Great downbuckle in the Earth's crust in the region of the present Appalachian Mountains. It was in the Appalachians that James Hall first worked out the geosynclinal theory of mountain building (see geosyncline)
Mountain system, eastern North America. The Appalachians, among the oldest mountains on earth, extend almost 2,000 mi (3,200 km) from the Canadian province of Newfoundland and Labrador in the northeast southwestward to Alabama in the U.S. They include the White Mountains in New Hampshire, the Green Mountains in Vermont, the Catskill Mountains in New York, the Allegheny Mountains in Pennsylvania, the Blue Ridge Mountains in Virginia and North Carolina, the Great Smoky Mountains in North Carolina and Tennessee, and the Cumberland Plateau in Tennessee. Their highest peak is Mount Mitchell in North Carolina. See also Appalachian Geosyncline; Appalachian National Scenic Trail
Footpath, Appalachian Mountains, U.S. Extending over 2,000 mi (3,200 km) from Mount Katahdin, Maine, to Springer Mountain, Georgia, along the crest of the mountains, the trail passes through 14 states, 8 national forests, and 2 national parks. Hikers and volunteers maintain the shelters and campsites. The trail's highest point is Clingmans Dome (6,643 ft [2,025 m]) in the Great Smoky Mountains. Originally established by hikers in the 1930s, it became part of the National Trail System established by the U.S. Congress in 1968
A hiking path of the eastern United States extending about 3,298 km (2,050 mi) from Mount Katahdin in central Maine to Springer Mountain in northern Georgia. It is the world's longest continuous mountain trail
Mountain range that extends more than 1,860 mi (3,000 km) along the eastern margin of North America, from Alabama to Newfoundland. It was formed by the progressive eastward addition of material to the continental margin of North America. The earliest Appalachian sediments were deposited near the start of the Cambrian Period