Report 29 by H.L. Kunze and J.T. Smith, U.S. Geological Survey | March 1965

• Report 29 - Base-Flow Studies Upper Guadalupe River Basin, Texas, Quality and Quantity (pdf - 4.8MB)
• Figure 11 (pdf - 0.76MB) - Geologic Map of the Upper Guadalupe River Basin Showing Water Discharge and Chemical Character of Surface Water