It is home to swamps, prairies and mountains due to the foothills of the Appalachians which end in the county, the Coosa River basin, and its proximity to the Black Belt Prairie.
The Stippled studfish (Fundulus bifax) is a small freshwater fish which is endemic to the Tallapoosa River system in Georgia and Alabama, USA; and Sofkahatchee Creek (lower Coosa River system) in Alabama.
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They were native to the main channel of the Coosa River in Alabama, where the last suitable habitat was destroyed by the filling of the reservoir Logan Martin Lake in the mid-1960s.
The round rocksnail was historically found in the Cahaba River and the Little Cahaba River, Bibb County, Alabama; and the Coosa River, Elmore County, Alabama, and tributaries—Big Canoe and Kelly's creeks, St. Clair County, Alabama; Ohatchee Creek, Calhoun County, Alabama; Yellowleaf Creek, Shelby County, Alabama; and Waxahatchee Creek, Shelby/Chilton counties, Alabama.
Found in the Coosa River in Georgia and Tennessee, the upper reaches of the Conasauga River, and in the Etowah River.
The flat pebblesnail has not been found in the Coosa River portion of its range since the construction of the Lay Dam and Logan Martin Dam, and recent survey efforts have failed to locate any surviving populations outside of the Cahaba River drainage.