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Details for Benchmark: SX1234

N 47° 22.247 W 121° 12.514 (NAD 83)

Altitude: 0

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

Location:
In KITTITAS county, WA View Original Datasheet
Designation:
THORP MOUNTAIN LOOKOUT
Marker Type:
NGS Benchmark
Setting:
setting not listed - see description
Stability:

Must Read!

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Found this Benchmark a few years ago while on a backpacking trip from Thorp Lake to the Thorp Mountain Lookout with my son. Photographed both the marker and the lookout at that time.

Just now discovering Benchmark Hunting, and using this past discovery for self-teaching. I was able to locate the PID and Designation from the NGS site. Then download the Datasheet to my laptop. Looks like I will be expanding my horizons from Geo-caching to include Benchmark Hunting

[Photos:]
photoTHORP MOUNTAIN LOOKOUT
photoLookout Tower

Great day with great views. Hike was a workout, but well worth every bit of it. Located Geocache's and other bench marks.

Grueling hike, but worth it in the end.

A rough road and a steep hike to get to this lookout but the view in worth it. The lookout was occupied today, for fire watch. I could see 4 different fires from here. Ryan

[Photos:]
photoThorp Mountain Lookout
Here's the lookout looking from the west.

with Lindsay, Jordan, and Chuck, Eric, Kyle.

Documented History (by the NGS)

01/01/1937 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1937 SEE STATION THORP MTN

Control Text

  • 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.

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