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Details for Benchmark: TP1192

N 48° 36.660 W 119° 51.400 (NAD 83)

Altitude: 6373

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

Location:
In OKANOGAN county, WA View Original Datasheet
Designation:
MUCKAMUCK LOOKOUT
Marker Type:
NGS Benchmark
Setting:
setting not listed - see description
Stability:
Mark of questionable or unknown stability.

Reference Points

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Documented History (by the NGS)

01/01/1925 by USGS (MONUMENTED)
01/01/1956 by USGS (GOOD)
DESCRIBED BY US GEOLOGICAL SURVEY 1956 TO REACH THE STATION FROM THE POST OFFICE IN OMAK, GO N ON U.S. HIGHWAY 97 FOR 5 BLOCKS TO A ROAD LEADING W AND A SIGN CONCONULLY STATE PARK. TAKE LEFT FORK AND FOLLOW A PAVED ROAD FOR 15.8 MI. TO CONCONULLY STATE PARK. CONTINUE STRAIGHT AHEAD FOR 0.2 MI. TO AN INTERSECTION. TURN LEFT (OFF PAVED ROAD) AND FOLLOW A GRAVEL ROAD FOR 1 BLOCK TO AN INTERSECTION AND A SIGN B.S. PLACE 7. CONTINUE STRAIGHT AHEAD FOR 1.8 MI. TO A ROAD FORK. CONTINUE STRAIGHT AHEAD TO A ROAD FORK AND SIGN B.S. RANCH 5 MI. CONTINUE STRAIGHT AHEAD FOR 2.3 MI. TO A ROAD FORK AND SIGN B.S. PLACE. TAKE THE RIGHT FORK FOR 0.7 MI. TO A ROAD FORK. TAKE THE LEFT FORK FOR 150 FT. TO A ROAD FORK. TAKE THE LEFT FORK FOR 1.8 MI. TO THE END OF THE ROAD AND END OF TRUCK TRAVEL. PACK UPHILL TO THE RIGHT OF A SPRING AND FOLLOW FOREST SERVICE TRAIL TO MUCKAMUCK LOOKOUT HOUSE AND THE STATION. ABOUT 4 MI. AND A 1-1/2-HR. PACK.

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  • The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.)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