1910. 2011-05-17T16:47:13Z. 2015-10-21T14:59:19Z. Geological Survey (U.S.). The Survey. English. Public. Rio Blanco County (Colo.) and Routt County (Colo.).
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1910. 2011-05-17T17:08:14Z. 2015-10-21T14:59:19Z. Geological Survey (U.S.). The Survey. English. Public. Larimer County (Colo.) and Weld County (Colo.).
1910. 2011-05-17T17:23:25Z. 2015-10-21T14:59:20Z. Geological Survey (U.S.). The Survey. English. Public. Garfield County (Colo.) and Rio Blanco County (Colo.).
1910. 2011-05-17T19:46:07Z. 2015-10-21T14:59:23Z. Geological Survey (U.S.). The Survey. English. Public. Rio Blanco County (Colo.) and Routt County (Colo.).
1910. 2011-05-18T14:54:30Z. 2022-11-28T18:00:17Z. Geological Survey (U.S.). The Survey. English. Public. Rio Blanco County (Colo.) and Routt County (Colo.).
1910. 2013-03-14T16:30:23Z. 2013-03-14T16:30:23Z. Cross, Whitman, 1854-1949. The Survey. English. Public. Colorado, La Plata County, San Juan County, Dolores County, Montezuma County, and États-Unis.
1910. 2011-06-01T14:04:25Z. 2015-10-21T15:00:11Z. Geological Survey (U.S.). The Survey. English. Public. Moffat County (Colo.) and Uintah County (Utah).
1910. 2011-05-19T18:34:27Z. 2011-05-19T18:34:27Z. Geological Survey (U.S.). The Survey. English. Public. West Virginia and Braxton County (W. Va.).