A Room with a View: The Teton Mountain Range from the inside of Cunningham Cabin in Wyoming. Photographer Jeremy Duguid said he wasn’t even sure if he was going to post the photo to his Flickr account. The Teton Range is a mountain range of the Rocky Mountains in North America. A north-south range, it is on the Wyoming side of the state’s border with Idaho, just south of Yellowstone National Park. Most of the range is in Grand Teton National Park. One reason the Tetons are famous is because of their great elevation above their base. Unlike most mountain ranges, the Tetons lack foothills, or lower peaks which can obscure the view. This is due to the fault zone being at the base of the range on the eastern side, and the range being too young to have had time to erode into soft hills. As such, the Tetons rise sharply, from 5,000 to nearly 7,000 feet above the valley floor. The view is most dramatic as seen from the east; on the west side, they appear as high rolling hills that transition smoothly into flat pasture.