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

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

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

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

Figure 5. Study Area Map of Natural Regions

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

Figure 7. Annual Precipitation Map of the study area

Figure 8. Sampling locations in the Study Area

Figure 9. Navasota River Watershed

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 http://websoilsurvey.nrcs.usda.gov/app/