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Details for Benchmark: SB1030

N 46° 42.371 W 121° 39.879 (NAD 83)

Altitude: 6312

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

Location:
In LEWIS county, WA View Original Datasheet
Designation:
TATOOSH LOOKOUT USFS 1946
Marker Type:
survey disk
Setting:
in a boulder
Stability:
May hold, but of type commonly subject to surface motion.

Must Read!

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Great area to wander with many views and few people. BM, Lookout Footings, rusty nails and broken glass are all that remain from years past.

What an extraordinary view, and what a bonus to be able to claim a benchmark as well!

Hiked to Tatoosh Peak today and found this mark, but not SB1029 which should have been right next to it. The lookout structure is gone but the four concrete footings remain. This mark is just east of the edge of the eastern footings and a few feet south of the center point between them as described.

[Photos:]
photoTATOOSH LO mark with GPSr
The mark with GPS coords
photoDescent from the summit
The trail down takes you through a field of flowers and a few snowbanks.
photoMt Rainier and Tatoosh Ridge
The view looking north from the station

Noticed the survey marker at the summit of the ridge while on an overnight trip.

[Photos:]
photo20091010_124828

Documented History (by the NGS)

01/01/1946 by USFS (MONUMENTED)
DESCRIBED BY US FOREST SERVICE 1946 (JTJ) LOCATED BY DISTANCE AND DIRECTION. THE STATION IS LOCATED ABOUT 10 MILES AIRLINE NORTH OF PACKWOOD ON THE HIGHEST POINT OF TATOOSH RIDGE, ABOUT 1-1/2 FEET EAST OF THE TATOOSH LOOKOUT HOUSE OF THE COLUMBIA NATIONAL FOREST. THE MARK IS A STANDARD BRONZE FOREST SERVICE DISK SET IN A BURIED BOULDER FLUSH WITH THE GROUND SURFACE. STAMPED TATOOSH L O 1939.

Control Text

  • The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in December 1991.
  • The orthometric height was scaled from a topographic map.
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • The geoid height was determined by GEOID99.

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