Figure 4.2: Location of Buttermilk and Little Walnut in Travis County
Area 1, the small area, is a subwatershed of Buttermilk Creek. This area is located at the upper end of Buttermilk. Area 2 is Buttermilk watershed, and Area 3 is Little Walnut creek above its confluence with Buttermilk Creek. The stream lines shown are from the National Hydrography Dataset (NHD). Figure 4.3 gives a general idea of the shape and location of the three study areas.