National Geodetic Survey, Retrieval Date = OCTOBER 25, 2004 KS1459 *********************************************************************** KS1459 DESIGNATION - GROUSE RIDGE KS1459 PID - KS1459 KS1459 STATE/COUNTY- CA/NEVADA KS1459 USGS QUAD - ENGLISH MTN (1983) KS1459 KS1459 *CURRENT SURVEY CONTROL KS1459 ___________________________________________________________________ KS1459* NAD 83(1992)- 39 23 10.64597(N) 120 36 45.60378(W) ADJUSTED KS1459* NAVD 88 - 2350.3 (meters) 7711. (feet) VERTCON KS1459 ___________________________________________________________________ KS1459 EPOCH DATE - 1991.35 KS1459 LAPLACE CORR- 10.00 (seconds) DEFLEC99 KS1459 GEOID HEIGHT- -23.54 (meters) GEOID03 KS1459 KS1459 HORZ ORDER - SECOND KS1459 KS1459.The horizontal coordinates were established by classical geodetic methods KS1459.and adjusted by the National Geodetic Survey in March 1994. KS1459.The horizontal coordinates are valid at the epoch date displayed above. KS1459.The epoch date for horizontal control is a decimal equivalence KS1459.of Year/Month/Day. KS1459 KS1459.The NAVD 88 height was computed by applying the VERTCON shift value to KS1459.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) KS1459 KS1459.The Laplace correction was computed from DEFLEC99 derived deflections. KS1459 KS1459.The geoid height was determined by GEOID03. KS1459 KS1459; North East Units Scale Factor Converg. KS1459;SPC CA 2 - 691,801.417 2,119,510.208 MT 0.99992849 +0 52 28.8 KS1459;SPC CA 2 - 2,269,685.15 6,953,759.74 sFT 0.99992849 +0 52 28.8 KS1459;UTM 10 - 4,362,364.017 705,606.243 MT 1.00012052 +1 30 55.4 KS1459 KS1459! - Elev Factor x Scale Factor = Combined Factor KS1459!SPC CA 2 - 0.99963509 x 0.99992849 = 0.99956360 KS1459!UTM 10 - 0.99963509 x 1.00012052 = 0.99975556 KS1459 KS1459: Primary Azimuth Mark Grid Az KS1459:SPC CA 2 - GROUSE RIDGE AZ MK 204 28 57.2 KS1459:UTM 10 - GROUSE RIDGE AZ MK 203 50 30.6 KS1459 KS1459|---------------------------------------------------------------------| KS1459| PID Reference Object Distance Geod. Az | KS1459| dddmmss.s | KS1459| DB7853 GROUSE RIDGE RM 3 4.740 METERS 07954 | KS1459| KS1458 GROUSE RIDGE LOOKOUT TWR 1949 12.945 METERS 15303 | KS1459| DB7854 GROUSE RIDGE RM 4 5.255 METERS 15856 | KS1459| DB7852 GROUSE RIDGE RM 2 6.757 METERS 16638 | KS1459| DB7850 GROUSE RIDGE AZ MK 2052126.0 | KS1459| DB7851 GROUSE RIDGE RM 1 7.379 METERS 28936 | KS1459|---------------------------------------------------------------------| KS1459 KS1459 SUPERSEDED SURVEY CONTROL KS1459 KS1459 NAD 83(1986)- 39 23 10.63980(N) 120 36 45.58369(W) AD(1984.00) 2 KS1459 NAD 27 - 39 23 10.99500(N) 120 36 41.82100(W) AD( ) 2 KS1459 NGVD 29 (07/19/86) 2349.2 (m) 7707. (f) VERT ANG KS1459 KS1459.Superseded values are not recommended for survey control. KS1459.