Alabama Landscapes
The Fall Line along the Cahaba River
The Cahaba River crosses the Fall Line a few miles north of Centerville (Bibb County). Figure CR1 shows the geology of the area.
Figure CR1. Geologic Map of the Centreville area. Black broken line: topographic profile, 1/2 and 2/3: change in river gradient (see Figure CR2), white circle: Cahaba lily site (Geologic map: Geological Survey of Alabama).