Approximately 208 sq mi / 133,154 acres.
Shelby and St. Clair Counties AL.
Finelined Pocketbook, Southern Clubshell, Rayed Kidneyshell, Southern Pigtoe (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 Clubshell, Southern Acornshell, Ovate Clubshell, Upland Combshell, Triangular Kidneyshell, Coosa Moccasinshell.