OF-22-02 Geologic Map of the Brighton Quadrangle OF-22-02 Geologic Map of the Brighton Quadrangle, Adams County, Colorado
MS-12 Map of Licensed Coal Mines in Colorado as of 01 June 1978 (detail) MS-12 Map of Licensed Coal Mines in Colorado as of 01 June 1978
MS-19 The Coal Bed Methane Resources of Colorado (detail) MS-19 The Coal Bed Methane Resources of Colorado
OF-14-12 Geologic Map of the Craig Quadrangle OF-14-12 Geologic Map of the Craig Quadrangle, Moffat County, Colorado
OF-14-07 Geologic Map of the Watkins SE Quadrangle OF-14-07 Geologic Map of the Watkins SE Quadrangle, Arapahoe and Elbert Counties, Colorado
OF-14-10 Center Mountain Quadrangle Geologic Map OF-14-10 Center Mountain Quadrangle Geologic Map, Garfield County, Colorado
OF-14-01 Geologic Map of the Cabin Gulch Quadrangle OF-14-01 Geologic Map of the Cabin Gulch Quadrangle, Elbert County, Colorado
OF-12-05 Geologic Map of the Falcon Quadrangle OF-12-05 Geologic Map of the Falcon Quadrangle, El Paso County, Colorado
OF-11-02 Geology of Upper Cretaceous OF-11-02 Geology of Upper Cretaceous, Paleocene and Eocene Strata in the Southwestern Denver Basin, Colorado
OF-10-02 Geologic Map of the Center Mountain Quadrangle OF-10-02 Geologic Map of the Center Mountain Quadrangle, Garfield County, Colorado
OF-08-15 Geologic Map of the Bayfield Quadrangle OF-08-15 Geologic Map of the Bayfield Quadrangle, La Plata County, Colorado
OF-06-09 Geologic Map of the Fairplay East Quadrangle OF-06-09 Geologic Map of the Fairplay East Quadrangle, Park County, Colorado