1920. 2011-05-17T17:43:34Z. 2015-10-21T14:59:20Z. Geological Survey (U.S.). The Survey. English. Public. Albany County (Wyo.), Jackson County (Colo.), Larimer County (Colo.), and Rocky Mountain National Park (Colo.).
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1909. 2011-05-17T18:54:22Z. 2015-10-21T14:59:21Z. Geological Survey (U.S.). The Survey. English. Public. Albany County (Wyo.), Laramie County (Wyo.), and Larimer County (Colo.).
1908. 2011-05-27T18:48:28Z. 2011-05-27T18:48:28Z. Geological Survey (U.S.). The Survey. English. Public. Albany County (Wyo.), Carbon County (Wyo.), Jackson County (Colo.), and Wyoming.