National Geodetic Survey, Retrieval Date = NOVEMBER 3, 2004 HS4606 *********************************************************************** HS4606 DESIGNATION - BIG HILL HS4606 PID - HS4606 HS4606 STATE/COUNTY- CA/TUOLUMNE HS4606 USGS QUAD - KEYSTONE (1987) HS4606 HS4606 *CURRENT SURVEY CONTROL HS4606 ___________________________________________________________________ HS4606* NAD 83(1992)- 37 49 42.76972(N) 120 34 06.30521(W) ADJUSTED HS4606* NAVD 88 - 464.8 (meters) 1525. (feet) VERTCON HS4606 ___________________________________________________________________ HS4606 EPOCH DATE - 1991.35 HS4606 LAPLACE CORR- 8.19 (seconds) DEFLEC99 HS4606 GEOID HEIGHT- -29.97 (meters) GEOID03 HS4606 HS4606 HORZ ORDER - FIRST HS4606 HS4606.The horizontal coordinates were established by classical geodetic methods HS4606.and adjusted by the National Geodetic Survey in March 1994. HS4606.The horizontal coordinates are valid at the epoch date displayed above. HS4606.The epoch date for horizontal control is a decimal equivalence HS4606.of Year/Month/Day. HS4606 HS4606.The NAVD 88 height was computed by applying the VERTCON shift value to HS4606.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) HS4606 HS4606.The Laplace correction was computed from DEFLEC99 derived deflections. HS4606 HS4606.The geoid height was determined by GEOID03. HS4606 HS4606; North East Units Scale Factor Converg. HS4606;SPC CA 3 - 647,445.844 1,993,977.126 MT 0.99993009 -0 02 30.8 HS4606;SPC CA 3 - 2,124,161.91 6,541,906.62 sFT 0.99993009 -0 02 30.8 HS4606;UTM 10 - 4,189,578.165 713,998.537 MT 1.00016408 +1 29 30.7 HS4606 HS4606! - Elev Factor x Scale Factor = Combined Factor HS4606!SPC CA 3 - 0.99993176 x 0.99993009 = 0.99986186 HS4606!UTM 10 - 0.99993176 x 1.00016408 = 1.00009583 HS4606 HS4606: Primary Azimuth Mark Grid Az HS4606:SPC CA 3 - BIG HILL AZ MK 100 58 29.6 HS4606:UTM 10 - BIG HILL AZ MK 099 26 28.1 HS4606 HS4606|---------------------------------------------------------------------| HS4606| PID Reference Object Distance Geod. Az | HS4606| dddmmss.s | HS4606| DA8744 BIG HILL AZ MK 1005558.8 | HS4606| DA8745 BIG HILL RM 1 29.281 METERS 14504 | HS4606| DA8746 BIG HILL RM 2 17.162 METERS 23758 | HS4606| HS4605 BIG HILL LOOKOUT TOWER 22.040 METERS 28903 | HS4606| HS4607 1516 50.091 METERS 30559 | HS4606| DA8747 BIG HILL RM 3 21.267 METERS 31239 | HS4606|---------------------------------------------------------------------| HS4606 HS4606 SUPERSEDED SURVEY CONTROL HS4606 HS4606 NAD 83(1986)- 37 49 42.74923(N) 120 34 06.31293(W) AD(1984.00) 1 HS4606 NAD 27 - 37 49 43.00400(N) 120 34 02.58700(W) AD( ) 1 HS4606 NGVD 29 (07/26/91) 464.1 (m) 1523. (f) VERT ANG HS4606 HS4606.Superseded values are not recommended for survey control. HS4606.