Below is a map of Hays Trinity Groundwater Conservation District. The map includes several data layers that can be toggled on/off. Those data layers can be accessed by clicking the button in the top-left corner of the map.
Other Maps of Interest
Atlas: Geologic Base Map and Geologic Control Points
Atlas: Stratigraphic Column and Type Geophysical Logs
Historical Maps
C. 1880 Gulf, Colorado, & Santa Fe Railroad Map
C. 1913 San Antonio & Aransas Pass Railroad Map
Historical Maps Courtesy of the Texas State Library and Archives Commission
Lakes and Oceans Depth to Scale: R. Monroe
June 9, 2010 Guadalupe River Flood at Gruene Texas. Photo by Tom Reel-San Antonio Express News