National Geodetic Survey, Retrieval Date = NOVEMBER 3, 2004 JS4007 *********************************************************************** JS4007 DESIGNATION - SIERRA VISTA JS4007 PID - JS4007 JS4007 STATE/COUNTY- CA/CALAVERAS JS4007 USGS QUAD - CALAVERITAS (1962) JS4007 JS4007 *CURRENT SURVEY CONTROL JS4007 ___________________________________________________________________ JS4007* NAD 83(1992)- 38 13 46.24686(N) 120 36 51.54047(W) ADJUSTED JS4007* NAVD 88 - 848.1 (meters) 2782. (feet) VERTCON JS4007 ___________________________________________________________________ JS4007 EPOCH DATE - 1991.35 JS4007 LAPLACE CORR- 13.60 (seconds) DEFLEC99 JS4007 GEOID HEIGHT- -28.46 (meters) GEOID03 JS4007 JS4007 HORZ ORDER - SECOND JS4007 JS4007.The horizontal coordinates were established by classical geodetic methods JS4007.and adjusted by the National Geodetic Survey in March 1994. JS4007.The horizontal coordinates are valid at the epoch date displayed above. JS4007.The epoch date for horizontal control is a decimal equivalence JS4007.of Year/Month/Day. JS4007 JS4007.The NAVD 88 height was computed by applying the VERTCON shift value to JS4007.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) JS4007 JS4007.The Laplace correction was computed from DEFLEC99 derived deflections. JS4007 JS4007.The geoid height was determined by GEOID03. JS4007 JS4007; North East Units Scale Factor Converg. JS4007;SPC CA 3 - 691,953.236 1,989,991.011 MT 0.99996397 -0 04 12.0 JS4007;SPC CA 3 - 2,270,183.24 6,528,828.84 sFT 0.99996397 -0 04 12.0 JS4007;UTM 10 - 4,233,971.538 708,816.404 MT 1.00013704 +1 28 36.6 JS4007 JS4007! - Elev Factor x Scale Factor = Combined Factor JS4007!SPC CA 3 - 0.99987141 x 0.99996397 = 0.99983538 JS4007!UTM 10 - 0.99987141 x 1.00013704 = 1.00000843 JS4007 JS4007: Primary Azimuth Mark Grid Az JS4007:SPC CA 3 - MURPHY 136 10 22.2 JS4007:UTM 10 - MURPHY 134 37 33.6 JS4007 JS4007|---------------------------------------------------------------------| JS4007| PID Reference Object Distance Geod. Az | JS4007| dddmmss.s | JS4007| JS4006 SIERRA VISTA LOOKOUT TOWER 38.977 METERS 00127 | JS4007| DA9745 SIERRA VISTA RM 2 9.737 METERS 05943 | JS4007| JS4009 MURPHY APPROX.14.1 KM 1360610.2 | JS4007| JS4024 VALLEY SPRINGS LOOKOUT HOUSE APPROX.20.0 KM 2624221.0 | JS4007| JS3999 JACKSON BUTTE RADIO MAST APPROX.15.4 KM 3224018.8 | JS4007| DA9744 SIERRA VISTA RM 1 12.117 METERS 32522 | JS4007| JS4004 MT ZION LOOKOUT TOWER APPROX.18.1 KM 3492628.1 | JS4007|---------------------------------------------------------------------| JS4007 JS4007 SUPERSEDED SURVEY CONTROL JS4007 JS4007 NAD 83(1986)- 38 13 46.22462(N) 120 36 51.54288(W) AD(1984.00) 2 JS4007 NAD 27 - 38 13 46.52115(N) 120 36 47.79346(W) AD( ) 2 JS4007 NGVD 29 (07/19/86) 847.3 (m) 2780. (f) VERT ANG JS4007 JS4007.Superseded values are not recommended for survey control. JS4007.