1 National Geodetic Survey, Retrieval Date = JUNE 2, 2003 GV0381 *********************************************************************** GV0381 DESIGNATION - S 265 GV0381 PID - GV0381 GV0381 STATE/COUNTY- VA/YORK GV0381 USGS QUAD - POQUOSON WEST (1983) GV0381 GV0381 *CURRENT SURVEY CONTROL GV0381 ___________________________________________________________________ GV0381* NAD 83(1986)- 37 08 43. (N) 076 29 27. (W) SCALED GV0381* NAVD 88 - 14.445 (meters) 47.39 (feet) ADJUSTED GV0381 ___________________________________________________________________ GV0381 GEOID HEIGHT- -35.98 (meters) GEOID99 GV0381 DYNAMIC HT - 14.434 (meters) 47.36 (feet) COMP GV0381 MODELED GRAV- 979,903.0 (mgal) NAVD 88 GV0381 GV0381 VERT ORDER - FIRST CLASS II GV0381 GV0381.The horizontal coordinates were scaled from a topographic map and have GV0381.an estimated accuracy of +/- 6 seconds. GV0381 GV0381.The orthometric height was determined by differential leveling GV0381.and adjusted by the National Geodetic Survey in June 1991. GV0381 GV0381.The geoid height was determined by GEOID99. GV0381 GV0381.The dynamic height is computed by dividing the NAVD 88 GV0381.geopotential number by the normal gravity value computed on the GV0381.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 GV0381.degrees latitude (g = 980.6199 gals.). GV0381 GV0381.The modeled gravity was interpolated from observed gravity values. GV0381 GV0381; North East Units Estimated Accuracy GV0381;SPC VA S - 1,092,000. 3,678,480. MT (+/- 180 meters Scaled) GV0381 GV0381 SUPERSEDED SURVEY CONTROL GV0381 GV0381 NGVD 29 - 14.801 (m) 48.56 (f) ADJUSTED 1 2 GV0381 GV0381.Superseded values are not recommended for survey control. GV0381.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. GV0381.See file dsdata.txt to determine how the superseded data were derived. GV0381 GV0381_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUG676120(NAD 83) GV0381_MARKER: DB = BENCH MARK DISK GV0381_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT GV0381_STAMPING: S 265 1942 GV0381_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO GV0381+STABILITY: SURFACE MOTION GV0381_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR GV0381+SATELLITE: SATELLITE OBSERVATIONS - May 01, 2003 GV0381 GV0381 HISTORY - Date Condition Report By GV0381 HISTORY - 1942 MONUMENTED CGS GV0381 HISTORY - 1962 GOOD CGS GV0381 HISTORY - 1974 GOOD LOCSUR GV0381 HISTORY - 20030501 GOOD GEOCAC GV0381 GV0381 STATION DESCRIPTION GV0381 GV0381'DESCRIBED BY COAST AND GEODETIC SURVEY 1962 GV0381'2.4 MI NE FROM ORIANA. GV0381'IN YORK COUNTY, 2.45 MILES NORTHEAST AND EAST ALONG STATE HIGHWAY GV0381'173 FROM THE CROSSING OF THE CHESAPEAKE AND OHIO RAILWAY AT GV0381'ORIANA, WARWICK COUNTY, AT THE JUNCTION OF A FARM DRIVE LEADING GV0381'NORTH, 22 FEET NORTH OF THE CENTERLINE OF THE HIGHWAY, 16 FEET GV0381'WEST OF THE CENTERLINE OF THE DRIVE, 68 