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Federal
Collection of digital structure contour maps from previously published USGS studies recent views
Department of the Interior —
Under the direction and funding of the National Cooperative Geologic Mapping Program (NCGMP) with guidance and encouragement from the United States Geological Survey... -
Federal
Land status and Federal mineral ownership, southern Piceance basin (psowng) recent views
Department of the Interior —
This is a shapefile and coverage of ownership in the southern Piceance Basin coal assessment area, northwestern Colorado. Polygons that make up the coverage include...