ON-007-09 Reconnaissance Map of Sand ON-007-09D Reconnaissance Map of Sand, Gravel, and Quarry Aggregate Resources, Elbert County, Colorado (Data) – v20220223
ON-007-09 Reconnaissance Map of Sand ON-007-09M Reconnaissance Map of Sand, Gravel, and Quarry Aggregate Resources, Elbert County, Colorado (Map) – v20220223
OF-19-02 Geologic Map of the Gowanda Quadrangle OF-19-02 Geologic Map of the Gowanda Quadrangle, Weld County, Colorado
OF-21-04 Geologic Map of the Hardin Quadrangle OF-21-04 Geologic Map of the Hardin Quadrangle, Weld County, Colorado
ON-007-03 Mineral Resource Potential Derivative Map (detail) ON-007-03M Mineral Resource Potential Derivative (Map)
ON-010D Colorado Groundwater Atlas - v20210304 (detail) ON-010M Colorado Groundwater Atlas (Map) – v20210304
ON-010D Colorado Groundwater Atlas - v20210304 (detail) ON-010D Colorado Groundwater Atlas (Data) – v20210304
OF-19-05 Geologic Map of the Hells Kitchen Quadrangle OF-19-05 Geologic Map of the Hells Kitchen Quadrangle, Delta and Mesa Counties, Colorado
ON-B-40 Radioactive Mineral Occurrences of Colorado and Bibliography (detail) ON-B-40D Radioactive Mineral Occurrences of Colorado and Bibliography (Data)
ON-B-40 Radioactive Mineral Occurrences of Colorado and Bibliography (detail) ON-B-40M Radioactive Mineral Occurrences of Colorado and Bibliography (Map)
OF-20-05 Geologic Map of the Greeley Quadrangle OF-20-05 Geologic Map of the Greeley Quadrangle, Weld County, Colorado
OF-20-03 Geologic Map of the Bracewell Quadrangle OF-20-03 Geologic Map of the Bracewell Quadrangle, Weld County, Colorado