This route follows the Appalachian Mountain chain from Shenendoah National Park to the Great Smoky Mountain National Park-a distance of 469 miles. There are frequent turnouts for mountain vistas, waterfalls, picnic areas, and visitor centers. Much of the Parkway is closed in winter. The speed limit is strictly limited to 45 miles per hour, and trucks are prohibited.The South Section Auto Tour covers the last 175 miles of the parkway beginning at the visitor center at Linville Falls. The parkway passes through a series of gaps, meadows, tunnels, and scenic overlooks. Points of interest include the Museum of North Carolina Minerals, the Folk Art Center and Craggy Falls. A popular sidetrip is a visit to the Vanderbilt's magnificent Biltmore Estate.