EG-04 Engineering Geology Report for Planning District 9 EG-04 Engineering Geology Report for Planning District 9, Colorado
MI-08 Engineering Geologic Factors of the Marble Area MI-08 Engineering Geologic Factors of the Marble Area, Gunnison County, Colorado
EG-01 Geologic aspects EG-01 Geologic aspects, soils and related foundation problems, Denver metropolitan area, Colorado
MIN-1936-01 Annotated Catalogue of Unpublished Engineering and Geological Reports on Mineral Resources of Colorado MIN-1936-01 Annotated Catalogue of Unpublished Engineering and Geological Reports on Mineral Resources of Colorado