1. Figure 1. Study site consisting of the 7 counties through which the Navasota River flows 

2. Figure 2. Geologic Map of Texas. Texas Bureau of Economic Geology, 1992.

3. Figure 3. Soil Type Map of Study Area. GIS Data source: USDA-NRCS

4. Figure 4. Statewide Natural Regions Map
Figure 4. Statewide Natural Regions Map. Study area highlighted in orange font.

5. Figure 5. Study Area Map of Natural Regions

6. Figure 6. Statewide Precipitation Map with study areas highlighted in orange

7. Figure 7. Annual Precipitation Map of the study area

8. Figure 8. Sampling locations in the Study Area

9. Figure 9. Navasota River Watershed

10. About the Maps
All maps (excluding the geologic map) were created in ArcGIS by Jayme M. Foster
GIS data was downloaded for free from Texas Natural Resource Information System (TNRIS), United States Geologic Survey – National Hydrography Dataset (USGS-NHD), & United States Department of Agriculture Natural Resource Conservation Service (USDA-NRCS)
Soil type data is available on the web (no GIS necessary) for free from the USDA Web Soil Survey