1 National Geodetic Survey, Retrieval Date = SEPTEMBER 7, 2005 JT9432 *********************************************************************** JT9432 DESIGNATION - LYTTON RESET JT9432 PID - JT9432 JT9432 STATE/COUNTY- CA/SONOMA JT9432 USGS QUAD - JIMTOWN (1993) JT9432 JT9432 *CURRENT SURVEY CONTROL JT9432 ___________________________________________________________________ JT9432* NAD 83(1992)- 38 39 28.43779(N) 122 52 18.49442(W) ADJUSTED JT9432* NAVD 88 - 57.270 (meters) 187.89 (feet) ADJUSTED JT9432 ___________________________________________________________________ JT9432 EPOCH DATE - 1991.35 JT9432 LAPLACE CORR- 2.57 (seconds) DEFLEC99 JT9432 GEOID HEIGHT- -30.78 (meters) GEOID03 JT9432 DYNAMIC HT - 57.236 (meters) 187.78 (feet) COMP JT9432 MODELED GRAV- 980,031.2 (mgal) NAVD 88 JT9432 JT9432 HORZ ORDER - THIRD JT9432 VERT ORDER - FIRST CLASS II JT9432 JT9432.The horizontal coordinates were established by classical geodetic methods JT9432.and adjusted by the National Geodetic Survey in March 1994. JT9432.The horizontal coordinates are valid at the epoch date displayed above. JT9432.The epoch date for horizontal control is a decimal equivalence JT9432.of Year/Month/Day. JT9432 JT9432.The orthometric height was determined by differential leveling JT9432.and adjusted by the National Geodetic Survey in June 1991. JT9432 JT9432.The Laplace correction was computed from DEFLEC99 derived deflections. JT9432 JT9432.The geoid height was determined by GEOID03. JT9432 JT9432.The dynamic height is computed by dividing the NAVD 88 JT9432.geopotential number by the normal gravity value computed on the JT9432.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 JT9432.degrees latitude (g = 980.6199 gals.). JT9432 JT9432.The modeled gravity was interpolated from observed gravity values. JT9432 JT9432; North East Units Scale Factor Converg. JT9432;SPC CA 2 - 610,396.448 1,924,121.986 MT 0.99994224 -0 32 58.7 JT9432;SPC CA 2 - 2,002,609.01 6,312,723.55 sFT 0.99994224 -0 32 58.7 JT9432;UTM 10 - 4,278,822.220 511,153.974 MT 0.99960153 +0 04 48.3 JT9432 JT9432! - Elev Factor x Scale Factor = Combined Factor JT9432!SPC CA 2 - 0.99999584 x 0.99994224 = 0.99993808 JT9432!UTM 10 - 0.99999584 x 0.99960153 = 0.99959737 JT9432 JT9432: Primary Azimuth Mark Grid Az JT9432:SPC CA 2 - LYTTON AZ MK 166 31 06.6 JT9432:UTM 10 - LYTTON AZ MK 165 53 19.6 JT9432 JT9432|---------------------------------------------------------------------| JT9432| PID Reference Object Distance Geod. Az | JT9432| dddmmss.s | JT9432| DB4758 LYTTON RM 3 7.948 METERS 09432 | JT9432| DB4757 LYTTON RM 1 7.949 METERS 09453 | JT9432| DB4756 LYTTON AZ MK 1655807.9 | JT9432| JT1966 LYTTON RM 2 6.852 METERS 18308 | JT9432|---------------------------------------------------------------------| JT9432 JT9432 SUPERSEDED SURVEY CONTROL JT9432 JT9432 NAD 83(1986)- 38 39 28.43453(N) 122 52 18.47882(W) AD( ) 3 JT9432 NGVD 29 (12/02/92) 56.400 (m) 185.04 (f) ADJUSTED 1 2 JT9432 JT9432.Superseded values are not recommended for survey control. JT9432.