Great Smoky Mountains National Park is a United States National Park and UNESCO World Heritage Site that straddles the ridgeline of the Great Smoky Mountains, part of the Blue Ridge Mountains, which are a division of the larger Appalachian Mountain chain. The border between Tennessee and North Carolina runs northeast to southwest through the centerline of the park. It is the most visited national park in the United States. On its route from Maine to Georgia, the Appalachian Trail also passes through the center of the park. The park was chartered by the United States Congress in 1934 and officially dedicated by President Franklin Delano Roosevelt in 1940.
The Great Smoky Mountains National Park is a major tourist attraction in the region. Over 9 million tourists and 11 million non-recreational visitors traveled to the park in 2003, twice as many as visited any other national park. Surrounding towns, notably Gatlinburg, Pigeon Forge, Sevierville, and Townsend, Tennessee, and Cherokee, Sylva, Maggie Valley, and Bryson City, North Carolina receive a significant portion of their income from tourism associated with the park.
The two main visitors' centers inside the park are Sugarlands Visitors' Center near the Gatlinburg entrance to the park and Oconaluftee Visitors' Center near Cherokee, North Carolina at the eastern entrance to the park. These ranger stations provide exhibits on wildlife, geology, and the history of the park. They also sell books, maps, and souvenirs. Unlike most other national parks, there is no entry fee to the park