1970. 2012-03-02T16:53:17Z. 2016-11-01T14:32:02Z. Geological Survey (U.S.). The Survey. English. Public. Utah, Wasatch County, and Summit County.
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1970. 2002-06-01T04:00:00Z. 2015-07-07T22:23:10Z. Reproduced by the Meriden Gravure Co. Spanish. Public. Southwest, New, Arizona, Colorado, New Mexico, and Utah.
