The Trail runs from Georgia to Maine and is around 2,200 miles (3,500 km) long. The exact length changes over time as parts are changed.[a] It passes through 14 different states.
The Appalachian Trail Conservancy says the Trail is the longest hiking-only trail in the world.[1][2] More than two million people hike part of the trail at least once each year.[3]
History
The idea of an Appalachian Trail was first suggested in 1921. It took over ten years of work to build the Trail, and it was completed in 1937.
The Appalachian Trail is an extremely popular hiking trail. More than 2,000,000 people set foot on it at least once each year.[3]
The Trail has many enthusiastic fans. There are many books, documentaries, websites, and fan organizations about the hike.
Thru-hikers
Thru-hikers attempt to hike the whole trail in one season. The number of thru-hikes per year has increased steadily. In 2017, 715 north-bound and 133 south-bound thru-hikes were reported.[3] Others were likely unreported.
Some people hike from one end to the other, then turn around and thru-hike the trail the other way. This is known as a "yo-yo".[8]
↑ The exact length of the Appalachian Trail is not known because work on the trail changes its length every year. This work makes an exact length difficult to measure. (See Appalachian Trail Conservancy)