One of the premier museums in the state! “Dinosaur Mountain” is the largest dinosaur exhibit west of the Mississippi River. See a constantly flowing 50-foot-high indoor waterfall and hear the thrilling roar of life-size, animated dinosaurs, including a saber-tooth cat and a Columbian Mammoth. A mini-environment re-creates the Petrified Forest featuring a Cretaceous aquarium with live descendants of prehistoric creatures such as sturgeon and turtles who haven’t changed in 65 million years. Also included is Arizona Highways permanent photography gallery, Hohokam Indian dwellings, a re-creation of the Lost Dutchman’s Gold Mine and other changing exhibits every three to four months. Admission fee.