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Details for Benchmark: TP1381

N 48° 55.692 W 119° 58.238 (NAD 83)

Altitude: 8338

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

Location:
In OKANOGAN county, WA View Original Datasheet
Designation:
WINDY
Marker Type:
triangulation station disk
Setting:
in rock outcrop
Stability:
Most reliable and expected to hold position/elevation well.

Reference Points

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Beautiful location! TFTC!

T100 peak.

Documented History (by the NGS)

01/01/1956 by USGS (MONUMENTED)
DESCRIBED BY US GEOLOGICAL SURVEY 1956 LOCATED ABOUT 28.0 MI NW. OF CONCONULLY, 17.0 MI NW. OF LOOMIS. ON HIGH SHARP ROCKY PEAK KNOWN LOCALLY AS WINDY PEAK. TO REACH FROM LOOMIS POST OFFICE, DRIVE W. ABOUT 250 FT TO RD. FORKS AND SIGN TOATS COULEE. TAKE RIGHT FORK FOLLOWING PAVED RD. 2.0 MI TO RD. FORKS AND SIGN TOATS COULEE. TAKE LEFT FORK FOLLOWING GRAVEL RD. 0.6 MI TO RD. FORKS AND SIGN SALMON MDW RD TAKE LEFT FORK 13.3 MI TO RD. FORKS. TAKE RIGHT FORK 6.1 MI TO BOUNDARY OF PRIMITIVE AREA AND END OF RD. PACK ALONG FS TRAIL LEFT ABOUT 6.0 MI TO TOP OF WINDY PEAK AND STATION. ABOUT A 4-HOUR PACK. STATION MARK--STANDARD TABLET STAMPED---WINDY 1956---, CEMENTED IN DRILL HOLE IN ROCK OUTCROP, CENTERED UNDER 14X14-FT LOH. (LOH INTERSECTED BY NGS IN 1950, SOON TO BE DEMOLISHED) RM 1--COPPER NAIL AND WASHER STAMPED---1---, CEMENTED IN DRILL HOLE IN ROCK OUTCROP. RM 2--COPPER NAIL AND WASHER STAMPED---2---, CEMENTED IN DRILL HOLE IN ROCK OUTCROP.
01/01/1969 by USGS (GOOD)
RECOVERY NOTE BY US GEOLOGICAL SURVEY 1969 DESCRIBED BY USGS. STATION MARK IS NOW ONE HALF OF DRILL HOLE IN ROCK. TABLET AND ROCK WERE BROKEN WHEN LOH WAS TORN DOWN.

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  • The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.)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