National Geodetic Survey, Retrieval Date = NOVEMBER 2, 2004 JS3989 *********************************************************************** JS3989 DESIGNATION - BLUE MTN JS3989 PID - JS3989 JS3989 STATE/COUNTY- CA/CALAVERAS JS3989 USGS QUAD - DORRINGTON (1979) JS3989 JS3989 *CURRENT SURVEY CONTROL JS3989 ___________________________________________________________________ JS3989* NAD 83(1992)- 38 20 31.44867(N) 120 21 53.34300(W) ADJUSTED JS3989* NAVD 88 - 1851.1 (meters) 6073. (feet) VERTCON JS3989 ___________________________________________________________________ JS3989 EPOCH DATE - 1991.35 JS3989 LAPLACE CORR- 14.78 (seconds) DEFLEC99 JS3989 GEOID HEIGHT- -26.11 (meters) GEOID03 JS3989 JS3989 HORZ ORDER - SECOND JS3989 JS3989.The horizontal coordinates were established by classical geodetic methods JS3989.and adjusted by the National Geodetic Survey in March 1994. JS3989.The horizontal coordinates are valid at the epoch date displayed above. JS3989.The epoch date for horizontal control is a decimal equivalence JS3989.of Year/Month/Day. JS3989 JS3989.The NAVD 88 height was computed by applying the VERTCON shift value to JS3989.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) JS3989 JS3989.The Laplace correction was computed from DEFLEC99 derived deflections. JS3989 JS3989.The geoid height was determined by GEOID03. JS3989 JS3989; North East Units Scale Factor Converg. JS3989;SPC CA 3 - 704,449.254 2,011,817.834 MT 0.99998230 +0 04 57.9 JS3989;SPC CA 3 - 2,311,180.59 6,600,439.01 sFT 0.99998230 +0 04 57.9 JS3989;UTM 10 - 4,247,056.165 730,302.057 MT 1.00025324 +1 38 07.7 JS3989 JS3989! - Elev Factor x Scale Factor = Combined Factor JS3989!SPC CA 3 - 0.99971372 x 0.99998230 = 0.99969603 JS3989!UTM 10 - 0.99971372 x 1.00025324 = 0.99996689 JS3989 JS3989: Primary Azimuth Mark Grid Az JS3989:SPC CA 3 - LIBERTY HILL 082 45 03.7 JS3989:UTM 10 - LIBERTY HILL 081 11 53.9 JS3989 JS3989|---------------------------------------------------------------------| JS3989| PID Reference Object Distance Geod. Az | JS3989| dddmmss.s | JS3989| JS3965 LIBERTY HILL APPROX.23.2 KM 0825001.6 | JS3989| DA8778 BLUE MTN RM 2 8.252 METERS 10820 | JS3989| JS3969 ELIZABETH PEAK LOOKOUT TOWER APPROX.32.6 KM 1613615.4 | JS3989| JS3979 TELEGRAPH HILL RADIO MAST APPROX.34.5 KM 1780431.2 | JS3989| JS3990 BLUE MTN RM 1 6.939 METERS 21230 | JS3989|---------------------------------------------------------------------| JS3989 JS3989 SUPERSEDED SURVEY CONTROL JS3989 JS3989 NAD 83(1986)- 38 20 31.42213(N) 120 21 53.34183(W) AD(1984.00) 2 JS3989 NAD 27 - 38 20 31.73023(N) 120 21 49.62049(W) AD( ) 2 JS3989 NGVD 29 (07/19/86) 1850.2 (m) 6070. (f) VERT ANG JS3989 JS3989.Superseded values are not recommended for survey control. JS3989.