MS-54 Colorado Cretaceous Stratigraphy Chart

MS-12 Map of Licensed Coal Mines in Colorado as of 01 June 1978

OF-17-02 Geologic Map of the Johnstown Quadrangle, Larimer and Weld Counties, Colorado

MS-53 Colorado Stratigraphic Chart

MS-19 The Coal Bed Methane Resources of Colorado

OF-08-17 Geologic Map of the Larkspur Quadrangle, Douglas and El Paso Counties, Colorado

OF-06-06 Geologic Map of the Palmer Lake Quadrangle, El Paso County, Colorado

MS-43 Coal Resource Maps of Colorado

OF-05-04 Geologic Map of the Como Quadrangle, Park County, Colorado

OF-04-06 Geologic Map of the Cherry Valley School Quadrangle, Elbert, Douglas, and El Paso Counties, Colorado

OF-04-07 Geologic Map of the Dawson Butte Quadrangle, Douglas County, Colorado

SP-54 2003 Summary of Coal Resources in Colorado