Approximately 193 sq mi / 123801 acres.
Blount, Etowah, St. Clair and Jefferson Counties AL.
Coldwater Darter, Trispot Darter
Delicate Spike, Finelined Pocketbook, Canoe Creek Clubshell, Southern Clubshell, Southern Pigtoe, Rayed Kidneyshell, Coosa Creekshell, Southern Combshell (H)
, Alabama Moccasinshell (H)
, Georgia Pigtoe (H)
Interrupted Rocksnail (H)
(H) = Historic (species historically occurred in the SHU or SRRU but, it has either not been collected in a number of years, and may be considered extirpated, or the species could be present but there aren’t recent records to document its presence).
Finelined Pocketbook, Southern Pigtoe, Southern Acornshell, Ovate Clubshell, Southern Clubshell, Upland Combshell, Triangular Kidneyshell, Coosa Moccasinshell