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Details for Benchmark: KM0123

N 39° 45.983 W 109° 03.733 (NAD 83)

Altitude: 5846.02

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

Location:
In UINTAH county, UT View Original Datasheet
Designation:
A 26
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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N 39° 45.998 W 109° 03.750

Bench Mark A 26 was recovered in good condition. It was as described, except that the sign is no longer at the Dragon town site. Also, the station is 15 feet west of an overhead powerline crossing.

[Photos:]
photoKM0123 20060409 G (Uintah Co. Utah)
Bench Mark A 26 w/GPSr.
photoKM0123 20060409 C (Uintah Co. Utah)
Bench Mark A 26.
photoKM0123 20060409 B (Uintah Co. Utah)
Bench Mark A 26 from Eye Level.
photoKM0123 20060409 A1 S (Uintah Co. Utah)
South at Bench Mark A 26.
photoKM0123 20060409 A2 W (Uintah Co. Utah)
West at Bench Mark A 26.
photoKM0123 20060409 A3 N (Uintah Co. Utah)
North at Bench Mark A 26.

Documented History (by the NGS)

01/01/1933 by CGS (MONUMENTED)
01/01/1966 by USGS (GOOD)
DESCRIBED BY US GEOLOGICAL SURVEY 1966 23.6 MI S FROM DRAGON. 23.6 MILES SOUTH ALONG THE BAXTER PASS ROAD (STATE HWY. 45) FROM BONANZA, UINTAH COUNTY, ABOUT 1.4 MILES SOUTHEAST ALONG BAXTER PASS ROAD FROM A SIGN DESIGNATION THE LOCATION OF THE FORMER TOWN OF DRAGON, ABOUT 1.7 MILES NORTHWEST OF THE COLORADO, UTAH STATE LINE, 50 FEET WEST OF THE ROAD, 2 FEET EAST OF A METAL WITNESS SIGN. A STANDARD DISK, STAMPED 5841.944 A 26 1933 AND SET IN THE TOP OF A CONCRETE POST.

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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