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. KS1459.See file dsdata.txt to determine how the superseded data were derived. KS1459 KS1459_U.S. NATIONAL GRID SPATIAL ADDRESS: 10SGJ0560662364(NAD 83) KS1459_MARKER: DD = SURVEY DISK KS1459_SETTING: 66 = SET IN ROCK OUTCROP KS1459_STABILITY: A = MOST RELIABLE AND EXPECTED TO HOLD KS1459+STABILITY: POSITION/ELEVATION WELL KS1459 KS1459 HISTORY - Date Condition Report By KS1459 HISTORY - 1947 MONUMENTED USGS KS1459 HISTORY - 1949 GOOD CGS KS1459 HISTORY - 1954 GOOD USGS KS1459 HISTORY - 1992 MARK NOT FOUND LOCENG KS1459 KS1459 STATION DESCRIPTION KS1459 KS1459'DESCRIBED BY US GEOLOGICAL SURVEY 1947 KS1459'LOCATED ABOUT 33 FT N. OF MOST NORTHERLY CORNER OF USFS GROUSE KS1459'RIDGE LO, ON HIGHEST POINT OF GROUSE RIDGE. KS1459' KS1459'TO REACH FROM NEVADA CITY, DRIVE 22.7 MI N. ON STATE HWY. 20 TO KS1459'SIGN BOWMAN LAKE 16. TURN LEFT FOLLOWING MAIN RD. 6.2 MI TO KS1459'SIGN GROUSE RIDGE LOOKOUT 6. TURN RIGHT FOLLOWING MAIN RD. 5.6 KS1459'MI TO LO AND STATION. KS1459' KS1459'STATION MARK--STANDARD TABLET STAMPED---GROUSE RIDGE 1947---, SET KS1459'IN GRANITE OUTCROP. KS1459' KS1459'RM 1--STANDARD RM TABLET STAMPED---GROUSE RIDGE NO 1 1947---, SET IN KS1459'GRANITE OUTCROP ABOUT 8 FT LOWER THAN STATION MARK. KS1459' KS1459'RM 2--STANDARD RM TABLET STAMPED---GROUSE RIDGE NO 2 1947---, SET KS1459'IN GRANITE OUTCROP, 10 FT N. OF NORTH CORNER OF LO AND ABOUT 2 FT KS1459'HIGHER THAN STATION MARK. KS1459 KS1459 STATION RECOVERY (1949) KS1459 KS1459'RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1949 (WRH) KS1459'THE STATION IS LOCATED ON THE SUMMIT OF GROUSE RIDGE, A ROCKY KS1459'PEAK THAT HAS A CLIFF ON ITS WEST SIDE. IT IS ABOUT 26 MILES KS1459'AIRLINE EAST NORTHEAST OF GRASS VALLEY, AND ABOUT 23 MILES KS1459'AIRLINE WEST NORTHWEST OF TRUCKEE. THIS IS THE SAME HIGH POINT KS1459'THAT THE GROUSE RIDGE LOOKOUT TOWER IS ON. KS1459' KS1459'THE STATION IS 32 FEET NORTHWEST OF THE GROUSE RIDGE LOOKOUT KS1459'TOWER AND ABOUT 5 FEET LOWER THAN THE HIGHEST POINT OF THE KS1459'MOUNTAIN. IT IS A STANDARD USGS STATION DISK THAT IS SET IN KS1459'A DRILL HOLE IN BEDROCK. THE DISK IS STAMPED GROUSE RIDGE KS1459'1947. KS1459' KS1459'REFERENCE MARK NUMBER ONE IS ABOUT 10 FEET LOWER THAN THE STATION KS1459'AND WAS PLACED IN A SMALL LEDGE ON THE CLIFF SIDE OF THE KS1459'MOUNTAIN. IT IS A STANDARD USGS REFERENCE MARK DISK THAT IS KS1459'SET IN A DRILL HOLE IN BEDROCK. THE DISK IS STAMPED GROUSE RIDGE KS1459'NO 1 1947. KS1459' KS1459'REFERENCE MARK NUMBER TWO IS 1.5 FEET SOUTHWEST OF THE SOUTHWEST KS1459'CORNER OF THE CONCRETE BASE THAT SUPPORTS A WIND CHARGER. IT KS1459'IS A STANDARD USGS REFERENCE MARK DISK THAT IS SET IN A DRILL KS1459'HOLE IN BEDROCK THAT PROJECTS ABOUT 2 INCHES