Interactive Map

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

Hydrogeologic Atlas of the Hill Country Trinity Aquifer:
Blanco, Hays, and Travis Counties, Central Texas

Atlas: Geologic Base Map and Geologic Control Points

Atlas: Stratigraphic Column and Type Geophysical Logs

Barton Creek Watershed Map

Blanco River Watershed Map

Historical Maps

C. 1880 Gulf, Colorado, & Santa Fe Railroad Map

1907 Hays County Postal Map

C. 1913 San Antonio & Aransas Pass Railroad Map

1920s Hays County Map

1936 Hays County Road Map

1940s Hays County Road Map

1958 Hays County Road Map

1961 Hays County Road Map

1964 Hays County Road 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