Digital Geologic-GIS Map of the Iris NW Quadrangle, Colorado (NPS, GRD, GRI, CURE, IRNW digital map) adapted from a U.S. Geological Survey Geologic Quadrangle Map by Hedlund and Olson (1974)
The Digital Geologic-GIS Map of the Iris NW Quadrangle, 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 (irnw_geology.gdb), and a 2.) Open Geospatial Consortium (OGC) geopackage. The file geodatabase format is …