Roadside Geology Of WyomingAbove all else, Wyoming is a geological state. In every corner of every mountain range and basin within this big state there is a geological story recorded in the rocks. Here is the overall story of Wyoming's geology and history based on clues left in the state's rocks. David R. Lageson and Darwin R. Spearing, Revised 2nd Edition 1991, 271 pages, paperback
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