OF-00-16 Naturally Degraded Surface Waters Associated with Hydrothermally Altered Terrane in Colorado OF-00-16 Naturally Degraded Surface Waters Associated with Hydrothermally Altered Terrane in Colorado
IS-54 Colorado Mineral and Mineral Fuel Activity IS-54 Colorado Mineral and Mineral Fuel Activity, 1999
IS-56 Snow and Avalanche: Colorado Avalanche Information Center Annual Report 1999-2000 IS-56 Snow and Avalanche: Colorado Avalanche Information Center Annual Report 1999-2000
OF-00-06 Evaluation of Mineral and Mineral Fuel Potential of Chaffee OF-00-06 Evaluation of Mineral and Mineral Fuel Potential of Chaffee, Gunnison, Lake, and Pitkin Counties State Mineral Lands Administered by the Colorado State Land Board
RS-38 Availability of Coal Resources in Colorado: Somerset Coal Field RS-38 Availability of Coal Resources in Colorado: Somerset Coal Field, West-Central Colorado
OF-00-08 Evaluation of Mineral and Mineral Fuel Potential of Teller County State Mineral Lands Administered by the Colorado State Land Board (detail) OF-00-08 Evaluation of Mineral and Mineral Fuel Potential of Teller County State Mineral Lands Administered by the Colorado State Land Board
OF-99-18 History OF-99-18 History, Geology, and Environmental Setting of Selected Mines near Creede, Rio Grande National Forest, Mineral County, Colorado
OF-00-12 Demonstrated Reserve Base for Coal in Colorado: Yampa Coal Field OF-00-12 Demonstrated Reserve Base for Coal in Colorado: Yampa Coal Field
OF-00-03 Geologic Map of the Colorado Springs Quadrangle OF-00-03 Geologic Map of the Colorado Springs Quadrangle, El Paso County, Colorado