Showing 129–137 of 137 results
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IS-02 Coal Mines of Colorado, Statistical Data
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MS-01 Geologic, Energy and Mineral Resource Maps of Routt County, Colorado
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OF-75-03 Mineral Resources Maps of Moffat County, Colorado
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SP-03 1972 Summary of Coal Resources in Colorado
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B-34-A Bibliography of Coal Resources in Colorado
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MI-07 Mineral and Water Resources of Colorado
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MI-03 Mineral Resources of Colorado, First Sequel
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MI-01 Mineral Resources of Colorado
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B-19 The Cretaceous Formations of the Northeastern Colorado Plains and the Foothills Formations of North-Central Colorado
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