IS-41 Active Permitted Mine Operations in Colorado IS-41 Active Permitted Mine Operations in Colorado, 1995-96
MS-30 Basement Structure Map of Colorado with Major Oil and Gas Fields (detail) MS-30 Basement Structure Map of Colorado with Major Oil and Gas Fields
IS-39 Colorado Mineral and Mineral Fuel Activity IS-39 Colorado Mineral and Mineral Fuel Activity, 1994
OF-95-01 1992-1993 Low Temperature Geothermal Assessment Program OF-95-01 1992-1993 Low Temperature Geothermal Assessment Program, Colorado
OF-95-02 Genetic Stratigraphy OF-95-02 Genetic Stratigraphy, Coal Occurrence and Regional Cross Section of the Coal-Bearing Williams Fork Formation, Mesaverde Group, Piceance Basin, Northwestern Colorado
RS-31 Coalbed Methane in the Upper Cretaceous Fruitland Formation RS-31 Coalbed Methane in the Upper Cretaceous Fruitland Formation, San Juan Basin, New Mexico and Colorado
OF-94-02 Coalbed Gas Composition in Upper Cretaceous Fruitland Formation OF-94-02 Coalbed Gas Composition in Upper Cretaceous Fruitland Formation, San Juan Basin, Colorado and New Mexico
RS-30 Geologic and Hydrologic Controls on Coalbed Methane: Sand Wash Basin RS-30 Geologic and Hydrologic Controls on Coalbed Methane: Sand Wash Basin, Colorado and Wyoming
IS-35 Selected References Related to Coalbed Methane in the Greater Green River IS-35 Selected References Related to Coalbed Methane in the Greater Green River, Piceance, Powder River, Raton and San Juan Basins
IS-32 Coalbed Methane Development in Colorado IS-32 Coalbed Methane Development in Colorado, September 1990
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