MS-11 Map and Directory of Colorado Uranium and Vanadium Mining and Milling Activities

IS-07 Colorado Coal Analyses, 1975

MS-08 Licensed Coal Mines in Colorado

OF-77-01 Preliminary Investigation and Feasibility Study of Environmental Impact of Energy Resource Development in the Denver Basin

RS-01 Geology of Rocky Mountain Coal: A Symposium, 1976

IS-04 Map Showing Thermal Springs, Wells, and Heat-Flow contours in Colorado

IS-03 Oil and Gas Fields of Colorado, Statistical Data

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

IS-06 Hydrogeochemical Data of Thermal Springs and Wells in Colorado

IS-01 Coal Mines and Coal Fields of Colorado

IS-02 Coal Mines of Colorado, Statistical Data

SP-09 1975 Summary of Coal Resources in Colorado