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Details for Benchmark: GG0392

N 36° 22.283 W 095° 39.183 (NAD 83)

Altitude: 644.43

Coordinates may not be exact. Altitude is ADJUSTED and location is SCALED. (more info)

Location:
In ROGERS county, OK View Original Datasheet
Designation:
RV 36
Marker Type:
rivet
Setting:
light structures
Stability:
Mark of questionable or unknown stability.

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N 36° 22.323 W 095° 39.227

Benchmarking with BasicPoke on a rainy day and located the benchmark as described. The coordinates were off but we were able to locate by the description.

This entry was edited by bearbrew on Wednesday, 20 November 2013 at 01:04:23 UTC.

This entry was edited by bearbrew on Thursday, 21 November 2013 at 17:07:37 UTC.

Documented History (by the NGS)

Unknown by MPRR (MONUMENTED)
01/01/1960 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1960 5.5 MI N FROM CLAREMORE. 5.5 MILES NORTH ALONG THE MISSOURI PACIFIC RAILROAD FROM THE STATION AT CLAREMORE, ROGERS COUNTY, ABOUT 3 POLES NORTH OF MILEPOST 615, AT A 2- BY 3-FOOT CONCRETE CULVERT, AND IN THE CENTER OF THE TOP OF THE WEST HEAD WALL. A STANDARD MONEL-METAL RIVET.

Control Text

  • The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds.
  • The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991.
  • The geoid height was determined by GEOID99.
  • The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (G = 980.6199 gals.).
  • The modeled gravity was interpolated from observed gravity values.

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