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Federal
Unpublished Digital Geologic-GIS Map of Parts of Great Sand Dunes National Park and Preserve (Sangre de Cristo Mountains and part of the Dunes), Colorado (NPS, GRD, GRI, GRSA, GSAM digital map) adapted from U.S. Geological Survey Miscellaneous Field Studies Maps by Lindsey, Johnson, Bruce, Soulliere, Flores and Hafner (1985 to 1991)
Department of the Interior —
The Unpublished Digital Geologic-GIS Map of Parts of Great Sand Dunes National Park and Preserve (Sangre de Cristo Mountains and part of the Dunes), Colorado is... -
Federal
Digital Geologic-GIS Map of parts of the Twin Peaks and Blanco Peak Quadrangles, Colorado (NPS, GRD, GRI, GRSA, TPBP digital map) adapted from a U.S. Geological Survey Miscellaneous Field Studies Map by Johnson and Bruce (1991)
Department of the Interior —
The Digital Geologic-GIS Map of parts of the Twin Peaks and Blanco Peak Quadrangles, Colorado is composed of GIS data layers and GIS tables, and is available in the... -
Federal
Unpublished Digital Geologic-GIS Map of parts of the Twin Peaks and Blanco Peak Quadrangles, Colorado (NPS, GRD, GRI, GRSA, TPBP digital map) adapted from a U.S. Geological Survey Miscellaneous Field Studies Map by Johnson and Bruce (1991)
Department of the Interior —
The Unpublished Digital Geologic-GIS Map of parts of the Twin Peaks and Blanco Peak Quadrangles, Colorado is composed of GIS data layers and GIS tables in a 10.1 file...