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. HS4606.See file dsdata.txt to determine how the superseded data were derived. HS4606 HS4606_U.S. NATIONAL GRID SPATIAL ADDRESS: 10SGG1399989578(NAD 83) HS4606_MARKER: Z = SEE DESCRIPTION HS4606_SETTING: 0 = UNSPECIFIED SETTING HS4606_STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY HS4606 HS4606 HISTORY - Date Condition Report By HS4606 HISTORY - 1931 MONUMENTED CGS HS4606 HISTORY - 1941 GOOD USGS HS4606 HISTORY - 1943 SEE DESCRIPTION CGS HS4606 HISTORY - 1945 GOOD USGS HS4606 HISTORY - 1955 SEE DESCRIPTION CGS HS4606 HISTORY - 1956 SEE DESCRIPTION CGS HS4606 HISTORY - 1959 GOOD USGS HS4606 HISTORY - 1972 SEE DESCRIPTION NGS HS4606 HISTORY - 1987 GOOD USPSQD HS4606 HS4606 STATION DESCRIPTION HS4606 HS4606'DESCRIBED BY COAST AND GEODETIC SURVEY 1931 (JB) HS4606'ABOUT 6 MILES E OF KNIGHTS FERRY, ON HIGH FLAT ROCK WHICH IS HS4606'HIGHEST POINT OF SMALL MOUNTAIN KNOWN AS BIG HILL, ON RANCH HS4606'BELONGING TO BILL RUSHING AND LEASED BY THE STATE, AND WITHIN HS4606'2 FEET OF POINT WHERE UNITED STATES GEOLOGICAL SURVEY CAIRN HS4606'FORMERLY STOOD. TO REACH FROM KNIGHTS FERRY, FOLLOW SONORA HS4606'ROAD 7.1 MILES TO GATE ON RIGHT IN FRONT OF RED HOUSE AND HS4606'SIGN RUSHING LOOKOUT 2 MILES, AND FOLLOW THIS ROAD TO LOOKOUT HS4606'AND STATION SITE. MARKED BY A BRONZE DISK SET IN DRILL HOLE HS4606'IN OUTCROPPING BEDROCK. REFERENCE MARKS ARE BRONZE DISKS SET HS4606'IN DRILL HOLES IN OUTCROPPING BEDROCK. NO. 1 IS 29.30 HS4606'METERS (96.1 FEET) FROM STATION IN AZIMUTH 325 DEG 05 MIN. HS4606'NO. 2 IS 17.19 METERS (56.4 FEET) FROM STATION IN AZIMUTH HS4606'57 DEG 57 MIN. BIG HILL, FIRE LOOKOUT, HOUSE, CENTER, IS HS4606'21.90 METERS (71.9 FEET) FROM THE STATION IN AZIMUTH 109 DEG HS4606'04 MIN. B.M. 1516 (U.S.G.S.) (SEE DESCRIPTION THEREOF) IS HS4606'50.09 METERS (164.3 FEET) FROM STATION IN AZIMUTH 125 HS4606'DEG 59 MIN. HS4606 HS4606 STATION RECOVERY (1941) HS4606 HS4606'RECOVERY NOTE BY US GEOLOGICAL SURVEY 1941 HS4606'RECOVERED AS DESCRIBED. ALL MARKS IN GOOD CONDITION. A BUILDING HS4606'HAS BEEN ERECTED ON LINE BETWEEN STATION MARK AND RM 1. HS4606 HS4606 STATION RECOVERY (1943) HS4606 HS4606'RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1943 (JCS) HS4606'STATION AND REFERENCE MARKS FOUND IN GOOD CONDITION. A HS4606'NEW REFERENCE MARK AND AZIMUTH MARK WERE ESTABLISHED. HS4606' HS4606'STATION IS LOCATED ABOUT 