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Details for Benchmark: KK0303

N 39° 22.150 W 104° 40.800 (NAD 83)

Altitude: 6713.26

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

Location:
In DOUGLAS county, CO View Original Datasheet
Designation:
L 337
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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Caching & BM's along 86

Found as described.

Found in good condition.

[Photos:]
photoKK0303 L 337
N 39° 22.180 W 104° 40.810

15:55

Bench Mark recovered as described, in good condition.

At the southeast corner of CO 86 and Deerfield Rd.

[Photos:]
photoBench Mark
photoNorth at the Bench Mark
photoWest at the Bench Mark towards Deerfield Rd.

Documented History (by the NGS)

01/01/1952 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1952 4.6 MI W FROM ELIZABETH. 4.65 MILES WEST ALONG STATE HIGHWAY 86 FROM THE JONES MOTOR COMPANY BUILDING AT ELIZABETH, 60 FEET SOUTH OF THE CENTER LINE OF THE HIGHWAY, 27 FEET SOUTH OF THE CENTER LINE OF A GRAVELED ROAD LEADING SOUTHWEST, 1 FOOT NORTH OF FENCE, 2 FEET EAST OF A WITNESS POST, SET IN THE TOP OF A CONCRETE POST WHICH PROJECTS 0.7 FOOT 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 1992. * This is a POSTED BENCH MARK height. Code B indicates a distribution rate of 1.1 thru 2.0 mm/km.
  • 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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