Basin and Range
Digital image showing the characteristic north-south trending mountain ranges associated with the extension of this area. The distance between Provo and Reno, Nevada has increased about 130 miles in the past 14 million years. The animation in this section is a good illustration of this area was first compressed, causing thrust faults　and folds, then pulled apart to form the mountains and valleys you see today. (Digital image by Ray Sterner, Johns Hopkins University)