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Details for Benchmark: TP1248

N 48° 59.110 W 118° 03.554 (NAD 83)

Altitude: 5030

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

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

Reference Points

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Documented History (by the NGS)

01/01/1904 by IBC (MONUMENTED)
DESCRIBED BY INTERNATIONAL BOUNDARY COMMISSION 1904 (CHS) ABOUT 1 MILE SOUTH OF INTERNATIONAL BOUNDARY MONUMENT 170, ON THE SAME LOW WOODED RIDGE. THE STATION CAN BE REACHED BY FOLLOWING THE GRAND FORKS - ROSSLAND ROAD FROM THE WEST AS FAR AS THE SUMMIT OF THIS RIDGE, AND THENCE SOUTH ALONG THE DIVIDE TO THE STATION. STATION MARK--AN ALUMINUM DISK SET IN SOLID ROCK.

Control Text

  • The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in December 1991.
  • The orthometric height was scaled from a topographic map.
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • The geoid height was determined by GEOID99.

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