IS-67 Colorado Mineral and Mineral Fuel Activity 2002 IS-67 Colorado Mineral and Mineral Fuel Activity, 2002
IS-63 Colorado Mineral and Mineral Fuel Activity 2001 IS-63 Colorado Mineral and Mineral Fuel Activity, 2001
OF-00-10 History OF-00-10 History, Geology, and Environmental Setting of the Lower Fair Day Mine, Arapaho/Roosevelt National Forest, Boulder County, Colorado
OF-00-05 Evaluation of Mineral and Mineral Fuel Potential of Fremont County State Mineral Lands Administered by the Colorado State Land Board (detail) OF-00-05 Evaluation of Mineral and Mineral Fuel Potential of Fremont County State Mineral Lands Administered by the Colorado State Land Board
IS-52 Colorado Mineral and Mineral Fuel Activity IS-52 Colorado Mineral and Mineral Fuel Activity, 1998
RS-37 Geology and Mineral Resources of Gunnison County RS-37 Geology and Mineral Resources of Gunnison County, Colorado
OF-99-16 Evaluation of Mineral and Mineral Fuel Potential of NE Moffat County State Mineral Lands Administered by the Colorado State Land Board (detail) OF-99-16 Evaluation of Mineral and Mineral Fuel Potential of NE Moffat County State Mineral Lands Administered by the Colorado State Land Board
IS-45 Active Permitted Mine Operations in Colorado IS-45 Active Permitted Mine Operations in Colorado, 1996-1997
RS-35 Alkalic Igneous Rocks of Colorado and Their Associated Ore Deposits RS-35 Alkalic Igneous Rocks of Colorado and Their Associated Ore Deposits
IS-41 Active Permitted Mine Operations in Colorado IS-41 Active Permitted Mine Operations in Colorado, 1995-96
OF-88-02 Inspection and Certification Program for CERCLA Remedial Activities at Uravan OF-88-02 Inspection and Certification Program for CERCLA Remedial Activities at Uravan, Colorado