The Appalachian Trail in summer.
Appalachian Trail definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
hiking trail extending from central Me. to N Ga., along the Appalachian Mountains: c. 2,050 mi (3,299 km)
Appalachian Trail definition by American Heritage Dictionary
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.