USC&GS marker

October 20, 2010summit of Mt. Margaret, Mt. St. Helens National Volcanic MonumentSkamania County, Washington

Coordinates: 46.31205,-122.13436 (click for map)
USC&GS marker [summit of Mt. Margaret, Mt. St. Helens National Volcanic Monument, Skamania County, Washington]
Filename: 20101020-131149.jpg 2592x1944 pixels, f4.0 @ 1/404 sec
That's "U.S. Coast and Geodetic Survey," which held that name until 1970 (it's now the National Geodetic Survey). Apparently this marker survived the eruption.

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