OF-02-04 Geologic Map of the Monument Quadrangle OF-02-04 Geologic Map of the Monument Quadrangle, El Paso County, Colorado
OF-02-06 Geologic Map of the Fort Garland SW Quadrangle OF-02-06 Geologic Map of the Fort Garland SW Quadrangle, Costilla County, Colorado
OF-01-05 Geologic Map of the Georgetown Quadrangle OF-01-05 Geologic Map of the Georgetown Quadrangle, Clear Creek 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-00-03 Geologic Map of the Colorado Springs Quadrangle OF-00-03 Geologic Map of the Colorado Springs Quadrangle, El Paso 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-99-05 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-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
MS-31 Geologic Map of the Glenwood Springs Quadrangle MS-31 Geologic Map of the Glenwood Springs Quadrangle, Garfield County, Colorado