National Geodetic Survey,   Retrieval Date = JULY 13, 2000
 AC5593 ***********************************************************************
 AC5593  DESIGNATION -  COMMISSIONERS ROCK
 AC5593  PID         -  AC5593
 AC5593  STATE/COUNTY-  SC/OCONEE
 AC5593  USGS QUAD   -  CASHIERS (1991)
 AC5593
 AC5593                         *CURRENT SURVEY CONTROL
 AC5593  ___________________________________________________________________
 AC5593* NAD 83(1986)-  35 00 04.88130(N)    083 06 30.84455(W)     ADJUSTED
 AC5593* NAVD 88     -       655.0    (meters)    2149.     (feet)  H LEVEL
 AC5593  ___________________________________________________________________
 AC5593  LAPLACE CORR-          -6.15  (seconds)                    DEFLEC99
 AC5593  GEOID HEIGHT-         -29.64  (meters)                     GEOID99
 AC5593
 AC5593  HORZ ORDER  -  FIRST
 AC5593
 AC5593.The North Carolina/South Carolina HARNS have been completed but,
 AC5593.due to contractual restrictions, coordinates for these stations
 AC5593.will NOT be published in the near future. In the interim, the
 AC5593.published coordinates in North and South Carolina will not be
 AC5593.consistent with the Continuously Operating Reference Stations
 AC5593.(CORS). The HARN coordinates for these stations are available
 AC5593.upon request. Contact Gary Thompson(919-733-3836), or Lewis
 AC5593.Lapine(803-896-7700).
 AC5593.
 AC5593.In addition, the published North and South Carolina positions
 AC5593.(NAD 83 (1986)) are NOT consistent with those determined in
 AC5593.adjacent state readjustments. The discontinuity between stations
 AC5593.located in North or South Carolina and those in adjacent states
 AC5593.which have been adjusted to the HARN may be as much as 5
 AC5593.decimeters. This will result in a significant loss of accuracy
 AC5593.over lines crossing such state borders.
 AC5593
 AC5593
 AC5593.The horizontal coordinates were established by classical geodetic methods
 AC5593.and adjusted by the National Geodetic Survey in December 1996.
 AC5593
 AC5593.The orthometric height was determined by differential leveling
 AC5593.between control points not connected to bench marks.
 AC5593
 AC5593.The Laplace correction was computed from DEFLEC99 derived deflections.
 AC5593
 AC5593.The geoid height was determined by GEOID99.
 AC5593
 AC5593;                    North         East     Units   Scale      Converg.
 AC5593;SPC SC       - 1,159,155.96  1,368,493.74   iFT  1.00006407 -1 10 08.4
 AC5593;SPC SC       -   353,310.737   417,116.891   MT  1.00006407 -1 10 08.4
 AC5593;UTM  17      - 3,875,224.907   307,577.883   MT  1.00005635 -1 12 35.4
 AC5593
 AC5593                          SUPERSEDED SURVEY CONTROL
 AC5593
 AC5593.No superseded survey control is available for this station.
 AC5593
 AC5593_MAGNETIC: N = NO MAGNETIC MATERIAL
 AC5593_STABILITY: A = MOST RELIABLE AND EXPECTED TO HOLD
 AC5593+STABILITY: POSITION/ELEVATION WELL
 AC5593_SATELLITE: THE SITE LOCATION WAS REPORTED AS NOT SUITABLE FOR
 AC5593+SATELLITE: SATELLITE OBSERVATIONS - April 07, 1996
 AC5593
 AC5593  HISTORY     - Date     Condition        Recov. By
 AC5593  HISTORY     - 1813     MONUMENTED       NCSCSB
 AC5593  HISTORY     - 19960407 GOOD             SCGS
 AC5593
 AC5593                          STATION DESCRIPTION
 AC5593
 AC5593'DESCRIBED BY SOUTH CAROLINA GEODETIC SURVEY 1996 (DDW)
 AC5593'STATION IS LOCATED 16.6 MILES (26.7 KM) NORTH NORTHWEST OF WALHALLA,
 AC5593'10.8 MILES (17.4 KM) NORTHWEST OF SALEM.  OWNERSHIP--U.S.  NATIONAL
 AC5593'FOREST PROPERTY.  TO REACH THE STATION FROM THE JUNCTION OF STATE
 AC5593'HIGHWAYS 28 (HIGHLANDS HIGHWAY), 107 (STATE PARK ROAD) AND BUFFWHALO
 AC5593'ROAD, 2.7 MILES (4.3 KM) NORTHWEST OF WALHALLA, GO NORTH NORTHEAST ON
 AC5593'HIGHWAY 107 FOR 3.0 MILES (4.8 KM) TO THE JUNCTION OF MARY T WYATT
 AC5593'DRIVE (STATE ROAD 82) LEFT AND STATION MOUNTAIN ROAD RIGHT, CONTINUE
 AC5593'ON HIGHWAY 107 FOR 7.25 MILES (11.67 KM) TO BURRELLS FORD ROAD LEFT
 AC5593'(GRAVEL ROAD), TURN LEFT ON BURRELLS FORD ROAD FOR 2.35 MILES (3.78
 AC5593'KM) TO BURRELLS FORD CAMPGROUND LEFT, BEAR RIGHT ON THE MAIN ROAD FOR
 AC5593'0.45 MILE (0.72 KM) TO EAST SIDE OF THE CONCRETE BRIDGE OVER THE
 AC5593'CHATTOOGA RIVER, THE TRAIL NORTH TO COMMISSIONERS ROCK AND ELLICOTTS
 AC5593'ROCK STARTS ABOUT 350 FEET (106.7 M) EAST OF THE BRIDGE, PROCEED
 AC5593'NORTHWEST BY FOOT ALONG THE CHATTOOGA RIVER TRAIL FOR 1.5 MILES (2.4
 AC5593'KM) TO A WELL-BUILT BRIDGE THAT CROSSES EAST FORK, GO LEFT AFTER
 AC5593'CROSSING THE BRIDGE ALONG THE TRAIL FOR 1.7 MILES (2.7 KM) TO THE
 AC5593'STATION IN ROCK OUTCROP ABOUT 10 FEET (3.0 M) BELOW THE TRAIL AND ON
 AC5593'THE EAST BANK OF THE CHATTOOGA RIVER.  COMMISSIONERS ROCK HAS CHISELED
 AC5593'INSCRIPTION (LAT 35, AD 1813, NC+SC).  STATION IS A CHISELED PLUS SIGN
 AC5593'BETWEEN NC AND SC, 37.0 FEET (11.3 M) EAST NORTHEAST OF HORIZONTAL
 AC5593'STATION CHATTOOGA ROCK (LARGE BOULDER ON THE EAST SIDE OF
 AC5593'COMMISSIONERS ISLAND IN THE RIVER).  THIS STATION WAS ESTABLISHED IN
 AC5593'1813 BY THE NORTH CAROLINA-SOUTH CAROLINA COMMISSIONERS AS WEST END
 AC5593'POINT OF THE STATE LINE.  ELLICOTTS ROCK HAS A CHISELED (NG).  IT IS
 AC5593'15.1 FEET (4.6 M) FEET NORTH OF COMMISSIONERS ROCK (MEASURED FROM THE
 AC5593'PLUS SIGN ON COMMISSIONERS ROCK TO A MIDPOINT BETWEEN THE N AND G ON
 AC5593'ELLICOTTS ROCK).  RECOVERED BY ALAN-JON ZUPAN.