OF-99-04 Geologic Map of the Durango West Quadrangle, La Plata County, Colorado

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

OF-99-06 Geologic Map of the Durango East Quadrangle, La Plata County, Colorado

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-99-03 Geologic Map of the Gribbles Park Quadrangle, Park and Fremont Counties, 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