The Appalachian Trail extends 2,180 miles, passing through 14 states, all the way from Maine to Georgia. Each year an elite group of hikers, called 2000 milers, attempt to hike the entire length in a single season. Out of thousands, only one in four make it. Luckily, the continuously marked trail offers hundreds of access points, making it convenient (and free) for day hikers.
Photo courtesy of Nicholas A. Tonelli