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Details for Benchmark: KL0015

N 39° 32.800 W 106° 02.417 (NAD 83)

Altitude: 9175.72

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

Location:
In SUMMIT county, CO View Original Datasheet
Designation:
R 299
Marker Type:
survey disk
Setting:
in rock outcrop
Stability:
Most reliable and expected to hold position/elevation well.

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Road has been widened and this hillside cut back to accommodate a recreation trail. Mark was not seen on any of the exposed rocks.

[Photos:]
photoKL0015 NNE

Documented History (by the NGS)

Unknown by BOR (MONUMENTED)
01/01/1951 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1951 4.85 MI SE FROM DILLON. 4.85 MILES SOUTHEAST ALONG STATE HIGHWAY 9 FROM THE PUBLIC SCHOOL AT DILLON, ON THE EAST SLOPE OF A HILL, 135 FEET WEST OF THE CENTER LINE OF THE HIGHWAY, 117 FEET SOUTHWEST OF A TELEPHONE POLE, 77 FEET WEST OF THE CENTER LINE OF THE ABANDONED COLORADO AND SOUTHERN RAILROAD GRADE, 30 FEET ABOVE THE LEVEL OF THE HIGHWAY, SET IN THE TOP OF A ROCK OUTCROP.
01/01/1970 by USGS (GOOD)
RECOVERY NOTE BY US GEOLOGICAL SURVEY 1970 RECOVERED IN GOOD CONDITION.

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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