Welcome to Colossal Cave Mountain Park, this dormant cave is the home to dozens of species of mammals, including bats. Colossal Cave, which is on National Register of Historic Places, has been inhabited by prehistoric peoples as well as train robbers.

The Hohokam peoples occupied a wide area of south-central Arizona from roughly Flagstaff south to the Mexican border. They are thought to have originally migrated north out of Mexico around 300 BC to become the most skillful irrigation farmers the Southwest ever knew.