National Geodetic Survey, Retrieval Date = SEPTEMBER 29, 2002 JR1176 *********************************************************************** JR1176 DESIGNATION - LEVIATHAN JR1176 PID - JR1176 JR1176 STATE/COUNTY- CA/ALPINE JR1176 USGS QUAD - TOPAZ LAKE (1988) JR1176 JR1176 *CURRENT SURVEY CONTROL JR1176 ___________________________________________________________________ JR1176* NAD 83(1992)- 38 41 02.33090(N) 119 36 43.69529(W) ADJUSTED JR1176* NAVD 88 - 2726.7 (meters) 8946. (feet) VERTCON JR1176 ___________________________________________________________________ JR1176 EPOCH DATE - 1991.35 JR1176 LAPLACE CORR- -4.08 (seconds) DEFLEC99 JR1176 GEOID HEIGHT- -24.40 (meters) GEOID99 JR1176 JR1176 HORZ ORDER - SECOND JR1176 JR1176.The horizontal coordinates were established by classical geodetic methods JR1176.and adjusted by the National Geodetic Survey in March 1994. JR1176.The horizontal coordinates are valid at the epoch date displayed above. JR1176.The epoch date for horizontal control is a decimal equivalence JR1176.of Year/Month/Day. JR1176 JR1176.The NAVD 88 height was computed by applying the VERTCON shift value to JR1176.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) JR1176 JR1176.The Laplace correction was computed from DEFLEC99 derived deflections. JR1176 JR1176.The geoid height was determined by GEOID99. JR1176 JR1176; North East Units Scale Converg. JR1176;SPC CA 2 - 615,656.883 2,207,732.332 MT 0.99993898 +1 30 19.7 JR1176;SPC CA 2 - 2,019,867.62 7,243,201.83 sFT 0.99993898 +1 30 19.7 JR1176;UTM 11 - 4,284,946.982 272,790.333 MT 1.00023576 -1 38 00.1 JR1176 JR1176: Primary Azimuth Mark Grid Az JR1176:SPC CA 2 - LEVIATHAN AZ MK 222 13 53.7 JR1176:UTM 11 - LEVIATHAN AZ MK 225 22 13.5 JR1176 JR1176|---------------------------------------------------------------------| JR1176| PID Reference Object Distance Geod. Az | JR1176| dddmmss.s | JR1176| DB2015 LEVIATHAN RM 1 6.315 METERS 03037 | JR1176| DB2016 LEVIATHAN RM 2 9.218 METERS 12242 | JR1176| JR1175 LEVIATHAN LOH 55.685 METERS 15136 | JR1176| DB2014 LEVIATHAN AZ MK 2234413.4 | JR1176|---------------------------------------------------------------------| JR1176 JR1176 SUPERSEDED SURVEY CONTROL JR1176 JR1176 NAD 83(1986)- 38 41 02.28577(N) 119 36 43.68197(W) AD(1984.00) 2 JR1176 NAD 27 - 38 41 02.63254(N) 119 36 40.05813(W) AD( ) 2 JR1176 NGVD 29 - 2725.3 (m) 8941. (f) VERT ANG JR1176 JR1176.Superseded values are not recommended for survey control. JR1176.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JR1176.See file dsdata.txt to determine how the superseded data were derived. JR1176 JR1176_MARKER: DO = NOT SPECIFIED OR SEE DESCRIPTION JR1176_SETTING: 66 = SET IN ROCK OUTCROP JR1176 JR1176 HISTORY - Date Condition Report By JR1176 HISTORY - 1972 MONUMENTED CADT JR1176 JR1176 STATION DESCRIPTION JR1176 JR1176'DESCRIBED BY CALTRANS 1972 (RMB) JR1176'THE STATION IS LOCATED 9.2 MILES EAST OF MARKLEEVILLE ON A HIGH, JR1176'PROMINENT, BARREN