Digital Geologic-GIS Map of Black Canyon of the Gunnison River and Vicinity, Colorado (NPS, GRD, GRI, BLCA, CURE, BLCG digital map) adapted from a U.S. Geological Survey Miscellaneous Geologic Investigations Map by Hansen (1971)
The Digital Geologic-GIS Map of Black Canyon of the Gunnison River and Vicinity, Colorado is composed of GIS data layers and GIS tables, and is available in the following GRI-supported GIS data formats: 1.) a 10.1 file geodatabase (blcg_geology.gdb), and a 2.) Open Geospatial Consortium (OGC) geopackage. The file …