OF-01-02 Geologic Map of the Gibson Gulch Quadrangle OF-01-02 Geologic Map of the Gibson Gulch Quadrangle, Garfield County, Colorado
OF-00-12 Demonstrated Reserve Base for Coal in Colorado: Yampa Coal Field OF-00-12 Demonstrated Reserve Base for Coal in Colorado: Yampa Coal Field
OF-00-04 Geologic Map of the Hesperus Quadrangle OF-00-04 Geologic Map of the Hesperus Quadrangle, La Plata and Montezuma Counties, Colorado
OF-99-04 Geologic Map of the Durango West Quadrangle OF-99-04 Geologic Map of the Durango West Quadrangle, La Plata County, Colorado
OF-99-05 Geologic Map of the Hunter Mesa Quadrangle OF-99-05 Geologic Map of the Hunter Mesa Quadrangle, Garfield County, Colorado
OF-99-06 Geologic Map of the Durango East Quadrangle OF-99-06 Geologic Map of the Durango East Quadrangle, La Plata County, Colorado
OF-99-07 Geologic Map of the Mt. Sopris Quadrangle OF-99-07 Geologic Map of the Mt. Sopris Quadrangle, Garfield and Pitkin Counties, Colorado
RS-36 Availability of Coal Resources in Colorado: Somerset Quadrangle RS-36 Availability of Coal Resources in Colorado: Somerset Quadrangle, West-Central Colorado
OF-98-02 Geologic Map of the Ludwig Mountain Quadrangle OF-98-02 Geologic Map of the Ludwig Mountain Quadrangle, La Plata County, Colorado
OF-98-03 Geologic Map of the Leon Quadrangle OF-98-03 Geologic Map of the Leon Quadrangle, Eagle and Garfield Counties, Colorado
OF-98-05 Demonstrated Reserve Base for Coal in the Colorado Somerset Coal Field OF-98-05 Demonstrated Reserve Base for Coal in the Colorado – Somerset Coal Field