OF-99-07 Geologic Map of the Mt. Sopris Quadrangle, Garfield and Pitkin Counties, Colorado

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

OF-99-14 Geologic Hazards and Mineral Resource Potential of Southwestern Costilla County, Colorado

OF-99-09 Directory of Colorado Water Quality Data

RockTalk: Annual Review 1999

RockTalk: Avalanches in Colorado

RockTalk: Coal in Colorado

WAT-1998-01 Characterization and Functional Assessment of Reference Wetlands in Colorado

RockTalk: Geologic Hazards in Colorado

IS-44 Colorado Mineral and Mineral Fuel Activity, 1997

IS-45 Active Permitted Mine Operations in Colorado, 1996-1997

IS-46 Snow and Avalanche: Colorado Avalanche Information Center Annual Report, 1997-1998