OF-00-01 Geologic Map of the Jack Hall Mountain Quadrangle OF-00-01 Geologic Map of the Jack Hall Mountain Quadrangle, Fremont County, Colorado
OF-00-02 Geologic Map of the Idaho Springs Quadrangle OF-00-02 Geologic Map of the Idaho Springs Quadrangle, Clear Creek County, Colorado
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-99-03 Geologic Map of the Gribbles Park Quadrangle OF-99-03 Geologic Map of the Gribbles Park Quadrangle, Park and Fremont 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
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-98-04 Geologic Map of the Cameron Mountain Quadrangle OF-98-04 Geologic Map of the Cameron Mountain Quadrangle, Chaffee, Park, and Fremont Counties, Colorado
OF-98-01 Geologic Map of the Basalt Quadrangle OF-98-01 Geologic Map of the Basalt Quadrangle, Eagle, 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