Aburra Valley (Colombia) Barossa Valley (Australia) Cauca Valley (Colombia) Danube Valley (Eastern Europe) Death Valley (California, United States) Fraser. Pages in category " Valleys of North America ". The following 4 pages are in this category, out of 4 total. This list may not reflect recent changes (learn more). Rivers and streams make most primary valley cuts, carving steep-walled sides Some river and stream valleys, especially those in the mountains or located near the . We will never share your e-mail address unless you allow us to do so. As crustal blocks sank, they formed the great trough of the valley, and other blocks were uplifted to gradually form the adjacent mountain ranges. Internet URLs are the best. They all take the form of a "U" or "V. Spotlight Demystified Quizzes Galleries Lists On This Day Biographies. A type of fault activity called block faulting , in which the movement is predominantly vertical, began to form the valley about 30 million years ago. More about Great Appalachian Valley 4 References found in Britannica Articles. This list may not reflect recent changes learn. This page was last edited on 20 Marchat SUBSCRIBE NOW to get home delivery. According to Navajo beliefs, a deity named Spider Woman lived on top of Spider Rock, the sandstone monolith in the foreground of this picture.