6.0 MILES ENE OF KNIGHTS FERRY, 20.0 HS4606'MILES NNW OF SNELLING ON A HIGH FLAT ROCK WHICH IS THE HIGHEST HS4606'POINT OF A SMALL MOUNTAIN KNOWN AS BIG HILL. STATION IS IN HS4606'THE PROPERTY OF BILL RUSHING AND IS 20.6 FEET NE OF THE NE HS4606'CORNER OF THE BIG HILL LOOKOUT HOUSE. HS4606' HS4606'STATION, STAMPED BIG HILL 1931, IS A U.S.C. AND G.S. BRONZE HS4606'DISK CEMENTED IN A DRILL HOLE IN OUTCROPPING ROCK. IT IS 12.6 HS4606'FEET NW OF THE SW CORNER OF PUMP HOUSE, AND 20.7 FEET NE OF HS4606'THE NE CORNER OF LOOKOUT HOUSE. HS4606' HS4606'REFERENCE MARK NO. 1, STAMPED BIG HILL NO. 1 1931 IS A U.S.C. HS4606'AND G.S. BRONZE DISK CEMENTED IN A DRILL HOLE IN OUTCROPPING HS4606'ROCK. IT IS 36.4 FEET S OF THE SE CORNER OF LOOKOUT HOUSE HS4606'AND ABOUT 5.0 FEET LOWER THAN THE STATION. HS4606' HS4606'REFERENCE MARK NO. 2, STAMPED BIG HILL NO. 2 1943, IS A U.S.C. HS4606'AND G.S. BRONZE DISK CEMENTED IN A DRILL HOLE IN OUTCROPPING HS4606'ROCK THAT IS ABOUT 5.0 FEET LOWER THAN THE STATION. IT IS HS4606'23.7 FEET S OF SE CORNER OF LOOKOUT HOUSE. HS4606' HS4606'REFERENCE MARK NO. 3, STAMPED BIG HILL NO. 3 1943, IS A U.S.C. HS4606'AND G.S. BRONZE DISK CEMENTED IN A DRILL HOLE IN OUTCROPPING HS4606'ROCK THAT PROJECTS ABOUT 5.0 FEET ABOVE THE GROUND. IT IS HS4606'28.4 FEET N OF THE NE CORNER OF LOOKOUT HOUSE AND 21.3 FEET HS4606'NE OF THE NE LEG OF LOOKOUT TOWER. HS4606' HS4606'AZIMUTH MARK, STAMPED BIG HILL 1943, IS A U.S.C. AND G.S. HS4606'BRONZE DISK CEMENTED IN A DRILL HOLE IN OUTCROPPING ROCK THAT HS4606'PROJECTS ABOUT 1.0 FOOT. IT IS 35.5 FEET N OF 3-FOOT OAK TREE, HS4606'AND 110.0 FEET E OF THE CENTER LINE OF ROAD. HS4606' HS4606'STATION IS REACHED AS FOLLOWS--FROM OAKDALE GO E ON CALIFORNIA HS4606'STATE HIGHWAY 120 FOR 12.0 MILES TO JUNCTION OF ROAD JUST S OF HS4606'KNIGHTS FERRY AT SIGN OAKDALE 12 - SONORA 24. CONTINUE E HS4606'ON HIGHWAY 120 FOR 6.8 MILES TO GATE AND RANCH ON THE RIGHT HS4606'(SE). TURN RIGHT (SE) THROUGH GATE AND FOLLOW MAIN-TRAVELED HS4606'ROAD FOR 1.7 MILES TO FORKS. (AZIMUTH MARK IS ON THE LEFT (E) HS4606'SIDE OF ROAD 35.5 FEET N OF 3-FOOT OAK TREE.) TAKE RIGHT FORK HS4606'AND CONTINUE 0.9 MILE TO TOP OF HILL AND STATION. HS4606' HS4606'1943 DISTANCES AND DIRECTIONS TO REFERENCE MARKS WERE CHECKED HS4606'AND ARE CORRECT. HS4606 HS4606 STATION RECOVERY (1945) HS4606 HS4606'RECOVERY NOTE BY US GEOLOGICAL SURVEY 1945 HS4606'RECOVERED AS DESCRIBED. ALL MARKS IN GOOD CONDITION. RMS HS4606'NOT OBSERVED. HS4606' HS4606'BIG HILL LOT--NOT DESCRIBED. HS4606 HS4606 STATION RECOVERY (1955) HS4606 