The “A.T.,” as it's called by hikers, is much more than just a path through the woods. It is a national scenic trail, part of the same national park system that includes Yellowstone, Yosemite, and the Great Smoky Mountains. Its official name is the Appalachian National Scenic Trail. But, unlike those famous parks, it's not a concentrated preserve, with campgrounds and paths within its boundaries. As the longest, skinniest part of America's national park system, the A.T. stretches over 14 different states and passes through more than 60 federal, state, and local parks and forests. Hundreds of roads cross it. In some parts, the Trail “corridor” is only a few hundred feet wide.
Maybe the most important difference between the A.T. and other national-park units, though, is that volunteers make it possible. Each year, thousands of people maintain, patrol, and monitor the footpath and its surrounding lands―outdoor lovers like you volunteering hundreds of thousands of hours of their time to taking care of this public treasure.
The Appalachian Trail, completed in 1937:
• Is a unit of the National Park Service.
• Is the nation's longest marked footpath, at approximately 2,178 miles.
• Is the first national scenic trail, designated in 1968.
• Crosses six national parks.
• Traverses eight national forests.
• Touches 14 states. Houses more than 2,000 occurrences of rare, threatened, endangered, and sensitive plant and animal species.
• Crosses numerous state and local forests and parks.
• Is maintained by 30 trail clubs and multiple partnerships.
Fun facts about the Appalachian Trail:
• Lowest elevation: 124 feet ? near the Trailside Museum and Zoo at Bear Mountain, New York
• Highest elevation: 6,625 feet ? on Clingmans Dome in Tennessee
• There are 165,000 blazes along the length of the Trail.
• More than 10,000 people have reported hiking the length of the Trail.
• It takes approximately 5 million footsteps to walk the entire length of the Trail.
• More than 6,000 volunteers contribute about 200,000 hours to the Appalachian Trail every year.