GP0251 ***********************************************************************
GP0251  DESIGNATION -  B 51
GP0251  PID         -  GP0251
GP0251  STATE/COUNTY-  AZ/COCONINO
GP0251  USGS QUAD   -  BITTER SPRINGS (1985)
GP0251
GP0251                         *CURRENT SURVEY CONTROL
GP0251  ___________________________________________________________________
GP0251* NAD 83(1986)-  36 44 47.     (N)    111 44 29.     (W)     SCALED
GP0251* NAVD 88     -      1248.262  (meters)    4095.34   (feet)  POSTED
GP0251  ___________________________________________________________________
GP0251  GEOID HEIGHT-         -23.03  (meters)                     GEOID99
GP0251  DYNAMIC HT  -        1246.810 (meters)    4090.58  (feet)  COMP
GP0251  MODELED GRAV-     979,430.1   (mgal)                       NAVD 88
GP0251
GP0251  VERT ORDER  -  * POSTED, Code A , SEE BELOW
GP0251
GP0251.The horizontal coordinates were scaled from a topographic map and have
GP0251.an estimated accuracy of +/- 6 seconds.
GP0251
GP0251.The orthometric height was determined by differential leveling
GP0251.and adjusted by the National Geodetic Survey in 1992.
GP0251.* This is a POSTED BENCH MARK height.  Code A indicates a distribution
GP0251.rate of 0.0 thru 1.0 mm/km.
GP0251
GP0251.The geoid height was determined by GEOID99.
GP0251
GP0251.The dynamic height is computed by dividing the NAVD 88
GP0251.geopotential number by the normal gravity value computed on the
GP0251.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45
GP0251.degrees latitude (G = 980.6199 gals.).
GP0251
GP0251.The modeled gravity was interpolated from observed gravity values.
GP0251
GP0251;                    North         East    Units  Estimated Accuracy
GP0251;SPC AZ C     -   637,340.      229,010.      MT  (+/- 180 meters Scaled)
GP0251
GP0251                          SUPERSEDED SURVEY CONTROL
GP0251
GP0251  NGVD 29     -      1247.354  (m)         4092.36   (f) ADJ UNCH    1 2
GP0251
GP0251.Superseded values are not recommended for survey control.
GP0251.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
GP0251.See file dsdata.txt to determine how the superseded data were derived.
GP0251
GP0251_MARKER: DB = BENCH MARK DISK
GP0251_SETTING: 66 = SET IN ROCK OUTCROP
GP0251_STAMPING: B 51 1934
GP0251_STABILITY: A = MOST RELIABLE AND EXPECTED TO HOLD
GP0251+STABILITY: POSITION/ELEVATION WELL
GP0251
GP0251  HISTORY     - Date     Condition        Recov. By
GP0251  HISTORY     - 1934     MONUMENTED       CGS
GP0251
GP0251                          STATION DESCRIPTION
GP0251
GP0251''DESCRIBED BY COAST AND GEODETIC SURVEY 1934
GP0251''7.9 MI SW FROM MARBLE CANYON.
GP0251''7.9 MILES SOUTHWEST ALONG U.S. HIGHWAY 89 FROM THE POST OFFICE AT
GP0251''MARBLE CANYON, COCONINO COUNTY, 0.5 MILE EAST OF THE CLIFF DWELLERS
GP0251''SERVICE STATION IN 1934, 90 YARDS EAST OF THE CULVERT AT STATION
GP0251''445+75.0, 90 YARDS EAST OF THE EAST ONE OF SOME LARGE BOULDERS SOUTH
GP0251''OF THE HIGHWAY, 72 FEET EAST OF A SMALL FALL IN A WASH, 51 FEET SOUTH
GP0251''OF THE CENTERLINE OF THE HIGHWAY, IN THE TOP OF THE WEST END OF A ROCK
GP0251''OUTCROP, AND ABOUT 18 INCHES ABOVE THE GROUND.  A STANDARD DISK,
GP0251''STAMPED B 51 1934.