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JS4007.See file dsdata.txt to determine how the superseded data were derived. JS4007 JS4007_U.S. NATIONAL GRID SPATIAL ADDRESS: 10SGH0881633972(NAD 83) JS4007_MARKER: DD = SURVEY DISK JS4007_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT JS4007 JS4007 HISTORY - Date Condition Report By JS4007 HISTORY - 1972 MONUMENTED CADT JS4007 HISTORY - 19891205 MARK NOT FOUND LOCSUR JS4007 JS4007 STATION DESCRIPTION JS4007 JS4007'DESCRIBED BY CALTRANS 1972 (RMB) JS4007'THE STATION IS 4.0 MILES WEST OF MOUNTAIN RANCH AND 4.5 MILES JS4007'NORTHEAST OF SAN ANDREAS ON THE HIGHEST POINT OF A RIDGE KNOWN AS JS4007'QUIGGS MOUNTAIN. IT LIES IN THE NORTHEAST QUARTER OF SECTION 2, JS4007'T4N, R12E, MOUNT DIABLO MERIDIAN. JS4007' JS4007'TO REACH THE STATION FROM MOUNTAIN RANCH, TAKE WHISKEY SLIDE ROAD JS4007'NORTH FOR 0.4 MILE TO A ROAD FORK. TAKE LEFT FORK FOR 1.8 MILES JS4007'TO A THREE WAY ROAD FORKS, TAKE LEFT FORK WEST MURRAY CREEK ROAD, JS4007'PROCEED SOUTHWEST ON A PAVED ROAD FOR 2.6 MILES TO A DIRT ROAD, JS4007'TURN LEFT ON DIRT ROAD AND GO SOUTH 0.6 MILE CROSSING TWO CATTLE JS4007'GUARDS TO A DIRT ROAD T INTERSECTION, TURN RIGHT AND GO 1.0 JS4007'MILE TO A FIRE LOOKOUT AND THE STATION. JS4007' JS4007'THE STATION MARK IS A CALIFORNIA DIVISION OF HIGHWAYS BRASS DISK JS4007'STAMPED SIERRA VISTA 1972. IT IS SET IN A 10 INCH CONCRETE JS4007'CYLINDER THAT PROTRUDES 0.4 FOOT ABOVE THE GROUND, AND IS LOCATED JS4007'BETWEEN SIERRA VISTA LOOKOUT TOWER AND A RADIO COMMUNICATIONS JS4007'INSTALLATION. IT IS 60.5 FEET SOUTH-SOUTHEAST OF A 30 INCH JS4007'OAK TREE, 119.7 FEET SOUTH OF THE SOUTHWEST LEG OF THE LOOKOUT JS4007'TOWER WHICH IS ON THE HIGHEST POINT ON THE HILL, 35.4 FEET JS4007'SOUTH-SOUTHWEST OF A 15 INCH PINE TREE AND 63 FEET JS4007'NORTH-NORTHWEST OF THE NORTHWEST CORNER OF THE RADIO JS4007'COMMUNICATIONS CHAIN LINK FENCE. JS4007' JS4007'REFERENCE MARK 1 IS A CALIFORNIA DIVISION OF HIGHWAYS BRASS DISK JS4007'STAMPED SIERRA VISTA RM 1 1972. IT IS EPOXIED IN A DRILL HOLE JS4007'IN A ROCK OUTCROPPING THAT IS FLUSH WITH THE GROUND AND ON THE JS4007'WEST EDGE OF THE FLATTENED OFF AREA. IT IS 21 FEET JS4007'SOUTH-SOUTHEAST OF A 30 INCH OAK TREE, 89.1 FEET SOUTH OF THE JS4007'SOUTHWEST LEG OF THE LOOKOUT TOWER, 48.7 FEET WEST OF A 15 INCH JS4007'PINE TREE AND 1.4 FEET HIGHER THAN THE STATION. JS4007' JS4007'REFERENCE MARK 2 IS A CALIFORNIA DIVISION OF HIGHWAYS BRASS DISK JS4007'STAMPED SIERRA VISTA RM 2 1972, SET IN A 10 INCH CONCRETE CYLINDER JS4007'THAT PROJECTS 0.2 FOOT ABOVE THE SURROUNDING GROUND. IT IS ON THE JS4007'EAST EDGE OF THE RIDGE, 21.2 FEET EAST OF THE NORTHEAST CORNER JS4007'OF A 4 X 6 FOOT CORRIGATED METAL BUILDING, 7.0 FEET JS4007'SOUTH-SOUTHEAST OF A 15 INCH PINE TREE AND AT THE SAME ELEVATION JS4007'AS THE STATION. JS4007' JS4007'THE UNDERGROUND STATION MARK IS A CALIFORNIA DIVISION OF HIGHWAYS JS4007'BRASS DISK STAMPED SIERRA VISTA 1972, SET IN A MOUND OF CONCRETE 24 JS4007'INCHES BELOW THE GROUND SURFACE. JS4007 JS4007 STATION RECOVERY (1989) JS4007 JS4007'RECOVERY NOTE BY LOCAL SURVEYOR (INDIVIDUAL OR FIRM) 1989 (FEW) JS4007'MARK NOT FOUND.