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JT9432.See file dsdata.txt to determine how the superseded data were derived. JT9432 JT9432_U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH1115478822(NAD 83) JT9432_MARKER: DS = TRIANGULATION STATION DISK JT9432_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT JT9432_SP_SET: CONCRETE POST JT9432_STAMPING: LYTTON 1949 1969 JT9432_MARK LOGO: CGS JT9432_PROJECTION: FLUSH JT9432_MAGNETIC: O = OTHER; SEE DESCRIPTION JT9432_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO JT9432+STABILITY: SURFACE MOTION JT9432_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR JT9432+SATELLITE: SATELLITE OBSERVATIONS - June 14, 2005 JT9432 JT9432 HISTORY - Date Condition Report By JT9432 HISTORY - 1969 MONUMENTED CGS JT9432 HISTORY - 1970 GOOD NGS JT9432 HISTORY - 1974 GOOD NGS JT9432 HISTORY - 1975 GOOD NGS JT9432 HISTORY - 19840712 GOOD NGS JT9432 HISTORY - 1989 GOOD NGS JT9432 HISTORY - 20050614 GOOD CADF JT9432 JT9432 STATION DESCRIPTION JT9432 JT9432'DESCRIBED BY COAST AND GEODETIC SURVEY 1969 (RMS) JT9432'THE AZIMUTH MARK SET IN 1959 WAS RECOVERED IN GOOD CONDITION. JT9432'REFERENCE MARK 2 WAS FOUND IN GOOD CONDITION AND SOLID IN THE JT9432'GROUND ALTHOUGH ONE CORNER OF THE CONCRETE POST HAS BEEN JT9432'CHIPPED OFF AND THE MARK IS TILTED SLIGHTLY TO THE EAST. THE JT9432'TOP OF THE REFERENCE MARK 1 CONCRETE POST WAS FOUND BROKEN OFF JT9432'AND THE SURFACE-STATION MARK WAS FOUND LYING ON TOP OF THE JT9432'GROUND. THE UNDERGROUND-STATION MARK WAS RECOVERED IN GOOD JT9432'CONDITION SO THE SURFACE-STATION MARK WAS RESTAMPED AND JT9432'RESET BACK IN PLACE DIRECTLY OVER IT. REFERENCE MARK 3 JT9432'WAS ALSO SET ON THIS DATE. THE PREVIOUS DESCRIPTIONS ARE JT9432'ADEQUATE WITH THE FOLLOWING ADDITIONS-- JT9432' JT9432'THE SURFACE-STATION MARK SET ON THIS DATE IS A COAST AND GEODETIC JT9432'SURVEY TRIANGULATION STATION DISK STAMPED LYTTON 1946 1969 SET JT9432'IN THE TOP OF A 12-INCH SQUARE CONCRETE POST PROJECTING 0.4 JT9432'FOOT ABOVE THE GROUND AND IS 45.5 FEET WEST OF THE WEST RAIL JT9432'OF THE RAILROAD TRACK, 27 FEET SOUTH OF THE CENTERLINE OF LYTTON JT9432'STATION ROAD, AND 2.3 FEET SOUTH OF A METAL WITNESS POST. JT9432' JT9432'REFERENCE MARK 2 IS 51.6 FEET WEST OF THE WEST RAIL OF THE JT9432'RAILROAD TRACK. JT9432' JT9432'REFERENCE MARK 3 IS A COAST AND GEODETIC SURVEY REFERENCE JT9432'MARK DISK STAMPED LYTTON 1946 NO 3 1969 CEMENTED IN A DRILL JT9432'HOLE IN THE TOP OF A 12-INCH SQUARE CONCRETE POST FLUSH WITH JT9432'THE GROUND AND IS 25 FEET SOUTH OF THE CENTERLINE OF THE JT9432'ROAD, 24.8 FEET WEST OF THE WEST RAIL OF THE RAILROAD TRACK, JT9432'9.4 FEET SOUTHWEST OF A 5 X 5-INCH WOODEN RAILROAD CROSSING JT9432'SIGN POST, AND ABOUT 1/2 FOOT LOWER THAN THE STATION MARK. JT9432 JT9432 STATION RECOVERY (1970) JT9432 JT9432'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1970 (LS) JT9432'THE STATION MARK, 1959 AZIMUTH MARK, AND REFERENCE MARKS 2 AND JT9432'3 WERE RECOVERED IN GOOD CONDITION AND THE PREVIOUS DESCRIPTIONS JT9432'ARE ADEQUATE. JT9432 