ON-006-22M Alluvial Fan Mapping of Gilpin County, Colorado (Map) ON-006-22M Alluvial Fan Mapping of Gilpin County, Colorado (Map)
ON-006-22D Alluvial Fan Mapping of Gilpin County, Colorado (Data) - v20251120 ON-006-22D Alluvial Fan Mapping of Gilpin County, Colorado (Data) – v20251120
MS-17 Inventory of Nonmetallic Mining and Processing Operations in Colorado|MS-17 Inventory of Nonmetallic Mining and Processing Operations in Colorado MS-17 Inventory of Nonmetallic Mining and Processing Operations in Colorado
MS-24 Metal Mining Activity Map of Colorado and Directory MS-24 Metal Mining Activity Map of Colorado and Directory, 1984
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
SP-52 Messages in Stone: Colorado's Colorful Geology (2nd Edition) SP-52 Messages in Stone: Colorado’s Colorful Geology (2nd Edition)
RS-16 Geothermal Resource Assessment of Idaho Springs RS-16 Geothermal Resource Assessment of Idaho Springs, Colorado