Twelve thousand years ago, Columbian mammoth roamed here. About 12, 000 years ago, dams were placed in the creek by Hohokam Indians. In the 1870's, pony soldiers from Fort Lowell enjoyed horseback excursions to the ol' swimmin' hole still in use today. In the 1930's, 180 CCC workers built bridges and 3.8 miles of road up into the Santa Catalina Mountains. Many varieties of birds, deer and other ...