RS-29 Directory and Statistics of Colorado Coal Mines with Distribution and Electric Generation Map RS-29 Directory and Statistics of Colorado Coal Mines with Distribution and Electric Generation Map, 1989
RS-10 Proceedings of the Fourth Symposium on the Geology of Rocky Mountain Coal RS-10 Proceedings of the Fourth Symposium on the Geology of Rocky Mountain Coal, 1980
SP-07 Colorado Avalanche Area Studies and Guidelines for Avalanche-Hazard Planning SP-07 Colorado Avalanche Area Studies and Guidelines for Avalanche-Hazard Planning
B-39 An Appraisal of Colorado's Geothermal Resources B-39 An Appraisal of Colorado’s Geothermal Resources
RS-02 Mineral Resources Survey of Mesa County: A Model Study RS-02 Mineral Resources Survey of Mesa County: A Model Study