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Federal
Digital Geologic-GIS Map of the Northern Elk Springs North Quadrangles, Colorado (NPS, GRD, GRI, DINO, ELKN digital map) adapted from a U.S. Geological Survey Geologic Quadrangle Map by Dyni (1968) recent views
Department of the Interior —
The Digital Geologic-GIS Map of the Northern Elk Springs North Quadrangles, Colorado is composed of GIS data layers and GIS tables, and is available in the following... -
Federal
Digital Geologic-GIS Map of the Haystack Rock Quadrangle, Colorado (NPS, GRD, GRI, DINO, HARO digital map) adapted from a U.S. Geological Survey Geologic Quadrangle Map by Hansen, Carrara and Rowley (1980) recent views
Department of the Interior —
The Digital Geologic-GIS Map of the Haystack Rock Quadrangle, Colorado is composed of GIS data layers and GIS tables, and is available in the following GRI-supported...