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Details for Benchmark: JL0032

N 38° 51.300 W 106° 08.267 (NAD 83)

Altitude: 8015.67

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

Location:
In CHAFFEE county, CO View Original Datasheet
Designation:
K 339
Marker Type:
bench mark disk
Setting:
in rock outcrop
Stability:
Most reliable and expected to hold position/elevation well.

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Found marker walking into town

Found this one, easy find.

[Photos:]
photoJL0032
Colorado Benckmark

Recovered in good condition as described.

[Photos:]
photoJL0032 K 339
photoTHE ROCK IT'S SET IN
N 38° 51.317 W 106° 08.262

FOUND IN GOOD CONDITION UNDER SMALL EVERGREEN TREE.

[Photos:]
photoJL0032 CLOSEUP
photoJL0032 SOUTHVIEW
MARK TO RIGHT OF PAPER AND GPSr UNDER TREE BRANCH.
photoJL0032 WESTVIEW

Documented History (by the NGS)

01/01/1953 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1953 1.0 MI NW FROM BUENA VISTA. 1.0 MILE NORTHWEST ALONG THE DENVER AND RIO GRANDE WESTERN RAILROAD FROM THE STATION AT BUENA VISTA, 59 FEET SOUTHWEST OF THE SOUTHWEST RAIL, 1.8 FEET SOUTHWEST OF A FENCE, 2 FEET ABOVE THE GROUND, SET IN THE TOP OF A 4X6 FOOT GRANITE OUTCROP.

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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