OF-04-04 Geologic Map of the Buena Vista East Quadrangle, Chaffee County, Colorado

OF-04-05 Geologic Map of the Castle Rock South Quadrangle, Douglas County, Colorado

OF-04-06 Geologic Map of the Cherry Valley School Quadrangle, Elbert, Douglas, and El Paso Counties, Colorado

OF-04-09 Geologic Map of the Vallecito Reservoir Quadrangle, La Plata County, Colorado

OF-04-07 Geologic Map of the Dawson Butte Quadrangle, Douglas County, Colorado

OF-04-08 Geological Map of the La Valley Quadrangle, Costilla County, Colorado

OF-03-06 Geologic Map of Black Forest Quadrangle, El Paso County, Colorado

OF-01-01 Geologic Map of the Castle Rock Gulch Quadrangle, Chaffee and Park Counties, Colorado

OF-03-09 Geologic Map of the Greenland Quadrangle, Douglas and El Paso Counties, Colorado

OF-01-04 Geologic Map of the Basin Mountain Quadrangle, La Plata County, Colorado

OF-03-21 Geologic Map of the Electra Lake 7.5-Minute Quadrangle, La Plata County, Colorado

OF-03-14 History, Geology and Environmental Setting of Selected Mines in the Upper Alamosa River Basin, Rio Grande National Forest, Conejos and Rio Grande Counties, Colorado