PEAK IN THE TOIYABE NATIONAL FOREST, ADJACENT JR1176'TO LEVIATHAN FIRE LOOKOUT TOWER. IT LIES IN THE SOUTHWEST QUARTER JR1176'OF SECTION 30, T9N, R22E, MOUNT DIABLO MERIDIAN. JR1176' JR1176'TO REACH THE STATION FROM MARKLEEVILLE POST OFFICE, GO 4.7 MILES JR1176'SOUTHEASTERLY ON STATE ROUTE 4-89 TO THE JUNCTION OF STATE ROUTES JR1176'4 AND 89 AND TURN LEFT ON STATE ROUTE 89. GO 7.15 MILES JR1176'EASTERLY ON STATE ROUTE 89 TO THE CREST OF A ROCKY RIDGE AND THE JR1176'AZIMUTH MARK ON THE NORTH SIDE OF THE ROAD. CONTINUE 1.0 MILE JR1176'EASTERLY ON STATE ROUTE 89 AND TURN LEFT ON A GRAVEL ROAD AT A JR1176'SIGN LEVIATHAN FIRE LOOKOUT, TOIYABE NATIONAL FOREST. GO 1.4 JR1176'MILES NORTHEASTERLY ON THE GRAVEL ROAD TO THE TOP OF THE HILL JR1176'AND THE STATION LOCATED ON A ROCKY KNOB JUST NORTH OF THE JR1176'LOOKOUT HOUSE. THIS IS A 25 MINUTE DRIVE FROM JR1176'MARKLEEVILLE AND A TWO WHEEL DRIVE VEHICLE IS ADEQUATE. JR1176' JR1176'THE STATION MARK IS A CALIFORNIA DIVISION OF HIGHWAYS BRASS DISK, JR1176'STAMPED LEVIATHAN 1971, EPOXIED IN A DRILL HOLE IN A BEDROCK JR1176'OUTCROP THAT PROJECTS 0.2 FOOT ABOVE GROUND AND IS LOCATED ON A JR1176'ROCKY KNOB 172.8 FEET NORTH OF THE NORTHWEST CORNER OF THE LOOKOUT JR1176'HOUSE, 23.7 FEET EAST OF AND 2 FEET LOWER THAN A LARGE BOULDER JR1176'WITH A WIND POWERED GENERATOR MOUNTED ON TOP. JR1176' JR1176'REFERENCE MARK 1 IS A CALIFORNIA DIVISION OF HIGHWAYS BRASS JR1176'DISK, STAMPED LEVIATHAN RM 1 1971, EPOXIED IN A DRILL HOLE IN A JR1176'BOULDER THAT PROJECTS 0.5 FOOT ABOVE GROUND AND IS LOCATED JR1176'26.9 FEET EAST OF THE GENERATOR MOUNTED BOULDER, 25.5 FEET JR1176'NORTHWEST OF THE WEST CORNER OF A SMALL, RED, SHINGLE COVERED JR1176'RADIO BUILDING AND IS 0.1 FOOT LOWER THAN THE STATION. JR1176' JR1176'REFERENCE MARK 2 IS A CALIFORNIA DIVISION OF HIGHWAYS BRASS DISK, JR1176'STAMPED LEVIATHAN RM 2 1971, EPOXIED IN A DRILL HOLE IN BEDROCK JR1176'FLUSH WITH THE GROUND AND IS LOCATED NEAR THE NORTHWEST EDGE JR1176'OF A WIDENED PARKING AREA ON THE OUTSIDE OF A HAIRPIN LOOP IN THE JR1176'DRIVEWAY, 30 FEET SOUTH OF THE HIGHEST POINT ON THE ROCK RIDGE JR1176'AND IS 1.4 FEET LOWER THAN THE STATION. JR1176' JR1176'THE AZIMUTH MARK IS A CALIFORNIA DIVISION OF HIGHWAYS BRASS JR1176'DISK, STAMPED LEVIATHAN AZI. 1971, EPOXIED IN A DRILL HOLE IN A JR1176'ROUNDED BOULDER THAT PROJECTS 0.7 FOOT ABOVE GROUND AND IS LOCATED JR1176'85 FEET NORTH OF THE CENTERLINE OF STATE ROUTE 89, 72 FEET JR1176'NORTHEAST OF A 16 INCH CYPRESS TREE AND 50 FEET NORTHEAST OF A JR1176'CLUMP OF SCRUBBY TREES. JR1176' JR1176'THE LOOKOUT HOUSE IS A CONCRETE BLOCK BUILDING WITH A WOODEN JR1176'CATWALK AND A GLASSED IN ROOM ON TOP. THE BASE DEMENSIONS ARE JR1176'15 X 15 FEET AND IT HAS A RELATIVELY FLAT TOP WITH A 2 INCH WOODEN JR1176'POST PROJECTING 2 FEET ABOVE THE ROOF NEAR THE CENTER OF THE JR1176'ROOF. THE WOODEN POST IS USED FOR THE INTERSECTION STATION, JR1176'WHICH IS CALLED LEVIATHAN LOOKOUT HOUSE.