IS-65 Snow and Avalanche: Colorado Avalanche Information Center Annual Report 2001-2002 IS-65 Snow and Avalanche: Colorado Avalanche Information Center Annual Report 2001-2002
IS-67 Colorado Mineral and Mineral Fuel Activity 2002 IS-67 Colorado Mineral and Mineral Fuel Activity, 2002
IS-68 Directory of Active Mines and Mine Permits in Colorado IS-68 Directory of Active Mines and Mine Permits in Colorado, 2002
OF-02-04 Geologic Map of the Monument Quadrangle OF-02-04 Geologic Map of the Monument Quadrangle, El Paso County, Colorado
OF-02-13 History OF-02-13 History, Geology, and Environmental Setting of Selected Mines Near Ophir, Uncompahgre National Forest, San Miguel County, Colorado
OF-02-08 Soil and Bedrock Conditions and Construction Considerations OF-02-08 Soil and Bedrock Conditions and Construction Considerations, North-Central Douglas County, Colorado
IS-59 Colorado Mineral and Mineral Fuel Activity 2000 IS-59 Colorado Mineral and Mineral Fuel Activity 2000