The Geology of Bighorn Canyon is a 12 minute film that gives you an in-depth look at how "The Grandest Canyon in the Northern Rockies" was created. This film was produced in a cooperative effort between the National Park Service and Montana State University.
Did You Know?
There are five distinct rock layers exposed in the ridge at Horseshoe Bend. The Sundance Formation contains marine fossils such as gryphaea, belemnites, and crinoid stems. Above the Sundance, the Morrison Formation, of Jurassic age, contains diplodocus and allosaurus dinosaur fossils. More...