OF-91-04 Results of the 1987-88 EPA Supported Radon Study in Colorado with Discussion on Geology

IS-30 Bibliography and Index of Colorado Geology, 1984-1989

IS-31 Snow and Avalanche: Colorado Avalanche Information Center Annual Report, 1989-1990

IS-32 Coalbed Methane Development in Colorado, September 1990

RS-29 Directory and Statistics of Colorado Coal Mines with Distribution and Electric Generation Map, 1989

OF-90-01 Mesaverde Cross Sections, Piceance Basin, Colorado: Index to Published Sections and New Sections at Plateau and White River Fields

OF-90-02 Geology and Mineral Evaluation of Mineral Claims within the Snowmass Wilderness Area in the Vicinity of the Colorado-Highland Marble Quarry, Conundrum Creek, Pitkin County, Colorado

IS-26 Reconnaissance Study of Coal Fires in Inactive Colorado Coal Mines

IS-29 Snow and Avalanche: Colorado Avalanche Information Center Annual Report, 1988-1989

OF-89-01 Field Studies and Modeling Analysis of the Roan Creek Landslide, Garfield County, Colorado

SP-33 Landslide Loss Reduction: A Guide for State and Local Government Planning

IS-28 Snow and Avalanche: Colorado Avalanche Information Center Annual Report, 1987-1988