Part of the Rocky Mountains, the north-south-trending Teton Range rises from the floor of Jackson Hole without any foothills along a 40 mile (65 km) long by 7 to 9 miles (11 to 15 km) wide active fault-block mountain front system. In addition to the 13,770 ft (4,197 m) high Grand Teton, another eight peaks are over 12,000 ft (3,660 m) above sea level. Seven of these peaks between Avalanche and Cascade canyons make up the often-photographed Cathedral Group.