HS4606'RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1955 (LSB) HS4606'THE STATION, REFERENCE MARKS 1, 2, 3, AZIMUTH MARK AND B.M. HS4606'1516 (USGS) WERE RECOVERED AND FOUND IN GOOD CONDITION. THE HS4606'1943 DATA WAS CHECKED, WITH THE FOLLOWING EXCEPTIONS--REFERENCE HS4606'MARK 1 IS NOW OBSTRUCTED BY A PUMP HOUSE AND GARAGE. A SLIGHT HS4606'DIFFERENCE IN THE DISTANCE TO R.M. 2 WAS FOUND AND THIS IS A HS4606'1931 MARK INSTEAD OF 1943. THE DIRECTION TO R.M. 3 DID NOT HS4606'CHECK WITH THE 1943 OBSERVATIONS. THE DISTANCE AND DIRECTION HS4606'TO B.M. 1516 (USGS) CHECKED THE 1931 DATA. THE FOLLOWING IS HS4606'AN ADAPTATION OF THE PREVIOUS DESCRIPTION WITH ANY CHANGES OR HS4606'ADDITIONS NOTED-- HS4606' HS4606'THE STATION IS LOCATED ABOUT 6 MILES EAST-NORTHEAST OF KNIGHTS HS4606'FERRY ON THE HIGHEST POINT OF A SMALL MOUNTAIN KNOWN AS BIG HS4606'HILL AND AT THE SITE OF THE BIG HILL FIRE LOOKOUT TOWER. THE HS4606'PROPERTY IS ON A RANCH OWNED BY BILL RUSHING AND LEASED BY HS4606'THE STATE. HS4606' HS4606'TO REACH FROM OAKDALE, FROM THE JUNCTION OF NORTH YOSEMITE HS4606'STREET AND STATE HIGHWAY 120 (EAST F STREET), GO EAST ON STATE HS4606'HIGHWAY 120 FOR 11.3 MILES TO THE TURN-OFF TO KNIGHTS FERRY HS4606'(SIGN, KNIGHTS FERRY 1). CONTINUE EASTERLY ON STATE HIGHWAY HS4606'120 FOR 1.7 MILES TO THE TUOLUMNE COUNTY LINE, CONTINUE FOR HS4606'5.2 MILES TO A GATE ON THE RIGHT, SOUTHEAST, LEADING TO RANCH HS4606'BUILDINGS. GO THROUGH GATE FOR ABOUT 100 FEET, THENCE TURN HS4606'LEFT THROUGH AN OPENING IN THE FENCE, THEN FOLLOW THE MAIN HS4606'ROAD SOUTHERLY FOR 1.5 MILES TO A SIDE ROAD LEFT AND THE HS4606'AZIMUTH MARK IN THE NORTHEAST ANGLE OF THE INTERSECTION. KEEP HS4606'RIGHT FORK AND CONTINUE UPHILL ON THE MAIN ROAD FOR 1 MILE HS4606'TO THE LOOKOUT TOWER AND THE STATION SITE. HS4606' HS4606'THE STATION MARK IS NOW SURROUNDED BY A SLAB OF CONCRETE (ABOUT HS4606'5 FEET SQUARE) WHICH IS THE BASE FOR A REMOVABLE WEATHER BOX. HS4606'IT IS IN THE APPROXIMATE CENTER AND FLUSH WITH THE CONCRETE. HS4606'12.6 FEET NORTH OF THE NORTHWEST CORNER OF THE PUMP HOUSE AND HS4606'20.3 FEET SOUTHEAST OF THE SOUTHEAST CORNER OF THE MAIN BUILDING. HS4606'THE MARK IS STAMPED BIG HILL 1931 AND WAS PREVIOUSLY CEMENTED HS4606'IN A DRILL HOLE IN ROCK OUTCROP. HS4606' HS4606'REFERENCE MARK 1, STAMPED BIG HILL NO 1 1931, IS CEMENTED HS4606'IN A DRILL HOLE IN ROCK OUTCROP ABOUT 5 FEET LOWER THAN THE HS4606'STATION. IT IS 12 PACES SOUTH OF THE SOUTH SIDE OF THE GARAGE. HS4606' HS4606'REFERENCE MARK 2, STAMPED BIG HILL NO 2 1931, IS CEMENTED HS4606'IN A DRILL HOLE IN ROCK OUTCROP PROJECTING ABOUT 