
The southwestern Blue Ridge Mountains lie within Tennessee's eastern edge, and are divided into several subranges, namely the Great Smoky Mountains, Bald Mountains, Unicoi Mountains, Unaka Mountains, and Iron Mountains. These mountains, which average 5,000 feet (1,500 m) above sea level in Tennessee, contain some of the highest elevations in eastern North America. The state's border with North Carolina roughly follows the highest peaks of this range, including Clingmans Dome. Most of the Blue Ridge area is protected by the Cherokee National Forest, the Great Smoky Mountains National Park, and several federal wilderness areas and state parks. The Appalachian Trail roughly follows the North Carolina state line before shifting westward into Tennessee.