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1by Rice, Cynthia A.Subjects: “...Groundwater Wyoming Campbell County Region....”
Published 2000
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2by Ellis, Margaret S. (Margaret Stamm), 1950-Subjects: “...Coal Quality Wyoming Gillette Region....”
Published 2002
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3Published 2002Subjects: “...Coal mines and mining Economic aspects Wyoming Gillette Region....”
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Government Document eBook