1 FOOT AND HS4606'ABOUT 5 FEET LOWER THAN THE STATION. IT IS 25.6 FEET SOUTHWEST HS4606'OF THE SOUTHWEST CORNER OF THE MAIN BUILDING AND 51.8 FEET HS4606'SOUTH-SOUTHEAST OF THE SOUTHWEST LEG OF THE LOOKOUT TOWER. HS4606' HS4606'REFERENCE MARK 3, STAMPED BIG HILL NO 3 1943, IS CEMENTED IN HS4606'A DRILL HOLE IN ROCK OUTCROP PROJECTING ABOUT 6 FEET ABOVE HS4606'THE GROUND. IT IS 20.8 FEET NORTHEAST OF THE NORTHEAST LEG HS4606'OF THE LOOKOUT TOWER. HS4606' HS4606'THE AZIMUTH MARK, STAMPED BIG HILL 1943, IS CEMENTED IN A HS4606'DRILL HOLE IN ROCK OUTCROP PROJECTING ABOUT 6 INCHES. IT IS HS4606'35.5 FEET NORTH OF A 3-FOOT OAK TREE, 33 PACES EAST OF THE HS4606'CENTER OF THE NORTH-SOUTH ROAD AND 47 PACES NORTH OF THE SIDE HS4606'ROAD LEADING EAST OFF THE MAIN ROAD. HS4606' HS4606'ALL MARKS ARE STANDARD DISKS. HS4606' HS4606'BENCH MARK 1516 IS A STANDARD U.S. GEOLOGICAL SURVEY DISK HS4606'STAMPED VA 1516. IT IS CEMENTED IN A DRILL HOLE IN ROCK OUTCROP HS4606'PROJECTING ABOUT 5 FEET ABOVE THE GROUND. HS4606' HS4606'AN ECCENTRIC SET-UP WAS MADE IN ORDER TO MAKE OBSERVATIONS HS4606'ON STATION HOG HILL 1943. HS4606 HS4606 STATION RECOVERY (1956) HS4606 HS4606'RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1956 (NES) HS4606'THE STATION WAS RECOVERED AS DESCRIBED AND ALL MARKS WERE HS4606'IN GOOD CONDITION. THE ORIGINAL DESCRIPTION IS ADEQUATE. HS4606'R.M. NO. 1 IS NOW BEHIND A BUILDING. DIRECTION AND DISTANCE HS4606'WAS NOT MEASURED. HS4606 HS4606 STATION RECOVERY (1959) HS4606 HS4606'RECOVERY NOTE BY US GEOLOGICAL SURVEY 1959 HS4606'RECOVERED AS DESCRIBED. ALL MARKS IN GOOD CONDITION. RMS HS4606'NOT OBSERVED. HS4606 HS4606 STATION RECOVERY (1972) HS4606 HS4606'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1972 (RMB) HS4606'STATION MARK, AZIMUTH MARK AND REFERENCE MARKS 1, 2 AND 3 HS4606'FOUND AS DESCRIBED. ALL MEASUREMENTS CHECK WITH 1943 RECOVERY HS4606'NOTE EXCEPT REFERENCE MARK 1, WHICH COULD NOT BE CHECKED DUE HS4606'TO A BUILDING ON LINE. REVISED DESCRIPTION AS FOLLOWS-- HS4606' HS4606'THE STATION IS LOCATED ABOUT 6 MILES EAST-NORTHEAST OF KNIGHTS HS4606'FERRY ON THE HIGHEST POINT OF A SMALL MOUNTAIN KNOWN AS RUSHING HS4606'MOUNTAIN AND AT THE SITE OF THE CALIFORNIA DIVISION OF FORESTRY HS4606'LOOKOUT TOWER. HS4606' HS4606'TO REACH THE STATION FROM THE JUNCTION OF STATE ROUTES 108 HS4606'AND 120 (YOSEMITE JUNCTION), GO WESTERLY ON STATE ROUTE 120 HS4606'FOR 6.95 MILES TO A WIRE GATE ON THE LEFT BETWEEN TWO FARM HS4606'HOUSES ABOUT 1,000 FEET APART. PASS THROUGH THE GATE AND GO HS4606'50 FEET TO A CROSS ROAD. ANGLE EASTERLY