HL0426 ***********************************************************************
HL0426  DESIGNATION -  H 439
HL0426  PID         -  HL0426
HL0426  STATE/COUNTY-  CO/SAN JUAN
HL0426  USGS QUAD   -  SILVERTON (1984)
HL0426
HL0426                         *CURRENT SURVEY CONTROL
HL0426  ___________________________________________________________________
HL0426* NAD 83(1986)-  37 49 10.     (N)    107 42 17.     (W)     SCALED
HL0426* NAVD 88     -      2900.647  (meters)    9516.54   (feet)  ADJUSTED
HL0426  ___________________________________________________________________
HL0426  GEOID HEIGHT-         -15.45  (meters)                     GEOID99
HL0426  DYNAMIC HT  -        2896.438 (meters)    9502.73  (feet)  COMP
HL0426  MODELED GRAV-     979,074.0   (mgal)                       NAVD 88
HL0426
HL0426  VERT ORDER  -  FIRST     CLASS II
HL0426
HL0426.The horizontal coordinates were scaled from a topographic map and have
HL0426.an estimated accuracy of +/- 6 seconds.
HL0426
HL0426.The orthometric height was determined by differential leveling
HL0426.and adjusted by the National Geodetic Survey in June 1991.
HL0426
HL0426.The geoid height was determined by GEOID99.
HL0426
HL0426.The dynamic height is computed by dividing the NAVD 88
HL0426.geopotential number by the normal gravity value computed on the
HL0426.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45
HL0426.degrees latitude (G = 980.6199 gals.).
HL0426
HL0426.The modeled gravity was interpolated from observed gravity values.
HL0426
HL0426;                    North         East    Units  Estimated Accuracy
HL0426;SPC CO S     -   435,030.      720,310.      MT  (+/- 180 meters Scaled)
HL0426
HL0426                          SUPERSEDED SURVEY CONTROL
HL0426
HL0426.No superseded survey control is available for this station.
HL0426
HL0426_MARKER: DB = BENCH MARK DISK
HL0426_SETTING: 66 = SET IN ROCK OUTCROP
HL0426_STAMPING: H 439 1985
HL0426_STABILITY: A = MOST RELIABLE AND EXPECTED TO HOLD
HL0426+STABILITY: POSITION/ELEVATION WELL
HL0426
HL0426  HISTORY     - Date     Condition        Recov. By
HL0426  HISTORY     - 1985     MONUMENTED       NGS
HL0426
HL0426                          STATION DESCRIPTION
HL0426
HL0426''DESCRIBED BY NATIONAL GEODETIC SURVEY 1985
HL0426''3.6 KM (2.25 MI) NORTH FROM SILVERTON.
HL0426''3.6 KM (2.25 MI) NORTHERLY ALONG U.S. HIGHWAY 550 FROM ITS JUNCTION
HL0426''WITH STATE HIGHWAY 110 IN SILVERTON, IN AN EXPOSED AREA OF BEDROCK IN
HL0426''A HIGHWAY CUT, 0.7 KM (0.45 MI) SOUTH OF MILEPOST 73, AND 6.0 M (19.7
HL0426''FT) NORTH OF THE CENTERLINE OF THE HIGHWAY.
HL0426''THE MARK IS 0.3 METERS  E FROM  A WITNESS POST
HL0426''THE MARK IS 0.3 M ABOVE THE HIGHWAY.