FEET EAST OF A POLE, 1 GV0381'FOOT SOUTHWEST OF THE SOUTHWEST CORNER OF A BRICK GATEPOST AT THE GV0381'ENTRANCE TO THE DRIVE, AND LEVEL WITH THE HIGHWAY. GV0381 GV0381 STATION RECOVERY (1974) GV0381 GV0381'RECOVERY NOTE BY LOCAL SURVEYOR (INDIVIDUAL OR FIRM) 1974 GV0381'RECOVERED IN GOOD CONDITION. GV0381 GV0381 STATION RECOVERY (2003) GV0381 GV0381'RECOVERY NOTE BY GEOCACHING 2003 (RMA) GV0381'FARM DRIVE IS FOR KENTUCY FARMS STABLES. MARK IS SETTING SLIGHTLY GV0381'ABOVE GROUND LEVEL AT THE EDGE OF THE DRIVE AND IS BEING RUN OVER BY GV0381'CARS REGULARLY. 1 National Geodetic Survey, Retrieval Date = JUNE 2, 2003 GV4553 *********************************************************************** GV4553 DESIGNATION - YORKTOWN NW BASE GV4553 PID - GV4553 GV4553 STATE/COUNTY- VA/YORK GV4553 USGS QUAD - YORKTOWN (1994) GV4553 GV4553 *CURRENT SURVEY CONTROL GV4553 ___________________________________________________________________ GV4553* NAD 83(1993)- 37 13 41.36044(N) 076 30 20.83243(W) ADJUSTED GV4553* NAVD 88 - 19. (meters) 62. (feet) GPS OBS GV4553 ___________________________________________________________________ GV4553 X - 1,186,500.504 (meters) COMP GV4553 Y - -4,944,330.136 (meters) COMP GV4553 Z - 3,837,574.442 (meters) COMP GV4553 LAPLACE CORR- -4.30 (seconds) DEFLEC99 GV4553 ELLIP HEIGHT- -17.04 (meters) (06/04/02) GPS OBS GV4553 GEOID HEIGHT- -35.75 (meters) GEOID99 GV4553 GV4553 HORZ ORDER - FIRST GV4553 ELLP ORDER - FOURTH CLASS II GV4553 GV4553.The horizontal coordinates were established by classical geodetic methods GV4553.and adjusted by the National Geodetic Survey in September 1995. GV4553 GV4553.The orthometric height was determined by GPS observations and a GV4553.high-resolution geoid model. GV4553.No vertical observational check was made to the station. GV4553 GV4553.The X, Y, and Z were computed from the position and the ellipsoidal ht. GV4553 GV4553.The Laplace correction was computed from DEFLEC99 derived deflections. GV4553 GV4553.The ellipsoidal height was determined by GPS observations GV4553.and is referenced to NAD 83. GV4553 GV4553.The geoid height was determined by GEOID99. GV4553 GV4553; North East Units Scale Converg. GV4553;SPC VA S - 1,101,171.446 3,676,954.169 MT 0.99994834 +1 12 37.2 GV4553;UTM 18 - 4,121,245.005 366,418.228 MT 0.99981981 -0 54 40.0 GV4553 GV4553: Primary Azimuth Mark Grid Az GV4553:SPC VA S - S 339 50 00.1 GV4553:UTM 18 - S 341 57 17.3 GV4553 GV4553|---------------------------------------------------------------------| GV4553| PID Reference Object Distance Geod. Az | GV4553| dddmmss.s | GV4553| GV4534 NATIONAL CEMETERY FLAGPOLE 310.268 METERS 17630 | GV4553| DD5247 YORKTOWN NW BASE RM 1 28.905 METERS 23200 | GV4553| DD5248 YORKTOWN NW BASE RM 2 26.836 METERS 31429 | GV4553| GV0614 S APPROX. 