RX0016 ***********************************************************************
RX0016  DESIGNATION -  4071
RX0016  PID         -  RX0016
RX0016  STATE/COUNTY-  MT/LEWIS AND CLARK
RX0016  USGS QUAD   -  HELENA (1985)
RX0016
RX0016                         *CURRENT SURVEY CONTROL
RX0016  ___________________________________________________________________
RX0016* NAD 83(1986)-  46 35 20.     (N)    112 02 26.     (W)     SCALED
RX0016* NAVD 88     -      1241.809  (meters)    4074.17   (feet)  ADJUSTED
RX0016  ___________________________________________________________________
RX0016  GEOID HEIGHT-         -12.98  (meters)                     GEOID99
RX0016  DYNAMIC HT  -        1241.534 (meters)    4073.27  (feet)  COMP
RX0016  MODELED GRAV-     980,350.0   (mgal)                       NAVD 88
RX0016
RX0016  VERT ORDER  -  FIRST     CLASS II
RX0016
RX0016.The horizontal coordinates were scaled from a topographic map and have
RX0016.an estimated accuracy of +/- 6 seconds.
RX0016
RX0016.The orthometric height was determined by differential leveling
RX0016.and adjusted by the National Geodetic Survey in June 1991.
RX0016.WARNING-Repeat measurements at this control monument indicate possible
RX0016.vertical movement.
RX0016
RX0016.The geoid height was determined by GEOID99.
RX0016
RX0016.The dynamic height is computed by dividing the NAVD 88
RX0016.geopotential number by the normal gravity value computed on the
RX0016.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45
RX0016.degrees latitude (g = 980.6199 gals.).
RX0016
RX0016.The modeled gravity was interpolated from observed gravity values.
RX0016
RX0016;                    North         East    Units  Estimated Accuracy
RX0016;SPC MT       -   263,060.      405,450.      MT  (+/- 180 meters Scaled)
RX0016
RX0016                          SUPERSEDED SURVEY CONTROL
RX0016
RX0016  NGVD 29     -      1240.766  (m)         4070.75   (f) ADJ UNCH    1 2
RX0016
RX0016.Superseded values are not recommended for survey control.
RX0016.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
RX0016.See file dsdata.txt to determine how the superseded data were derived.
RX0016
RX0016_MARKER: DD = SURVEY DISK
RX0016_SETTING: 36 = BUILDING
RX0016_STAMPING: 4071.287 9
RX0016_STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL
RX0016
RX0016  HISTORY     - Date     Condition        Recov. By
RX0016  HISTORY     - UNK      MONUMENTED       USGLO
RX0016  HISTORY     - 1962     GOOD             NGS
RX0016
RX0016                          STATION DESCRIPTION
RX0016
RX0016''DESCRIBED BY NATIONAL GEODETIC SURVEY 1962
RX0016''IN HELENA.
RX0016''AT HELENA, AT NUMBER 5 SIXTH AVENUE, AT THE SOUTHWEST CORNER OF THE
RX0016''INTERSECTION OF LAST CHANCE GULCH AND SIXTH AVENUE, SET VERTICALLY IN
RX0016''THE NORTH WALL.