Geology -- Colorado -- Arapaho National Forest. : Mineral resource potential and geology of the Routt National Forest and the Middle Park Ranger District of the Arapaho National Forest, Colorado / edited by Viki Bankey, Sandra J. Soulliere, Margo I. Toth ; with a section on salable minerals by John S. Dersch.
Geology -- Colorado -- Big Sandy Creek. : Geology and ground-water resources of the Big Sandy Creek valley, Lincoln, Cheyenne, and Kiowa Counties, Colorado / by Donald L. Coffin ; with a section on chemical quality of the ground water, by C. Albert Horr.
Geology -- Colorado -- Clear Creek County -- Maps. : Preliminary geologic map of the western and southern parts of the Byers Peak, the northwestern part of the Loveland Pass, and the eastern part of the Ute Peak 7 1/2 minute quadrangles, Clear Creek and Grand Counties, Colorado / by R.G. Eppinger, P.K. Theobald, and R.R. Carlson.
Geology -- Colorado -- Dillon Ranger District. : Mineral resource potential and geology of the White River National Forest and the Dillon Ranger District of the Arapaho National Forest, Colorado. with a section on Salable commodities by John S. Dersch / by Margo I. Toth [and five others].
Geology -- Colorado -- Durango -- Guidebooks. : Mass wasting following the 2002 Missionary Ridge fire near Durango, Colorado, a field trip guidebook / by Jeffrey A. Coe ... [and others] ; prepared in cooperation with the Association of Environmental & Engineering Geologists.
Geology -- Colorado -- El Paso County. : General and engineering geology of the United States Air Force Academy site, Colorado / by David J. Varnes and Glenn R. Scott; with a section on ground water, by W. D. E. Cardwell and Edward D. Jenkins; prepared in cooperation with the Air Force Academy Construction Agency.
Geology -- Colorado -- Gore Range. : Mineral resources of the Gore Range-Eagles Nest primitive area and vicinity, Summit and Eagle Counties, Colorado : an evaluation of the mineral potential of the area / by Ogden Tweto and Bruce Bryant, and by Frank E. Williams.