Towering more than a mile above the ----------- valley known as Jackson Hole, the awe-inspiring Grand Teton rises to 13,770 feet above sea level. Located south of Yellowstone National Park, twelve Teton peaks reach higher than 12,000 feet elevation, high enough to support a dozen mountain glaciers. Youngest of the mountains in the Rocky Mountain system, the Teton Range displays some of the North America's oldest rocks. About 4,100,000 people visit Grand Teton National Park every year.?