The Great Smoky Mountains National Park straddles the ridge 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 center line of the park. 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 main park entrances are located along U.S. Highway 441 (Newfound Gap Road) at the towns of Gatlinburg, Tennessee, and Cherokee, North Carolina.