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1Published 1980Government Document Map
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2Coal resource occurrence of the Cabin Creek SE quadrangle, Sheridan and Campbell Counties, Wyoming /Published 1980Government Document Map
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3Published 1980Government Document Map
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4Published 1980Government Document Map
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5Published 1980Government Document Map
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6Coal resource occurrence map of the Laskie Draw quadrangle, Johnson and Campbell Counties, Wyoming /Published 1980Government Document Map
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7Coal resource occurrence map of the Negro Butte quadrangle, Johnson and Campbell Counties, Wyoming /Published 1980Government Document Map
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8Published 1980Government Document Map
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9Published 1979Government Document Map
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10Published 1979Government Document Map
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11Published 1979Government Document Map