OF-12-07 Geologic Map of the Marmot Peak Quadrangle OF-12-07 Geologic Map of the Marmot Peak Quadrangle, Chaffee and Park Counties, Colorado
OF-12-06 Geologic Map of the Leadville South Quadrangle OF-12-06 Geologic Map of the Leadville South Quadrangle, Lake County, Colorado
OF-12-08 Geologic Map of the Minturn Quadrangle OF-12-08 Geologic Map of the Minturn Quadrangle, Eagle County, Colorado
OF-11-04 Geologic Map of the Jones Hill Quadrangle OF-11-04 Geologic Map of the Jones Hill Quadrangle, Park County, Colorado
OF-06-07 Geologic Map of the Fairplay West Quadrangle OF-06-07 Geologic Map of the Fairplay West Quadrangle, Park County, Colorado
OF-03-19 Geologic Map of the Manitou Springs Quadrangle OF-03-19 Geologic Map of the Manitou Springs Quadrangle, El Paso and Teller Counties, Colorado
OF-04-03 Geologic Map of the Alma Quadrangle OF-04-03 Geologic Map of the Alma Quadrangle, Park and Summit Counties, Colorado
OF-03-20 Geologic Map of the Copper Mountain Quadrangle OF-03-20 Geologic Map of the Copper Mountain Quadrangle, Summit, Eagle, Lake, and Park Counties, Colorado
OF-03-18 Geologic Map of the Cascade Quadrangle OF-03-18 Geologic Map of the Cascade Quadrangle, El Paso County, Colorado
OF-02-03 Geologic Map of the Keystone Quadrangle OF-02-03 Geologic Map of the Keystone Quadrangle, Summit County, Colorado
OF-02-07 Geologic Map of the Breckenridge Quadrangle OF-02-07 Geologic Map of the Breckenridge Quadrangle, Summit and Park Counties, Colorado
OF-01-05 Geologic Map of the Georgetown Quadrangle OF-01-05 Geologic Map of the Georgetown Quadrangle, Clear Creek County, Colorado