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JS3989.See file dsdata.txt to determine how the superseded data were derived. JS3989 JS3989_U.S. NATIONAL GRID SPATIAL ADDRESS: 10SGH3030247056(NAD 83) JS3989_MARKER: DD = SURVEY DISK JS3989_SETTING: 66 = SET IN ROCK OUTCROP JS3989 JS3989 HISTORY - Date Condition Report By JS3989 HISTORY - 1972 MONUMENTED CADT JS3989 HISTORY - 1972 GOOD NGS JS3989 HISTORY - 1989 GOOD NGS JS3989 JS3989 STATION DESCRIPTION JS3989 JS3989'DESCRIBED BY CALTRANS 1972 (RMB) JS3989'THE STATION IS LOCATED ABOUT 6 AIRLINE MILES NORTH OF ARNOLD ON JS3989'THE HIGHEST POINT ON A HIGH PREDOMINATE RIDGE KNOWN AS BLUE JS3989'MOUNTAIN. IT LIES IN THE SOUTHEAST QUARTER OF SECTION 30, T.6N., JS3989'R.15E., MOUNT DIABLO MERIDIAN. JS3989' JS3989'TO REACH STATION FROM ARNOLD POST OFFICE (CALAVERAS CO.) GO JS3989'EASTERLY ON STATE ROUTE 4 FOR 0.4 MILE TO A ROAD FORK (WHITE PINES JS3989'ROAD), TAKE LEFT FORK AND GO 0.8 MILE TO WHITE PINES POST OFFICE, JS3989'CONTINUE STRAIGHT AHEAD 0.8 MILE CROSSING SAN ANTONIO CREEK AT THE JS3989'EAST END OF WHITE PINES LAKE, CONTINUE FOR 100 YARDS TO A T JS3989'INTERSECTION, THEN GO RIGHT 0.15 MILE TO A ROAD FORK, TAKE LEFT JS3989'FORK UPHILL AND GO 0.4 MILE TO A ROAD FORK AND A SIGN BLUE MOUNTAIN JS3989'15 MILES, TAKE RIGHT FORK CROSSING A CATTLE GUARD AND GO 1.45 JS3989'MILES TO A ROAD FORK, TAKE RIGHT FORK AND GO 0.15 MILE TO SUMMIT JS3989'LEVEL ROAD AND A SIGN BLUE MOUNTAIN 14 MILES, GO STRAIGHT AHEAD JS3989'5.2 MILES AND CROSS HAYWARD CREEK AND CONTINUE 1.1 MILES TO A JS3989'ROAD FORK AND A SIGN BLUE MOUNTAIN 7 MILES, TAKE LEFT FORK AND JS3989'GO 0.3 MILE AND CROSS SOUTH FORK MOKELUMNE RIVER BRIDGE, JS3989'CONTINUE FOR 0.25 MILE TO A ROAD FORK AND A SIGN BLUE MOUNTAIN 7 JS3989'MILES, TAKE RIGHT FORK AND GO 0.7 MILE TO A ROAD FORK, TAKE JS3989'RIGHT FORK AND GO 0.5 MILE TO A ROAD FORK, TAKE LEFT FORK AND JS3989'GO 0.6 MILE TO A CROSS ROAD, CONTINUE STRAIGHT AHEAD FOR 1.05 JS3989'MILES TO A ROAD FORK AND A SIGN BLUE MOUNTAIN 4 MILES, TAKE JS3989'LEFT FORK AND FOLLOW ROAD TO LOOKOUT HOUSE AND STATION. JS3989' JS3989'(ALTERNATE) TO REACH STATION FROM INTERSECTION OF JS3989'WEST POINT - PIONEER ROAD AND STATE HIGHWAY 26 IN WEST POINT, JS3989'PROCEED SOUTH ON STATE HIGHWAY 26 AND GO 1.0 MILE TO BRIDGE JS3989'(MIDDLE FORK MOKELUMNE RIVER) AND ROAD