IS-45 Active Permitted Mine Operations in Colorado, 1996-97

Lists coal, metal, gemstone, building stone and non-metallic mines, and sand and gravel operations. Includes locations on a state map and a directory by county with mine type and commodity. 58 pages. 1 plate (1:1,000,000). Digital PDF download. IS-45D

Author: Lawson, Allison D. “IS-45 Active Permitted Mine Operations in Colorado, 1996-97.” Mining. Information Series. Denver, CO: Colorado Geological Survey, Department of Natural Resources, 1998.
Status: Digital
Year: 1998

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