OF-77-02 Geology for Land-Use Planning, Horn Peak Quadrangle, Custer County, Colorado

OF-76-01 Active/Licensed Coal Mines of Colorado

OF-75-07 Gas Pipelines in Colorado

OF-75-08 Oil Pipelines in Colorado

OF-75-09 Oil and Gas Fields of Colorado

OF-75-00 Fluorspar Deposits in Colorado

OF-75-01 Slope Map of the Craig Area, Moffat County, Colorado

OF-75-02 Selected References on Colorado Mineral Resources

OF-75-03 Mineral Resources Maps of Moffat County, Colorado

OF-75-04 Mineral Resources and Mining Potential in the Idaho Springs Vicinity, Clear Creek County, Colorado

OF-75-05 Idaho Springs Area, Colorado: Geologic Hazards Map

OF-75-06 Slope Map of the Meeker Area, Rio Blanco County, Colorado