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Details for Benchmark: LK0164

N 40° 38.300 W 102° 37.567 (NAD 83)

Altitude: 4041.13

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

Location:
In PHILLIPS county, CO View Original Datasheet
Designation:
G 103
Marker Type:
bench mark disk
Setting:
set into the top of a round concrete monument
Stability:
May hold, but of type commonly subject to surface motion.

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Found as described in good condition.

[Photos:]
photoLK0164 G 103
photoLK0164 SETTING

Found in good cond. only on the northeast side

[Photos:]
photoLK0164 1935

Documented History (by the NGS)

01/01/1935 by CGS (MONUMENTED)
01/01/1938 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1938 AT HAXTUN. AT HAXTUN, VERTICAL MARK SET IN THE S. E. CORNER OF THE CONCRETE FOUNDATION OF THE HAXTUN GRAIN ELEVATOR, 200 FEET E. OF N. AND S. OF CENTERLINE ROAD, 40 FEET S. OF THE MAIN TRACK 3 FEET ABOVE THE GROUND.

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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