Details for Benchmark: SX1234
N 47° 22.247 W 121° 12.514 (NAD 83)
Coordinates may not be exact. Altitude is UNKNOWN and location is ADJUSTED. (more info)
- In KITTITAS county, WA View Original Datasheet
- THORP MOUNTAIN LOOKOUT
- Marker Type:
- NGS Benchmark
- setting not listed - see description
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Documented History (by the NGS)
|01/01/1937 by CGS (MONUMENTED)
|DESCRIBED BY COAST AND GEODETIC SURVEY 1937
SEE STATION THORP MTN
- The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in December 1991.
- The Laplace correction was computed from DEFLEC99 derived deflections.
- The geoid height was determined by GEOID99.