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Details for Benchmark: SV1465

N 47° 38.877 W 116° 28.853 (NAD 83)

Altitude: 5011

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

Location:
In KOOTENAI county, ID View Original Datasheet
Designation:
COPPER MTN 2
Marker Type:
survey disk
Setting:
in rock outcrop
Stability:

Reference Points

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Documented History (by the NGS)

01/01/1956 by USGS (MONUMENTED)
DESCRIBED BY US GEOLOGICAL SURVEY 1956 LOCATED ABOUT 3 MI N. OF U.S. HWY. 10. ON DIVIDE BETWEEN MARIE AND COPPER CREEKS, ON HIGHEST POINT OF COPPER MTN. AT APPROXIMATE NORTHWEST CORNER OF FOUNDATION OF DESTROYED USFS LO CABIN. TO REACH FROM EAST END OF TUNNEL ON U.S. HWY. 10 AT FOURTH OF JULY SUMMIT, DRIVE 0.1 MI E. ON U.S. HWY. 10 TO DIRT RD. RIGHT. THENCE 0.1 MI TO Y-RD. TAKE RIGHT FORK 0.1 MI TO 4-WAY INTERSECTION ON TOP OF TUNNEL. TAKE RD. 3.4 MI NW. UPHILL TO Y-RD. TAKE LEFT FORK 0.5 MI TO Y-RD. PROCEED ON LEFT FORK 0.2 MI TO RD. FORKS. TAKE RIGHT FORK AROUND EAST SIDE OF HILL 1.0 MI TO STATION. STATION MARK--STANDARD BRONZE TABLET STAMPED---COPPER MTN NO 2 1956---, CEMENTED IN ROCK OUTCROP. RM 1--STANDARD BRONZE RM TABLET STAMPED---NO 1 1956---, IN ROCK OUTCROP. RM 2--STANDARD BRONZE RM TABLET STAMPED---NO 2 1956---, IN ROCK OUTCROP.

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  • The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.)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.