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Details for Benchmark: RX0987

N 46° 17.943 W 113° 52.320 (NAD 83)

Altitude: 8467

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

Location:
In RAVALLI county, MT View Original Datasheet
Designation:
PALISADE
Marker Type:
NGS Benchmark
Setting:
setting not listed - see description
Stability:

Reference Points

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Documented History (by the NGS)

01/01/1965 by USFS (MONUMENTED)
DESCRIBED BY US FOREST SERVICE 1965 STATION IS LOCATED ON THE DOUBLE ROCKY TOP OF A DIVIDING RIDGE BETWEEN WILLOW CREEK AND BURNT FORK LAKE WHICH IS APPROXIMATELY 14 MILES DUE EAST OF CORVALLIS, MONTANA ROUTE TO STATION--TO REACH STATION FROM CORVALLIS PROCEED UP WILLOW CREEK TO THE END OF ROAD THENCE BY TRAIL APPROXIMATELY 2 MILES ABOVE OLD SAWMILL WHERE TRAIL FORKS. TAKE THE LEFT HAND FORK OF TRAIL TO SUMMIT AND STATION. STATION MARK--A STANDARD USDA FOREST SERVICE BRASS CAP IN ROCK NORTHEAST OF OLD L.O.T. REFERENCE MARK--2 STANDARD USDA FOREST SERVICE BRASS CAPS, SET IN ROCKS STAMPED R.M. 1 AND R.M. 2.

Control Text

  • The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in July 1992.
  • The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.)
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • The geoid height was determined by GEOID99.

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