THEN SOUTHERLY FOR HS4606'0.15 MILE TO A CATTLE GUARD AT A WIRE FENCE. CONTINUE ON HS4606'FOR 0.8 MILE TO A CATTLE GUARD AT A ROCK FENCE. CONTINUE HS4606'ON FOR 0.5 MILE TO THE AZIMUTH MARK 100 FEET LEFT OF THE HS4606'ROAD. GO STRAIGHT AHEAD 100 FEET TO A ROAD FORK. TAKE THE HS4606'RIGHT FORK FOR 0.25 MILE TO A ROAD FORK. TAKE RIGHT FORK HS4606'FOR 0.1 MILE TO A ROAD FORK. TAKE RIGHT FORK SOUTHERLY THEN HS4606'WESTERLY UP A RIDGE TO THE TOP OF THE HILL AND THE HS4606'STATION AT THE CALIFORNIA DIVISION OF FORESTRY LOOKOUT HS4606'TOWER, A DISTANCE OF 1.3 MILES. HS4606' HS4606'THE STATION MARK IS NOW SURROUNDED BY A SLAB OF CONCRETE HS4606'(ABOUT 5 FEET SQUARE) WHICH IS THE BASE FOR A REMOVABLE WEATHER HS4606'BOX. IT IS IN THE APPROXIMATE CENTER AND FLUSH WITH THE HS4606'CONCRETE. 20.3 FEET SOUTHEAST OF THE SOUTHEAST CORNER OF THE HS4606'MAIN BUILDING AND 12.6 FEET NORTH OF THE NORTHWEST CORNER HS4606'OF THE PUMP HOUSE. THE MARK IS STAMPED BIG HILL 1931 AND WAS HS4606'PREVIOUSLY CEMENTED IN A DRILL HOLE IN ROCK OUTCROP. HS4606' HS4606'REFERENCE MARK 1, STAMPED BIG HILL NO 1 1931, IS CEMENTED IN HS4606'A DRILL HOLE IN ROCK OUTCROP ABOUT 5 FEET LOWER THAN THE HS4606'STATION. IT IS 12 PACES SOUTH OF THE SOUTH SIDE OF THE GARAGE. HS4606' HS4606'REFERENCE MARK 2, STAMPED BIG HILL NO 2 1931, IS CEMENTED HS4606'IN A DRILL HOLE IN ROCK OUTCROP PROJECTING 1 FOOT ABOVE HS4606'GROUND AND IS 5 FEET LOWER THAN THE STATION. IT IS 51.8 FEET HS4606'SOUTH-SOUTHEAST OF THE SOUTHWEST LEG OF THE LOOKOUT TOWER HS4606'AND 25.6 FEET SOUTHWEST OF THE SOUTHWEST CORNER OF THE MAIN HS4606'BUILDING. HS4606' HS4606'REFERENCE MARK 3, STAMPED BIG HILL NO 3 1943, IS CEMENTED IN HS4606'A DRILL HOLE IN ROCK OUTCROP PROJECTING 6 FEET ABOVE GROUND HS4606'AND IS 20.8 FEET NORTHEAST OF THE NORTHEAST LEG OF THE LOOKOUT HS4606'TOWER. HS4606' HS4606'THE AZIMUTH MARK, STAMPED BIG HILL 1943, IS CEMENTED IN A HS4606'DRILL HOLE IN ROCK OUTCROP PROJECTING 0.5 FOOT ABOVE GROUND HS4606'AND IS 47 PACES NORTH OF THE DIRT ROAD CENTERLINE, 33 PACES HS4606'EAST OF THE TO REACH DIRT ROAD CENTERLINE AND 35.5 FEET NORTH HS4606'OF A 36 INCH OAK TREE. HS4606' HS4606'ALL MARKS ARE STANDARD DISKS. HS4606' HS4606'BENCH MARK 1516 IS A USGS BM BRASS DISK STAMPED VA 1516. HS4606'IT IS CEMENTED IN A DRILL HOLE IN ROCK OUTCROP PROJECTION HS4606'5 FEET ABOVE THE GROUND. HS4606' HS4606'AIRLINE DISTANCE AND DIRECTION FROM NEAREST TOWN--6 MILES HS4606'ENE OF KNIGHTS FERRY HS4606 HS4606 STATION RECOVERY (1987) HS4606 HS4606'RECOVERY NOTE BY US POWER SQUADRON 1987 (RJS) HS4606'RECOVERED IN GOOD CONDITION.