1961. 2012-09-12T18:05:19Z. 2013-03-18T20:24:26Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Utah, Daggett County, Wyoming, and Sweetwater County.
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1961. 2012-09-12T18:00:38Z. 2013-03-18T22:17:58Z. Hansen, Wallace R., 1920-. U.S. Geological Survey. English. Public. Utah, Daggett County, Colorado, and Moffat County.