1971. 2012-11-01T14:41:57Z. 2012-11-01T14:41:57Z. Neuerburg, George J. U.S. Geological Survey. English. Public. Colorado and Summit County.
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2. Maps showing soil analyses of interest for prospecting the Montezuma stock, Summit County, Colorado
1971. 2012-11-06T15:56:51Z. 2022-12-08T04:41:01Z. Neuerburg, George J. U.S. Geological Survey. English. Public. Colorado and Summit County.
