFFICE IN SUSANVILLE, GO WEST, LT0594'ON STATE HIGHWAY 36, FOR 5.3 MILES TO SIDE ROAD RIGHT. TURN LT0594'RIGHT, AS PER SIGN MC ARTHUR 67, AND GO NORTHERLY 7.3 MILES TO LT0594'CROSS ROADS. CONTINUE STRAIGHT AHEAD, AS PER SIGN MC ARTHUR 60, LT0594'AND GO NORTHWEST 3.8 MILES. TURN RIGHT, AS PER SIGN MC ARTHUR LT0594'56, AND GO NORTHERLY 9.0 MILES TO SIDE ROAD RIGHT. TURN RIGHT, LT0594'AS PER SIGN CAMP FLAT SUMMIT, AND GO EAST 0.4 MILES TO FORKS. LT0594'TAKE LEFT FORK, AND GO EAST 2.7 MILES TO CATTLE GUARD AND THE LT0594'AZIMUTH MARK. CONTINUE STRAIGHT AHEAD, AND GO EAST 0.2 MILES LT0594'TO FORKS. TAKE RIGHT FORK, AND GO EASTERLY 4.0 MILES TO LT0594'FORKS. TAKE RIGHT FORK, AND GO EAST 1.5 MILES TO FORKS. TAKE LT0594'LEFT FORK, AND GO SOUTHEAST 0.1 MILE TO CROSS ROADS. LT0594'CONTINUE STRAIGHT AHEAD, AS PER SIGN ANTELOPE L O 3 3/4, LT0594'AND GO SOUTH 3.5 MILES TO THE ANTELOPE LOOKOUT HOUSE AND THE LT0594'STATION SITE. LT0594' LT0594'THE STATION MARK IS A STANDARD DISK, STAMPED ANTELOPE 1948, LT0594'SET INTO A DRILL HOLE IN A BOULDER 9 FEET IN DIAMETER WHICH LT0594'PROJECTS ABOUT 4 FEET AND IS 21 FEET NORTHWEST OF THE FLAG POLE. LT0594' LT0594'REFERENCE MARK NUMBER 1 IS A STANDARD DISK, STAMPED ANTELOPE LT0594'NO 1 1948, SET INTO A DRILL HOLE IN A BOULDER 3 FEET IN DIAMETER LT0594'WHICH PROJECTS ABOUT 12 INCHES AND IS ABOUT 4 FEET LOWER THAN LT0594'THE STATION. LT0594' LT0594'REFERENCE MARK NUMBER 2 IS A STANDARD DISK, STAMPED ANTELOPE NO 2 LT0594'1948, SET INTO A DRILL HOLE IN A BOULDER WHICH PROJECTS ABOUT 3 LT0594'FEET AND IS ABOUT 3 FEET LOWER THAN THE STATION. LT0594' LT0594'THE AZIMUTH MARK IS A STANDARD DISK, STAMPED ANTELOPE 1948, LT0594'SET INTO A DRILL HOLE IN A CONCRETE BASE FOR A GATE POST WHICH LT0594'PROJECTS ABOUT 4 INCHES. IT IS LOCATED ALONG THE CAMP FLAT LT0594'SUMMIT ROAD AND WHERE THE ROAD PASSES THROUGH A WHITE CATTLE LT0594'GUARD, ABOUT 30 FEET SOUTHEAST OF THE CATTLE GUARD, AND ABOUT LT0594'18 INCHES NORTHWEST OF THE GATE POST. LT0594' LT0594'THE ANTELOPE LOOKOUT TOWER IS LOCATED ON THE HIGHEST POINT OF LT0594'ANTELOPE MOUNTAIN, ABOUT 20 FEET SQUARE, 25 FEET HIGH, PAINTED LT0594'WHITE AND GREEN, AND IS OF WOOD CONSTRUCTION. LT0594 LT0594 STATION RECOVERY (1969) LT0594 LT0594'RECOVERY NOTE BY CA DIV OF HIGHWAYS 1969 LT0594'LOST LT0594' LT0594'THE STATION SITE WAS VISITED IN 1968 BY A CALIFORNIA DIVISION OF LT0594'HIGHWAYS PARTY. THE STATION AND ALL REFERENCE MARKS HAVE LT0594'BEEN DESTROYED. A HELICOPTER LANDING SITE HAS BEEN GRADED LT0594'NEAR THE LOOKOUT HOUSE.