ABOVE THE GROUND. KS1459'IT IS ABOUT 2.5 FEET HIGHER THAN THE STATION. THE DISK IS KS1459'STAMPED GROUSE RIDGE NO 2 1947. KS1459' KS1459'REFERENCE MARK NUMBER THREE IS ABOUT 1 FOOT LOWER THAN THE STATION. KS1459'IT IS A STANDARD REFERENCE MARK DISK THAT IS SET IN A DRILL KS1459'HOLE IN A BOULDER THAT PROJECTS 6 INCHES ABOVE THE GROUND. THE KS1459'DISK IS STAMPED GROUSE RIDGE USGS NO 3 1949. KS1459' KS1459'REFERENCE MARK NUMBER FOUR IS SET IN A DRILL HOLE IN THE CONCRETE KS1459'BASE THAT SUPPORTS A WIND CHARGER. THE BASE PROJECTS ABOUT 20 KS1459'INCHES ABOVE THE GROUND AND IS ABOUT 3 FEET HIGHER THAN THE KS1459'STATION. THE DISK IS STAMPED GROUSE RIDGE USGS NO 1 1947. KS1459' KS1459'THE AZIMUTH MARK IS LOCATED ON THE NORTH SLOPE OF A ROCK HUMP. KS1459'IT IS 15 FEET NORTH OF AN 8 INCH PINE TREE THAT HAS A TRIANGULAR KS1459'BLAZE ON ITS TRUNK AND ABOUT 10 FEET LOWER THAN THE HIGHEST KS1459'POINT OF THE HUMP. IT IS A STANDARD AZIMUTH MARK DISK THAT IS KS1459'SET IN A DRILL HOLE IN BEDROCK THAT PROJECTS ABOUT 2 FEET ABOVE KS1459'THE GROUND. THE DISK IS STAMPED GROUSE RIDGE 1949. TO REACH KS1459'THE MARK FROM THE STATION PACK SOUTH AND SOUTHWEST ALONG THE KS1459'TOP OF THE RIDGE TO THE HIGH ROCK HUMP AND THE MARK AS KS1459'DESCRIBED. KS1459' KS1459'THE GROUSE RIDGE LOOKOUT TOWER IS AN ENCLOSED WOODEN TOWER THAT KS1459'IS 16 FEET SQUARE AT THE BASE AND IS 20 FEET HIGH. THE TOWER IS KS1459'PAINTED GREEN. THE CENTER OF THE TOWER WILL SERVE AS THE KS1459'SUBSTITUTE STATION. THE CENTER OF THE BASE OF THE TOWER IS KS1459'1.21 METERS HIGHER THAN THE STATION. KS1459' KS1459'TO REACH THE STATION FROM THE U.S. POST OFFICE IN GRASS VALLEY GO KS1459'NORTH FOR 1 BLOCK TO STATE HIGHWAY 20. TURN RIGHT AND FOLLOW KS1459'STATE HIGHWAY 20 FOR 17.4 MILES TO A SIDE ROAD LEFT. TURN LEFT KS1459'AS PER SIGN BOWMAN LAKE 16 AND FOLLOW THE MAIN TRAVELED ROAD FOR KS1459'6.5 MILES TO A FORK. TAKE THE RIGHT FORK AS PER SIGN GROUSE KS1459'RIDGE L.O. 6 AND FOLLOW THE ROAD TO THE GROUSE RIDGE LOOKOUT KS1459'TOWER AND THE STATION AS DESCRIBED. KS1459' KS1459'HEIGHT OF LIGHT ABOVE STATION MARK 1.44 METERS. KS1459 KS1459 STATION RECOVERY (1954) KS1459 KS1459'RECOVERY NOTE BY US GEOLOGICAL SURVEY 1954 KS1459'RECOVERED AS DESCRIBED. ALL MARKS IN GOOD CONDITION. TWO MORE KS1459'RMS WERE SET BY NGS. KS1459' KS1459'RM 3--NGS RM DISK STAMPED---GROUSE RIDGE USGS NO 3 1949---, SET IN KS1459'DRILL HOLE IN BOULDER PROJECTING 6 INCHES ABOVE GROUND. KS1459' KS1459'RM 4--NGS RM DISK STAMPED---GROUSE RIDGE USGS NO 1 1947---, SET IN KS1459'DRILL HOLE IN CONCRETE BASE THAT SUPPORTS WIND CHARGER. KS1459' KS1459'GROUSE RIDGE LOT--NOT DESCRIBED. KS1459 KS1459 STATION RECOVERY (1992) KS1459 KS1459'RECOVERY NOTE BY LOCAL ENGINEER (INDIVIDUAL OR FIRM) 1992 (RRS) KS1459'MARK NOT FOUND.