Report 101 by Matthew E. Broom, U.S. Geological Survey, October 1969
- Report 101 - Ground-Water Resources of Gregg and Upshur Counties, Texas (pdf - 1.85MB)
- Figure 2 (pdf - 1.09MB) - Geologic Map
- Figure 3 (pdf - 2.29MB) - Map Showing Approximate Altitude of and Depth to the Top of the Midway Group
- Figure 4 (pdf - 2.36MB) - Map Showing Approximate Altitude of and Depth to the Top of the Carrizo-Wilcox Group
- Figure 5 (pdf - 2.36MB) - Map Showing Approximate Altitude of and Depth to the Base of the Queen City Sand
- Figure 6 (pdf - 2.31MB) - Map Showing Altitudes of Water Levels in Wells Tapping the Carrizo-Wilcox Aquifer
- Figure 7 (pdf - 1.85MB) - Map Showing Altitudes of Water Levels in Wells Tapping the Queen City Sand
- Figure 10 (pdf - 2.36MB) - Map Showing Chloride and Dissolved Solids Content of Water from Selected Wells Tapping the Carrizo-Wilcox Aquifer
- Figure 11 (pdf - 2.35MB) - Map Showing Approximate Thickness of Sand Containing Fresh to Slightly Saline Water in the Carrizo-Wilcox Aquifer
- Figure 12 (pdf - 2.33MB) - Map Showing Approximate Thickness of Sand Containing Fresh Water in the Queen City Sand
- Figure 13 (pdf - 2.47MB) - Map Showing Location of Wells and Springs
- Figure 14 (pdf - 2.35MB) - Geologic Section A-A'
- Figure 15 (pdf - 2.29MB) - Geologic Section B-B'
- Figure 16 (pdf - 2.36MB) - Geologic Section C-C'