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Details for Benchmark: RC2474

N 45° 50.838 W 121° 47.024 (NAD 83)

Altitude: 4207

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

Location:
In SKAMANIA county, WA View Original Datasheet
Designation:
BIG HUCKLEBERRY
Marker Type:
triangulation station 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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Documented History (by the NGS)

01/01/1910 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1910 (CVH) ON THE DIVIDE BETWEEN PANTHER CREEK AND THE LITTLE WHITE SALMON RIVER ABOUT 4 MILES SOUTHEASTERLY FROM STATION HUCKLE, ON THE HIGHEST POINT OF THE SOUTHERLY OF THE THREE SUMMITS FORMING BIG HUCKLEBERRY MOUNTAIN. THE STATION IS BEST REACHED OVER THE FOREST SERVICE TRAILS FROM WIND RIVER. IT IS MARKED BY A BRONZE TABLET IN CONCRETE AS DESCRIBED.
01/01/1946 by CGS (MARK NOT FOUND)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1946 (EBB) LOCATED ABOUT 9.5 MILES NORTH-NORTHEAST OF CARSON ON THE DIVIDE BETWEEN PANTHER CREEK AND THE LITTLE WHITE SALMON RIVER. IT IS ON THE HIGHEST POINT OF THE MOST SOUTHERLY OF THREE SUMMITS FORMING BIG HUCKLEBERRY MOUNTAIN. STATION IS A STANDARD USC AND GS BRONZE DISK SET IN THE TOP OF A SQUARE CONCRETE MONUMENT. A SEARCH WAS MADE FOR THE STATION AT TWO DIFFERENT TIMES, FIRST BY THE BUILDING PARTY AND LATER BY THE OBSERVING PARTY. A LOOKOUT HOUSE HAS BEEN PLACED ON THE SUMMIT OF MOUNTAIN, AND AS THE LOOKOUT HOUSE WAS NOT MENTIONED IN THE ORIGINAL DESCRIPTION, IT IS POSSIBLE THAT IT WAS CONSTRUCTED OVER THE STATION. A SEARCH FOR THE STATION COULD NOT BE MADE UNDER THE LOOKOUT HOUSE AS IT IS FLUSH WITH THE GROUND.

Control Text

  • The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in December 1991.
  • The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.)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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