OF-17-06 Geologic Map of the Boreas Pass Quadrangle OF-17-06 Geologic Map of the Boreas Pass Quadrangle, Park and Summit Counties, Colorado
B-05 Reconnaissance of the Geology of the Rabbit Ears Region B-05 Reconnaissance of the Geology of the Rabbit Ears Region, Routt, Grand, and Jackson Counties, Colorado
IS-79 Colorado Mineral and Energy Industry Activities 2015-2016 IS-79 Colorado Mineral and Energy Industry Activities 2015-2016
IS-78 Colorado Mineral and Energy Industry Activities 2014-2015 IS-78 Colorado Mineral and Energy Industry Activities 2014-2015
MS-25 Metal Mining Activity Map of Colorado with Directory MS-25 Metal Mining Activity Map of Colorado with Directory, 1989