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IS-80 Colorado Mineral and Energy Industry Activities 2016-2017
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OF-16-02 Geologic Map of the Watkins Quadrangle, Arapahoe and Adams Counties, Colorado
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IS-79 Colorado Mineral and Energy Industry Activities 2015-16
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IS-73 Colorado Mineral and Energy Industry Activities 2005
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OF-00-09 Atlas of Sand, Gravel, & Quarry Aggregate Resources, Colorado Front Range Counties
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OF-80-08 The Effects of Mineral Conservation Legislation on Colorado’s Aggregate Industry
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SP-05A&B Sand, Gravel, and Quarry Aggregate Resources, Colorado Front Range Counties
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SP-05B Atlas of Sand, Gravel, and Quarry Aggregate Resources, Colorado Front Range Counties
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