Tucson’s Colossal Cave
Colossal Cave, part of the National Register of Historic Places, was discovered in 1879. Tours were first began in 1923 via ropes and lanterns. Colossal cave was thought to have been used by the Hohokam Indians between 900-1450 A.D. It is thought that the Hohokam used the cave for shelter, storage and as a shrine. [...]
