OF-96-04-28 Tertiary Igneous Rocks and Laramide Structure and Stratigraphy of the Spanish Peaks Region OF-96-04-28 Tertiary Igneous Rocks and Laramide Structure and Stratigraphy of the Spanish Peaks Region, South-Central Colorado: Road Log and Descriptions from Walsenburg to La Veta
MS-15 Map and Discovery of Permitted Colorado Coal Mines MS-15 Map and Discovery of Permitted Colorado Coal Mines, 1981
OF-80-04 Coal Bed Methane Potential of the Raton Mesa Coal Region OF-80-04 Coal Bed Methane Potential of the Raton Mesa Coal Region, Raton Basin, Colorado
OF-79-03 Content of Methane in Coal from Four Core Holes in the Raton and Vermejo Formations OF-79-03 Content of Adsorbed Methane in Coal from Four Core Holes in the Raton and Vermejo Formations, Las Animas County, Colorado
MS-13 State Lands Status Map: Lands and Minerals Administered by Agencies of the Colorado Department of Natural Resources MS-13 State Lands Status Map: Lands and Minerals Administered by Agencies of the Colorado Department of Natural Resources
MS-10 Metal Mining Activity Map of Colorado Excluding Uranium and Vanadium (with Directory) MS-10 Metal Mining Activity Map of Colorado Excluding Uranium and Vanadium (with Directory), 1978
MS-11 Map and Directory of Colorado Uranium and Vanadium Mining and Milling Activities (detail) MS-11 Map and Directory of Colorado Uranium and Vanadium Mining and Milling Activities
EG-03 Engineering Geology Report for Planning Districts 7 and 13 EG-03 Engineering Geology Report for Planning Districts 7 and 13, Colorado