WAT-2005-02 Natural Acid Rock Drainage in Colorado: Overview and Recent Investigations WAT-2005-02 Natural Acid Rock Drainage in Colorado: Overview and Recent Investigations
IS-70 Colorado Minerals and Mineral Fuel Activity Report 2004 IS-70 Colorado Minerals and Mineral Fuel Activity Report 2004
IS-73 Colorado Mineral and Energy Industry Activities 2005 IS-73 Colorado Mineral and Energy Industry Activities 2005
OF-03-19 Geologic Map of the Manitou Springs Quadrangle OF-03-19 Geologic Map of the Manitou Springs Quadrangle, El Paso and Teller Counties, Colorado
PO-04 Poster Water and Contamination in Colorado PO-04 Poster – Water and Contamination in Colorado
PO-01 Poster Symbols of Colorado: Mineral PO-01 Poster – Symbols of Colorado: Mineral, Gem, Rock and Fossil