2011. 2012-01-10T18:50:01Z. 2015-10-09T14:33:25Z. Kellogg, Karl S. U.S. Dept. of the Interior, U.S. Geological Survey ; Denver, CO : U.S. Geological Survey. English. Public. Colorado, Eagle County, Summit County, and Grand County.
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1998. 2008-08-07T13:21:53Z. 2011-08-15T17:29:49Z. Kellogg, Karl S. U.S. Dept. of the Interior, U.S. Geological Survey. English. Public. Montana, Madison County, and Gallatin County.
