Part of the Morrison Formation, a vast belt of land rich in fossils that stretches from New Mexico all the way north to Canada, this site first became famous during the fossil rush of the 1870s-1880s. A 1.25 mile trail winds its way along a ridge and signs are posted to help you interpret what you see, which includes dino fossils as well as trackways. More detailed guides and souvenirs are available at the Visitor Center. Apatosaurus, Stegosaurus and Diplodocus are just a few of the animals first found here.