1.2 KM 3410237.3 | GV4553|---------------------------------------------------------------------| GV4553 GV4553 SUPERSEDED SURVEY CONTROL GV4553 GV4553 ELLIP HT - -16.91 (m) (09/08/95) GP( ) 4 2 GV4553 NAD 83(1993)- 37 13 41.36116(N) 076 30 20.84100(W) AD( ) 1 GV4553 NAD 83(1986)- 37 13 41.37110(N) 076 30 20.86356(W) AD( ) 1 GV4553 NAD 27 - 37 13 40.84900(N) 076 30 22.03800(W) AD( ) 1 GV4553 NGVD 29 - 19.1 (m) 63. (f) GPS OBS GV4553 GV4553.Superseded values are not recommended for survey control. GV4553.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. GV4553.See file dsdata.txt to determine how the superseded data were derived. GV4553 GV4553_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUG6641821245(NAD 83) GV4553_MARKER: DS = TRIANGULATION STATION DISK GV4553_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT GV4553_STAMPING: YORKTOWN NW BASE 1949 GV4553_MARK LOGO: CGS GV4553_MAGNETIC: N = NO MAGNETIC MATERIAL GV4553_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO GV4553+STABILITY: SURFACE MOTION GV4553_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR GV4553+SATELLITE: SATELLITE OBSERVATIONS - April 21, 2003 GV4553 GV4553 HISTORY - Date Condition Report By GV4553 HISTORY - 1949 MONUMENTED CGS GV4553 HISTORY - 1949 GOOD CGS GV4553 HISTORY - 1952 GOOD CGS GV4553 HISTORY - 1967 GOOD CGS GV4553 HISTORY - 1974 GOOD LOCENG GV4553 HISTORY - 1986 GOOD USPSQD GV4553 HISTORY - 1987 GOOD USPSQD GV4553 HISTORY - 19881030 GOOD BSC GV4553 HISTORY - 19910417 GOOD NOS GV4553 HISTORY - 19920318 GOOD NOS GV4553 HISTORY - 20030421 GOOD INDIV GV4553 GV4553 STATION DESCRIPTION GV4553 GV4553'DESCRIBED BY COAST AND GEODETIC SURVEY 1949 (CAS) GV4553'STATION IS LOCATED ABOUT 1/2 MILE SE OF YORKTOWN ALONG U.S. GV4553'HIGHWAY 17. IT IS 153 FEET S OF CENTER OF STATE HIGHWAY 238 AND GV4553'101 FEET E OF CENTER OF U.S. HIGHWAY 17. GV4553' GV4553'STATION MARK IS A BRONZE STATION DISK SET IN CONCRETE, FLUSH GV4553'WITH THE GROUND, AND IS STAMPED YORKTOWN NW BASE 1949. GV4553' GV4553'UNDERGROUND MARK IS A BRONZE STATION DISK SET IN CONCRETE. GV4553' GV4553'REFERENCE MARK 1 IS A BRONZE REFERENCE DISK SET IN CONCRETE GV4553'FLUSH WITH THE GROUND, AND IS STAMPED YORKTOWN NW BASE NO 1 GV4553'1949. IT IS 31 FEET E OF CENTER LINE OF U.S. HIGHWAY 17. GV4553' GV4553'REFERENCE MARK 2 IS A BRONZE REFERENCE DISK SET IN CONCRETE, GV4553'FLUSH WITH THE GROUND, AND IS STAMPED YORKTOWN NW BASE NO 2 GV4553'1949. IT IS 33 FEET E OF CENTER LINE OF U.S. HIGHWAY 17. GV4553' GV4553'TO REACH FROM THE POST OFFICE ON THE SE EDGE OF YORKTOWN, GO GV4553'S AND E ON U.S. HIGHWAY 17 FOR 0.55 MILE TO JUNCTION OF HIGHWAY GV4553'238 AND STATION ON LEFT AS DESCRIBED. GV4553' GV4553'HEIGHT OF LIGHT ABOVE STATION MARK - 26 METERS. GV4553 GV4553 STATION RECOVERY (1949) GV4553 GV4553'RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1949 GV4553'RECOVERED IN GOOD CONDITION. GV4553 GV4553 STATION RECOVERY (1952) GV4553 GV4553'RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1952 (HAP) GV4553'STATION AND REFERENCE MARKS RECOVERED IN GOOD CONDITION. GV4553'DESCRIPTION IS COMPLETE AND ADEQUATE. GV4553 GV4553 STATION RECOVERY (1967) GV4553 GV4553'RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1967 (JCB) GV4553'STATION WAS RECOVERED AND ALL MARKS WERE FOUND TO BE IN GOOD GV4553'CONDITION. THE ORIGINAL DESCRIPTION IS ADEQUATE EXCEPT THE GV4553'STATION IS NOW AT THE JUNCTION OF STATE HIGHWAYS 238 AND 704 GV4553'AND A NEW TO REACH STATION DESCRIPTION FOLLOWS. GV4553' GV4553'TO REACH STATION FROM THE POST OFFICE IN YORKTOWN GO GV4553'SOUTHEASTERLY ON STATE ROAD 238 FOR 0.9 MILE TO SIDE ROAD RIGHT GV4553'AND STATION AS DESCRIBED. GV4553' GV4553'AIRLINE DISTANCE AND DIRECTION FROM NEAREST TOWN--1/2 MILE GV4553'SOUTHEAST OF YORKTOWN. GV4553 GV4553 STATION RECOVERY (1974) GV4553 GV4553'RECOVERY NOTE BY LOCAL ENGINEER (INDIVIDUAL OR FIRM) 1974 (JB) GV4553'YORKTOWN NW BASE RECOVERED IN GOOD CONDITION. GV4553'RM 1 AND RM 2 ALSO WERE RECOVERED IN GOOD CONDITION. GV4553' GV4553'DISTANCE AND DIRECTION FROM NEAREST TOWN--AT YORKTOWN. GV4553 GV4553 STATION RECOVERY (1986) GV4553 GV4553'RECOVERY NOTE BY US POWER SQUADRON 1986 (VHF) GV4553'RECOVERED IN GOOD CONDITION. GV4553 GV4553 STATION RECOVERY (1987) GV4553 GV4553'RECOVERY NOTE BY US POWER SQUADRON 1987 (VHF) GV4553'RECOVERED IN GOOD CONDITION. GV4553 GV4553 STATION RECOVERY (1988) GV4553 GV4553'RECOVERY NOTE BY THE BSC GROUP, INCORPORATED 1988 GV4553'RECOVERED IN GOOD CONDITION. GV4553 GV4553 STATION RECOVERY (1991) GV4553 GV4553'RECOVERY NOTE BY NATIONAL OCEAN SERVICE 1991 GV4553'THE STATION IS LOCATED ABOUT 2.6 MI (4.18 KM) SE OF YORKTOWN ON GV4553'THE GROUNDS OF THE YORKTOWN NATIONAL BATTLEFIELD AND NEAR THE T GV4553'INTERSECTION OF STATE HIGHWAYS 1020 AND 238. GV4553'$ GV4553'TO REACH THE STATION FROM THE TOWN HALL AT YORKTOWN AT THE GV4553'INTERSECTION OF MAIN AND BALLARD STREETS, GO SOUTH AND SE ON BALLARD GV4553'STREET (STATE HIGHWAY 1020) FOR 1.6 MI (2.57 KM) TO A T GV4553'INTERSECTION WITH VA. HIGHWAY 238. CROSS INTERSECTION AND PULL OFF GV4553'ON RIGHT TO STATION ON RIGHT. GV4553'$ GV4553'STATION IS MARKED BY A STANDARD CGS TRIANGULATION DISK GV4553'STAMPED---YORKTOWN NW BASE 1949---SET IN A CONCRETE MONUMENT THAT IS GV4553'SUBMERGED 0.005 M (0.016 FT) . IT IS 66.5 M (218.18 FT) SOUTH OF THE GV4553'CENTERLINE OF T INTERSECTION OF STATE HIGHWAYS 238 AND 1020, 46.8 M GV4553'(153.54 FT) SW OF THE CENTERLINE OF 238 WHERE IT IS NW-SE, 30.7 M GV4553'(100.72 FT) SE OF CENTERLINE OF 238 WHERE IT IS NE-SW, AND 26.45 M GV4553'(86.78 FT) EAST OF CENTER OF A CULVERT HEADWALL. GV4553'$ GV4553'DESCRIBED BY P.B. WALBOLT. GV4553 GV4553 STATION RECOVERY (1992) GV4553 GV4553'RECOVERY NOTE BY NATIONAL OCEAN SERVICE 1992 GV4553'RECOVERED IN GOOD CONDITION. GV4553 GV4553 STATION RECOVERY (2003) GV4553 GV4553'RECOVERY NOTE BY INDIVIDUAL CONTRIBUTORS 2003 GV4553'RECOVERED BY COMPASSCOM, INC.