1973. 2013-05-22T18:51:50Z. 2013-06-13T15:35:48Z. Denson, N. M. (Norman MacLaren), 1914-. Dept. of the Interior, U.S. Geological Survey. English. Public. Wyoming.
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1973. 2012-11-07T14:26:38Z. 2012-11-07T14:26:38Z. Richmond, Gerald Martin, 1914-. Dept. of the Interior, U.S. Geological Survey. English. Public. Yellowstone National Park, Wyoming, and Teton County.
1973. 2012-11-06T18:25:44Z. 2012-11-06T18:25:44Z. Richmond, Gerald Martin, 1914-. Dept. of the Interior, U.S. Geological Survey. English. Public. Yellowstone National Park, Wyoming, and Teton County.