Ruth Hall Museum of Paleontology is at the Ghost Ranch Education and Retreat Center, 12 mi. n.w. on US 84. It documents the area's rich fossil record, including the 1947 discovery of a small, predatory dinosaur named Coelophysis, the state fossil. Also on display is a complete and remarkably well-preserved skeleton of the dinosaur Tawa hallae, a T. Rex relative that lived in North America during the late Triassic period.