OF-14-15 Geologic Map of the Hotchkiss Quadrangle OF-14-15 Geologic Map of the Hotchkiss Quadrangle, Delta County, Colorado
OF-14-11 Geologic Map of the Rules Hill Quadrangle OF-14-11 Geologic Map of the Rules Hill Quadrangle, La Plata County, Colorado
OF-14-14 Geologic Map of the Cattle Creek Quadrangle OF-14-14 Geologic Map of the Cattle Creek Quadrangle, Garfield County, Colorado
OF-13-06 Geologic Map of the Rattlesnake Mesa Quadrangle OF-13-06 Geologic Map of the Rattlesnake Mesa Quadrangle, Rio Blanco County, Colorado
OF-13-03 Geologic Map of the Meeker Quadrangle OF-13-03 Geologic Map of the Meeker Quadrangle, Rio Blanco County, Colorado
OF-13-07 Geologic Map of the Olathe NW Quadrangle OF-13-07 Geologic Map of the Olathe NW Quadrangle, Delta and Montrose Counties, Colorado
OF-13-05 Geologic Map of the Orchard City Quadrangle OF-13-05 Geologic Map of the Orchard City Quadrangle, Delta County, Colorado
OF-12-09 Geologic Map of the Climax Quadrangle OF-12-09 Geologic Map of the Climax Quadrangle, Lake and Park Counties, Colorado
OF-12-04 Geologic Map of the Elbert Quadrangle OF-12-04 Geologic Map of the Elbert Quadrangle, Elbert and El Paso Counties, Colorado
OF-12-05 Geologic Map of the Falcon Quadrangle OF-12-05 Geologic Map of the Falcon Quadrangle, El Paso County, Colorado
OF-12-03 Geologic Map of the Eastonville Quadrangle OF-12-03 Geologic Map of the Eastonville Quadrangle, Elbert County, Colorado
OF-12-06 Geologic Map of the Leadville South Quadrangle OF-12-06 Geologic Map of the Leadville South Quadrangle, Lake County, Colorado