Digital Geologic-GIS Map of Yukon-Charley Rivers National Preserve and Vicinity, Alaska (NPS, GRD, GRI, YUCH, YUCH digital map) adapted from U.S. Geological Survey Scientific Investigations Map by Wilson an others (2015), and U.S. Geological Survey Open-File Report maps by Rombach, Freeman, Schaefer, Cameron, Werdon and others (1998, 1999, 2000, 2004 and 2008)
The Digital Geologic-GIS Map of Yukon-Charley Rivers National Preserve and Vicinity, Alaska 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 (yuch_geology.gdb), a 2.) Open Geospatial Consortium (OGC) geopackage, and 3.) 2.2 …