Established in 1934, the Great Smoky Mountains National Park covers parts of North Carolina and Tennessee and features some of the highest mountains in eastern North America. The Great Smoky Mountains are part of the Blue Ridge Mountains, a division of the Appalachian Mountain Range. The Appalachian Trail, which runs from Maine to Georgia, passes through the park's center for 72 miles. Clingmans Dome is the park's highest summit, reaching 6,643 feet. Sixteen mountains in the park reach higher than 5000 feet. The park covers over 522,000 acres or 816 square miles, making it one of the most extensive protected tracts in the eastern United States.