Jackson Hole

Jackson Hole (originally called Jackson's Hole) is a valley between the Gros Ventre and Teton mountain ranges in the U.S. state of Wyoming, near the border with Idaho. The term "hole" was used by early trappers, or mountain men, as a term for a large mountain valley. 
Jackson Hole is 55 miles long (89 km) long by 6-to-13 miles wide (10 to 21 km) and is a graben valley with an average elevation of 6,800 ft (2,100 m), its lowest point being near the southern park boundary at 6,350 ft (1,940 m).