FORK, TAKE LEFT FORK (AS JS3989'PER SIGN WILSEYVILLE 1 - RAILROAD FLAT 5 IN) AND GO 0.4 MILE TO A JS3989'ROAD FORK, TAKE LEFT FORK AND GO 1.4 MILES TO A ROAD FORK AND A JS3989'SIGN RAILROAD FLAT 3, TAKE LEFT FORK AND GO 3.2 MILES TO A JS3989'ROAD FORK AND A SIGN SHAADS RESORT - CABINS CAMPSITES 1 MI., TAKE JS3989'RIGHT FORK AND GO 2.0 MILES TO A ROAD FORK AND END OF PAVED JS3989'ROAD AND SIGN ON LEFT BLUE MTN. 10 - WHITE PINES 22, TAKE RIGHT JS3989'FORK AND GO 1.8 MILES TO A ROAD FORK, TAKE LEFT FORK AND GO JS3989'0.7 MILE TO A ROAD FORK AND SIGN ON RIGHT WHITE PINES 20, TAKE JS3989'RIGHT FORK AND GO 0.05 MILE TO A ROAD FORK, TAKE RIGHT FORK AND JS3989'GO 1.2 MILES TO A ROAD FORK, TAKE LEFT FORK AND GO 3.5 MILES TO JS3989'A ROAD FORK AND SIGN WHITE PINES 15, TAKE RIGHT FORK AND GO 0.2 JS3989'MILE TO A ROAD FORK, TAKE RIGHT FORK AND GO 1.2 MILES TO SIGN BLUE JS3989'MTN. 4, TURN RIGHT (WEST) AND GO 3.5 MILES TO A ROAD FORK AND A JS3989'SIGN BLUE MT. LOOKOUT 1, TAKE LEFT FORK AND GO 0.25 MILE TO TOP JS3989'OF MOUNTAIN AND STATION. JS3989' JS3989'THE STATION MARK IS A STANDARD CALIFORNIA DIVISION OF HIGHWAYS JS3989'BRASS DISK, STAMPED BLUE MTN. 1971, EPOXIED IN A DRILLED HOLE IN A JS3989'ROCK OUTCROP 13.3 FEET EAST-NORTHEAST OF THE NORTHEAST CORNER OF JS3989'THE LOOKOUT HOUSE. JS3989' JS3989'REFERENCE MARK 1 IS A STANDARD CALIFORNIA DIVISION OF HIGHWAYS JS3989'BRASS DISK, STAMPED BLUE MTN. RM 1 1972, WITH AN ARROW POINTING JS3989'TOWARD THE STATION. IT IS EPOXIED IN A DRILLED HOLE IN THE JS3989'SOUTHEAST, CONCRETE FOOTING OF THE LOOKOUT HOUSE. IT IS 2.3 FEET JS3989'SOUTHEAST OF THE SOUTHEAST CORNER OF THE LOOKOUT HOUSE. IT IS JS3989'WEST-SOUTHWEST OF AND ABOUT 0.3 FEET LOWER THAN THE STATION. JS3989' JS3989'USGS REFERENCE MARK 1 IS A STANDARD REFERENCE DISK, STAMPED JS3989'BLUE MTN. NO 1 AND CEMENTED IN BEDROCK. JS3989' JS3989'USGS REFERENCE MARK 2 IS A STANDARD REFERENCE DISK, STAMPED NO JS3989'2 1956 AND CEMENTED IN TOP SOLID ROCK. JS3989 JS3989 STATION RECOVERY (1972) JS3989 JS3989'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1972 (RMB) JS3989'ALL MARKS FOUND AS PREVIOUSLY DESCRIBED AND IN GOOD CONDITION. THE JS3989'DISTANCES AND DIRECTIONS TO THE REFERENCE MARKS WERE NOT JS3989'MEASURED, SINCE THE STATION WAS OCCUPIED THREE MONTHS EARLIER. JS3989' JS3989'AIRLINE DISTANCE AND DIRECTION FROM NEAREST TOWN JS3989'6 MILES NORTH OF ARNOLD. JS3989 JS3989 STATION RECOVERY (1989) JS3989 JS3989'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1989 (PDG) JS3989'RECOVERED IN GOOD CONDITION.