2011. 2012-04-17T19:12:56Z. 2013-03-18T22:01:41Z. Bartos, Timothy T. U.S. Dept. of the Interior, U.S. Geological Survey. English. Public. Wyoming, Laramie County, and High Plains Aquifer.
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1994. 2002-06-01T04:00:00Z. 2002-06-01T04:00:00Z. Geological Survey (U.S.). The Survey ; Open-File Services Section, distributor. English. Public. Wyoming, Cheyenne Region, and High Plains Aquifer.