(Alabama)
Rickwood Caverns State Park is a public recreation area and natural history preserve located 7 miles (11 km) north of Warrior, Alabama. The 380-acre (150 ha) state park offers tours of caverns with illuminated limestone formations estimated to be 260 million years old, blind cave fish, and an underground pool. (Ref: https://en.wikipedia.org/wiki/Rickwood_Caverns_State_Park)