Digital Geologic-GIS Map of San Antonio Missions National Historical Park and Vicinity, Texas (NPS, GRD, GRI, SAAN, SAAN digital map) adapted from a Texas Bureau of Economic Geology, University of Texas at Austin Geologic Atlas of Texas map by Barnes (1982) and a Texas Water Development Board Geologic Database of Texas map by Texas Water Development Board (2007)

The Digital Geologic-GIS Map of San Antonio Missions National Historical Park and Vicinity, Texas is composed of GIS data layers and GIS tables, and is available in...