1977. 2012-06-04T14:20:24Z. 2012-06-13T15:03:32Z. Marsh, Sherman P., 1935-. U.S. Geological Survey. English. Public. Nevada, Humboldt County, and U.S.
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1978. 2012-06-05T14:21:25Z. 2012-06-13T15:04:18Z. Marsh, Sherman P., 1935-. U.S. Geological Survey. English. Public. Nevada, Humboldt County, and U.S.