1998. 2002-06-01T04:00:00Z. 2005-02-18T21:45:32Z. Geological Survey (U.S.). The Survey ; Information Services [distributor]. English. Public. Colorado and Utah. Jurassic.
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2. Geologic map of Paleozoic rocks in the Calico Hills, Nevada Test Site, southern Nevada [microform]
1998. 2002-06-01T04:00:00Z. 2015-07-06T16:50:41Z. Geological Survey (U.S.). The Survey. English. Public. Nevada and Nevada Test Site. Paleozoic.
1998. 2002-06-01T04:00:00Z. 2002-06-01T04:00:00Z. Geological Survey (U.S.). The Survey ; Information Services [distributor]. English. Public. East (U.S.). Quaternary.
1998. 2002-06-01T04:00:00Z. 2002-06-01T04:00:00Z. Geological Survey (U.S.). The Survey ; Information Services [distributor]. English. Public. Northwest, Pacific. Cenozoic.
5. Pleistocene glaciation in the upper Platte River drainage basin, Colorado [cartographic material]
1998. 2002-06-01T04:00:00Z. 2016-07-20T21:08:17Z. Geological Survey (U.S.). U.S. Geological Survey ; For sale by U.S. Geological Survey Information Services. English. cartographic image. Public. South Platte River Watershed (Colo. and Neb.), United States, and South Platte River Watershed. Pleistocene and From 10 thousand to 2 million years ago.