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
OF-98-03 Geologic Map of the Leon Quadrangle OF-98-03 Geologic Map of the Leon Quadrangle, Eagle and Garfield Counties, Colorado
OF-98-04 Geologic Map of the Cameron Mountain Quadrangle OF-98-04 Geologic Map of the Cameron Mountain Quadrangle, Chaffee, Park, and Fremont Counties, Colorado
OF-96-01 Geologic Map of the Cattle Creek Quadrangle OF-96-01 Geologic Map of the Cattle Creek Quadrangle, Garfield County, Colorado
OF-96-02 Geologic Map of the Center Mountain Quadrangle OF-96-02 Geologic Map of the Center Mountain Quadrangle, Garfield County, Colorado
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