Unpublished Digital Geologic-GIS Map of Parts of Great Sand Dunes National Park and Preserve (Sangre de Cristo Mountains and part of the Dunes), Colorado (NPS, GRD, GRI,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)
The Unpublished Digital Geologic-GIS Map of Parts of Great Sand Dunes National Park and Preserve (Sangre de Cristo Mountains and part of the Dunes), Colorado is composed of GIS data layers and GIS tables in a 10.1 file geodatabase (gsam_geology.gdb), a 10.1 ArcMap (.mxd) map document (gsam_geology.mxd), individual …