JT9432 STATION RECOVERY (1974) JT9432 JT9432'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1974 (RDM) JT9432'THE STATION MARK REFERENCE MARKS 1 AND 2 AND THE AZIMUTH MARK WERE JT9432'FOUND IN GOOD CONDITION AND THE PREVIOUS RECOVERY NOTE OF 1959 IS JT9432'ADEQUATE WITH THE FOLLOWING CHANGES. JT9432' JT9432'THERE NO LONGER IS A VILLAGE OF LYTTON OR A RAILROAD STATION. JT9432' JT9432'THE ROAD THAT USED TO PASS THROUGH THE VILLAGE IS OBLITERATED AND JT9432'A NEW ROAD (PARALLEL TO THE OLD ROAD) THAT MAKES A CONNECTION WITH JT9432'HIGHWAY 101 PASSES APPROXIMATELY 400 FEET + OR - NORTH-NORTHWEST JT9432'OF THE STATION MARK. JT9432' JT9432'THERE IS A GRAVEL OVERLAY WHERE THE OLD ROAD THROUGH THE VILLAGE JT9432'USED TO BE. JT9432' JT9432'STATION WAS OCCUPIED BY LIGHTKEEPER ONLY. JT9432' JT9432'AIRLINE DISTANCE AND DIRECTION FROM NEAREST TOWN JT9432'3 MILES NORTH OF HEALDSBURG. JT9432 JT9432 STATION RECOVERY (1975) JT9432 JT9432'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1975 (RRG) JT9432'3.85 MILES NORTH ALONG THE NORTHWESTERN PACIFIC RAILROAD FROM THE JT9432'STATION AT HEALDSBURG, 5 POLES SOUTH OF MILE POLE NO. 72, 0.1 JT9432'MILE SOUTH OF A ROAD CROSSING, 115 FEET NORTHWEST OF THE 6TH POLE JT9432'SOUTH OF MILE POST 72, 97 FEET SOUTHWEST OF THE 5TH POLE SOUTH OF JT9432'MILE POLE NO. 72, 108 FEET WEST OF AND ACROSS THE TRACK FROM THE JT9432'CENTERLINE OF LYTTON STATION ROAD, 46.0 FEET WEST OF THE WEST JT9432'RAIL OF TRACK, 22.7 FEET NORTH NORTHEAST OF LYTTON RM 2, 12.0 FT. JT9432'SOUTHWEST OF A 2 INCH IRON PIPE THAT PROJECTS 7 FEET, 2.4 FEET JT9432'SOUTH OF A METAL WITNESS POST. A DISK ON TOP OF A CONCRETE POST JT9432'PROJECTING 0.4 OF A FOOT AND ABOUT LEVEL WITH THE TRACK. NOTE, JT9432'THE CORNERS OF THE CONCRETE POST ARE CHIPPED BUT THE MARK IS JT9432'SOLID. JT9432 JT9432 STATION RECOVERY (1984) JT9432 JT9432'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1984 (CLN) JT9432'THE STATION MARK, REFERENCE MARK 2 AND THE AZIMUTH MARK WERE RECOVERED JT9432'IN GOOD CONDITION. REFERENCE MARK 3 POST WAS FOUND OUT OF THE GROUND JT9432'WITH ONLY THE STEM REMAINING IN THE POST. THE STATION IS LOCATED JT9432'ABOUT 6.4 KM (3.95 MI) SOUTH-SOUTHEAST OF GEYSERVILLE, 4.8 KM (3.00 JT9432'MI) NORTH OF HEALDSBURG, AT THE WEST EDGE OF THE UNINCORPORATED JT9432'VILLAGE OF LYTTON, 170 METERS (557.7 FT) SOUTH LYTTON SPRINGS ROAD, 61 JT9432'METERS (200.1 FT) WEST OF AND ACROSS HEALDSBURG ROAD FROM RESIDENCE JT9432'NUMBER 17720, ALONG THE WEST SIDE OF A RAILROAD TRACK. TO REACH THE JT9432'STATION FROM THE HEALDSBURG EXIT FROM U.S. HIGHWAY 101, GO NORTH ON JT9432'101 F0R 6.4 KM (3.95 MI) TO LYTTON SPRINGS ROAD AND ALEXANDER VALLEY JT9432'ROAD EXIT. EXIT RIGHT, TURN RIGHT, EAST ON LYTTON SPRINGS ROAD FOR JT9432'0.4 KM (0.25 MI) TO A T-JUNCTION. TURN RIGHT, SOUTH ON HEALDSBURG JT9432'ROAD FOR 0.1 MI (0.2 KM) TO RESIDENCE 17720 ON THE LEFT AND THE JT9432'STATION ON THE RIGHT, WEST SIDE OF THE ROAD. THE STATION IS A STANDARD JT9432'CGS DISK STAMPED--LYTTON 1949 1969--, SET INTO THE TOP OF A SQUARE