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Hiking and trails

There are 850 miles (1,370 km) of trails and unpaved roads in the park for hiking.

A total of the 71.6 miles (115.2 km) of the Appalachian Trail (AT) are located within the park. The AT enters the park atop Fontana Dam, and ascends a long ridge to the top of Brier Lick Knob at the Tennessee-North Carolina state line. The trail then roughly follows the crest of the range and the state line for its remainder in the park, rarely dropping below 5,000 feet (1,500 m). Clingmans Dome is the highest point along the entire trail. Other notable summits that the AT traverses include Thunderhead Mountain, Silers Bald, Mount Collins, Newfound Gap, Mount Kephart, Charlies Bunion, Mount Sequoyah, Mount Chapman, Mount Guyot, Old Black, and Mount Cammerer. A total of 12 trail shelters are located along the Appalachian Trail in the park, which are used mostly for extended backpacking trips.

Mount Le Conte is one of the most frequented destinations in the park, with a total of five trails leading to its summit. The most heavily traveled is the Alum Cave Trail. It provides many scenic overlooks and unique natural attractions such as Alum Cave Bluffs and Arch Rock. The Bullhead and Rainbow Falls trails each climb approximately 4,000 feet (1,200 m), making them two of the trails with the largest net elevation gain east of the Mississippi River. Hikers may spend a night at the LeConte Lodge, located near the summit, which provides cabins and rooms for rent except during the winter season. Accessible solely by trail, it is the only private lodging available inside the park, and the highest inn in the eastern United States. The Mt. LeConte Shelter is located atop the mountain on The Boulevard Trail. It can accommodate 12 people per night and is the only backcountry site in the park that has a permanent ban on campfires.

Another popular hiking trail leads to the pinnacle of the Chimney Tops, so named because of its unique dual-humped peaktops. This short but strenuous trek rewards nature enthusiasts with a spectacular panorama of the surrounding mountain peaks. It was the flashpoint for the 2016 Great Smoky Mountains wildfires, and therefore sustained extensive damage, evident still today in clearly visible burn scars. The extreme heat of the fires resulted in accelerated weathering and potential mass wasting of the exposed rock, and therefore access to the summit is no longer permitted for safety reasons.

Both the Laurel Falls and Clingmans Dome trails offer relatively easy, short, paved paths to their respective destinations. The Laurel Falls Trail leads to a powerful 80-foot (24 m) waterfall.

In addition to day hiking, the national park offers opportunities for backpacking and camping. Camping is allowed only in designated camping areas and shelters. There are three shelters in the park that are not located on the Appalachian Trail. The Kephart Shelter is located at the terminus of the Kephart Prong Trail which begins upstream of the Collins Creek Picnic Area. The shelter, situated along a tributary of the Oconaluftee River can accommodate 14 people. Laurel Gap Shelter is one of the more remote shelters in the park. Situated in a beech forest swag between Balsam High Top and Big Cataloochee Mountain, the Laurel Gap Shelter can accommodate up to 14 people per night. This shelter is a popular base camp for peakbaggers exploring the heart of the Smokies wilderness.