IS-82 Colorado Mineral and Energy Industry Activities 2018-2019 IS-82 Colorado Mineral and Energy Industry Activities 2018-2019
ON-008-04 U.S. Forest Service Abandoned Mine Land Inventory Project Colorado (detail) ON-008-04M U.S. Forest Service Abandoned Mine Land Inventory Project – Colorado (Map) – v20210214
OF-19-03 Geologic Map of the La Salle Quadrangle OF-19-03 Geologic Map of the La Salle Quadrangle, Weld County, Colorado
OF-18-03 Geologic Map of the Lands End Quadrangle OF-18-03 Geologic Map of the Lands End Quadrangle, Mesa County, Colorado