MS-25 Metal Mining Activity Map of Colorado with Directory MS-25 Metal Mining Activity Map of Colorado with Directory, 1989
MS-28 Location Map and Descriptions of Metal Occurrences in Colorado with Notes on Economic Potential (detail) MS-28 Location Map and Descriptions of Metal Occurrences in Colorado with Notes on Economic Potential
MS-29 Map Showing Potential Metal-Mine Drainage Hazards in Colorado MS-29 Map Showing Potential Metal-Mine Drainage Hazards in Colorado, Based on Mineral-Deposit Geology
MS-06 Energy Resource Development Map of Colorado (detail) MS-06 Energy Resource Development Map of Colorado
MIN-2010-01 Lone Mesa State Park Mineral and Water Resource Assessment MIN-2010-01 Lone Mesa State Park Mineral and Water Resource Assessment
IS-33 Gold Panning and Placering In Colorado: How and Where IS-33 Gold Panning and Placering In Colorado: How and Where
IS-77 Colorado Mineral and Energy Industry Activities IS-77 Colorado Mineral and Energy Industry Activities, 2007
IS-75 Colorado Mineral and Energy Industry Activities 2006 IS-75 Colorado Mineral and Energy Industry Activities 2006