QE0492 ***********************************************************************
QE0492  DESIGNATION -  18
QE0492  PID         -  QE0492
QE0492  STATE/COUNTY-  OR/POLK
QE0492  USGS QUAD   -  DALLAS (1986)
QE0492
QE0492                         *CURRENT SURVEY CONTROL
QE0492  ___________________________________________________________________
QE0492* NAD 83(1986)-  44 55 15.     (N)    123 18 58.     (W)     SCALED
QE0492* NAVD 88     -       100.255  (meters)     328.92   (feet)  ADJUSTED
QE0492  ___________________________________________________________________
QE0492  GEOID HEIGHT-         -22.11  (meters)                     GEOID99
QE0492  DYNAMIC HT  -         100.254 (meters)     328.92  (feet)  COMP
QE0492  MODELED GRAV-     980,605.9   (mgal)                       NAVD 88
QE0492
QE0492  VERT ORDER  -  FIRST     CLASS II
QE0492
QE0492.The horizontal coordinates were scaled from a topographic map and have
QE0492.an estimated accuracy of +/- 6 seconds.
QE0492
QE0492.The orthometric height was determined by differential leveling
QE0492.and adjusted by the National Geodetic Survey in June 1991.
QE0492
QE0492.The geoid height was determined by GEOID99.
QE0492
QE0492.The dynamic height is computed by dividing the NAVD 88
QE0492.geopotential number by the normal gravity value computed on the
QE0492.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45
QE0492.degrees latitude (G = 980.6199 gals.).
QE0492
QE0492.The modeled gravity was interpolated from observed gravity values.
QE0492
QE0492;                    North         East    Units  Estimated Accuracy
QE0492;SPC OR N     -   143,240.    2,277,720.      MT  (+/- 180 meters Scaled)
QE0492
QE0492                          SUPERSEDED SURVEY CONTROL
QE0492
QE0492  NGVD 29     -        99.218  (m)          325.52   (f) ADJ UNCH    1 2
QE0492
QE0492.Superseded values are not recommended for survey control.
QE0492.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
QE0492.See file dsdata.txt to determine how the superseded data were derived.
QE0492
QE0492_MARKER: DD = SURVEY DISK
QE0492_SETTING: 30 = RAILING
QE0492_STAMPING: PRIM TRAV STA 18 325 ORE 1913
QE0492_STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY
QE0492
QE0492  HISTORY     - Date     Condition        Recov. By
QE0492  HISTORY     - 1913     MONUMENTED       USGS
QE0492  HISTORY     - 1930     GOOD             NGS
QE0492
QE0492                          STATION DESCRIPTION
QE0492
QE0492''DESCRIBED BY NATIONAL GEODETIC SURVEY 1930
QE0492''IN DALLAS.
QE0492''IN NORTH STONE RAILING OF CONCRETE STEPS AT ENTRANCE TO POLK COUNTY
QE0492''COURTHOUSE AT DALLAS.  AT NORTHWEST CORNER OF BUILDING.