JT9432'CONCRETE MONUMENT, 30 CM IN DIAMETER ON SIDE PROJECTING 12 CM ABOVE JT9432'THE GROUND. LOCATED 64 METERS (210.0 FT) NORTH FROM A CORNER POST AT A JT9432'FENCE OFFSET, 13.9 METERS (45.6 FT) WEST FROM THE WEST RAIL AND 8.2 JT9432'METERS (26.9 FT) SOUTH FROM THE CENTER OF AN ABANDONED ROAD BED. THE JT9432'UNDERGROUND MARK IS A STANDARD CGS DISK STAMPED--LYTTON 1949--, JT9432'IMBEDDED IN A MASS OF CONCRETE, 1 METER BELOW THE SURFACE. REFERENCE JT9432'MARK NO 2 IS A STANDARD CGS DISK, STAMPED--LYTTON 1949 RM 2--, SET JT9432'INTO THE TOP OF A SQUARE CONCRETE MONUMENT, 30 CM IN DIAMETER JT9432'PROJECTING 8 CM ABOVE THE GROUND. LOCATED 15.4 METERS (50.5 FT) SOUTH JT9432'FROM THE CENTER OF THE ABANDONED ROAD BED, 16.7 METERS (54.8 FT) WEST JT9432'FROM THE CENTER OF THE RAILROAD AND 15.7 METERS (51.5 FT) WEST FROM JT9432'THE WEST RAIL. REFERENCE MARK 4 IS A STANDARD NGS DISK, JT9432'STAMPED--LYTTON 1949 NO 4 1985--, SET INTO THE TOP OF A ROUND CONCRETE JT9432'MONUMENT, 30 CM IN DIAMETER PROJECTING 15 CM ABOVE THE GROUND. JT9432'LOCATED 20.7 METERS (67.9 FT) WEST FROM THE WEST RAIL OF THE TRACKS, JT9432'8.2 METERS (26.9 FT) SOUTH FROM THE CENTER OF AN ABANDONED ROAD AND 64 JT9432'METERS (210.0 FT) NORTH FROM A CORNER POST AT A FENCE OFFSET. JT9432'REFERENCE MARK 5, IS A STANDARD CADH DISK, STAMPED--D 106 CADH--, SET JT9432'INTO THE TOP OF A 15 CM SQUARE POST THAT PROJECTS 15 CM. LOCATED 105 JT9432'METERS (344.5 FT) WEST FROM AND ACROSS HEALDSBURG ROAD FROM RESIDENCE JT9432'NUMBER 17720, 100 METERS (328.1 FT) NORTH FROM A FENCE CORNER AT A JT9432'FENCE OFFSET AND 0.3 METER (1.0 FT) EAST FROM A FENCE. AZIMUTH MARK 2 JT9432'IS A STANDARD CGS DISK STAMPED--LYTTON 1949 RESET 1959--, SET INTO THE JT9432'TOP OF THE SOUTH END OF THE WEST HEADWALL OF A CONCRETE CULVERT UNDER JT9432'THE RAILROAD TRACKS. LOCATED 5.21 METERS (17.09 FT) WEST FROM THE JT9432'WEST RAIL, 6.04 METERS (19.82 FT) EAST FROM A FENCELINE AND 18.3 JT9432'METERS (60.0 FT) SOUTHEAST FROM A WELL. TO REACH THE AZIMUTH MARK JT9432'FROM THE STATION GO SOUTH ON HEADSBURG ROAD FOR 0.3 KM (0.20 MI) TO A JT9432'BRIDGE AND THE AZIMUTH MARK ON THE RIGHT, ACCROSS THE RAILROAD TRACKS. JT9432'AZIMUTH MARK 3 IS A RIVET INSCRIBED-- RV 147--, IN THE TOP OF THE JT9432'NORTH END OF THE WEST HEADWALL OF A CONCRETE CULVERT UNDER THE TRACKS. JT9432 JT9432 STATION RECOVERY (1989) JT9432 JT9432'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1989 JT9432'6.3 KM (3.90 MI) SE FROM GEYSERVILLE. JT9432'6.3 KM (3.90 MI) SOUTHEASTERLY ALONG THE NORTHWESTERN PACIFIC RAILROAD JT9432'FORM THE JUNCTION OF STATE HIGHWAY 128 IN GEYSERVILLE, 13.9 M JT9432'(45.6 FT) WEST OF THE NEAR RAIL, 6.9 M (22.6 FT) NORTH OF REFERENCE JT9432'MARK 2, 6.8 M (22.3 FT) EAST OF REFERENCE MARK 1, AND 0.6 M (2.0 FT) JT9432'SOUTH OF A WITNESS POST. JT9432'THE MARK IS 0.5 METERS NW FROM A WITNESS POST JT9432'THE MARK IS ABOVE LEVEL WITH THE TRACKS. JT9432 JT9432 STATION RECOVERY (2005) JT9432 JT9432'RECOVERY NOTE BY CALIFORNIA DEPARTMENT OF FORESTRY 2005 (JD) JT9432'RECOVERED IN GOOD CONDITION.