OF-99-05 Geologic Map of the Hunter Mesa Quadrangle, Garfield County, Colorado

OF-99-13 Active Surficial-Geologic Processes and Related Geologic Hazards in Georgetown, Clear Creek County, Colorado

OF-99-09 Directory of Colorado Water Quality Data

OF-99-01 Evaluation of Mineral and Mineral Fuel Potential of Phillips County State Mineral Lands Administered by the Colorado State Land Board

OF-99-11 Evaluation of Mineral and Mineral Fuel Potential of NW Moffat County State Mineral Lands Administered by the Colorado State Land Board

OF-99-12 Evaluation of Mineral and Mineral Fuel Potential of SW Moffat County State Mineral Lands Administered by the Colorado State Land Board

OF-99-16 Evaluation of Mineral and Mineral Fuel Potential of NE Moffat County State Mineral Lands Administered by the Colorado State Land Board

OF-99-08 Evaluation of Mineral and Mineral Fuel Potential of Sedgwick County State Mineral Lands Administered by the Colorado State Land Board

OF-99-15 Evaluation of Mineral and Mineral Fuel Potential of Park County State Mineral Lands Administered by the Colorado State Land Board

RockTalk: Annual Review 1999

RockTalk: Avalanches in Colorado

RockTalk: Coal in Colorado