Appalachian National Scenic Trail

The Appalachian Trail (also called the A.T.), is a hiking trail in the Eastern United States, extending almost between Springer Mountain in Georgia and Mount Katahdin in Maine, and passing through 14 states.Gailey, Chris (2006)
"Appalachian Trail FAQs"
Outdoors.org (accessed September 14, 2006) The Appalachian Trail Conservancy claims the Appalachian Trail to be the longest hiking-only trail in the world. More than three million people hike segments of the trail each year.

The trail was first proposed in 1921 and completed in 1937 after more than a decade of work. Improvements and changes have continued since then. It became the Appalachian National Scenic Trail under the National Trails System Act of 1968.

The trail is maintained by 31 trail clubs and multiple partnerships, and managed by the National Park Service, United States Forest Service, and the nonprofit Appalachian Trail Conservancy. Most of the trail is in forest or wild lands, although some portions traverse towns, roads and farms. From south to north it passes through the states of Georgia, North Carolina, Tennessee, Virginia, West Virginia, Maryland, Pennsylvania, New Jersey, New York, Connecticut, Massachusetts, Vermont, New Hampshire, and Maine.

Thru-hikers walk the entire trail in a single season. The number of thru-hikes per year has increased steadily since 2010, with 715 northbound and 133 southbound thru-hikes reported for 2017. The Appalachian Trail Conservancy estimates there are over 3,000 attempts to traverse the entire trail each year, about 25% of which succeed. Many books, documentaries, and websites are dedicated to the pursuit. Some hike from one end to the other, then turn around and thru-hike the trail the other way, known as a "yo-yo".

Affiliated trail sections extend from either end—from the north as the International Appalachian Trail into Canada and beyond, and from the south as the Eastern Continental Trail into Alabama and Florida.

The Appalachian Trail, the Continental Divide Trail, and the Pacific Crest Trail informally constitute the Triple Crown of Hiking in the United States.

History

The trail was conceived by Benton MacKaye, a forester who wrote his original plan—called "An Appalachian Trail, A Project in Regional Planning"—shortly after the death of his wife in 1921. MacKaye's idea detailed a grand trail that would connect a series of farms and wilderness work/study camps for city-dwellers along the Appalachian Mountains from the highest point in the North (Mount Washington in New Hampshire) to the highest in the South ( Mt. Mitchell in North Carolina). Hiking was an incidental focus of his plan. In 1922, at the suggestion of Major William A. Welch, director of the Palisades Interstate Park Commission, his idea was publicized by Raymond H. Torrey with a story in the ''New York Evening Post'' under a full-page banner headline reading "A Great Trail from Maine to Georgia!"

On October 7, 1923, the first section of the trail, from Bear Mountain west through Harriman State Park to Arden, New York, was opened. MacKaye then called for a two-day Appalachian Trail conference to be held in March 1925 in Washington, D.C. This meeting inspired the formation of the Appalachian Trail Conference (now called the Appalachian Trail Conservancy) (ATC).

Arthur Perkins, a retired judge, and his younger associate Myron Avery took up the cause. In 1929, Perkins, who was also a member of the Connecticut Forest and Park Association and its Blue Blazed Trails committee, found Ned Anderson, a farmer in Sherman, Connecticut, who took on the task of mapping and blazing the Connecticut leg of the trail (1929–1933). It ran from Dog Tail Corners in Webatuck, New York, which borders Kent, Connecticut, at Ashley Falls, through the northwest corner of the state, up to Bear Mountain at the Massachusetts state line. (A portion of the Connecticut trail has since been rerouted (1979–1983) to be more scenic, adhering less to highways and more to wilderness, and includes the Ned K. Anderson Memorial Bridge.)

Anderson's efforts helped spark renewed interest in the trail, and Avery, who led the project after Perkins' death in 1932, was able to bring other states on board. Upon taking over the ATC, Avery adopted the goal of building a simple hiking trail. He and MacKaye clashed over the ATC's response to the construction of a road that overlapped part within Shenandoah National Park; MacKaye left the organization, while Avery was willing to reroute the trail. Avery served as Chair of the ATC from 1932 to 1952, the year he died.

Avery became the first to walk the trail end-to-end, though not as a thru-hike, in 1936. In August 1937, the trail was completed to Sugarloaf Mountain in Maine, and the ATC shifted its focus toward protecting the trail lands and mapping the trail for hikers.

Paul M. Fink was honored in 1977 by the Appalachian Trail Conference as "the guiding influence" in establishing the Trail in Tennessee and North Carolina in the 1920s. Fink was inducted into the Appalachian Trail Hall of Fame in 2019. In 1922, only a year after Benton MacKaye's famous article proposing an Appalachian Trail was written, Fink began corresponding with hiking leaders in New England about building the Trail. When Myron Avery began planning the route of the AT in the south, Fink was the first person he contacted.

Many of the trail's present highlights were not part of the trail in 1937: Roan Mountain, North Carolina and Tennessee; the Mount Rogers high country, including Grayson Highlands, Virginia; the Pochuck Creek swamp, New Jersey; Nuclear Lake, New York; Thundering Falls, Vermont; and Saddleback Mountain, Maine. Except for places where the Civilian Conservation Corps was brought in (mostly in Shenandoah National Park, the Great Smoky Mountains, and Maine), the original trail often climbed straight up and down mountains, creating rough hiking conditions and a treadway prone to severe erosion. The ATC's trail crews and volunteer trail-maintaining clubs have relocated or rehabilitated miles of trail since that time.

In 1936, a 121-day Maine to Georgia veteran's group funded and supported thru-hike was reported to have been completed, with all but three miles of the new trail cleared and blazed, by six Boy Scouts from New York City and their guides. The completed thru-hike was much later recorded and accepted by the Appalachian Long Distance Hikers Association.

In 1938, the trail sustained major damage from a hurricane that went through the New England area. This happened right before the start of World War II and many of the people working on the trail were called to active duty.

In 1948, Earl Shaffer of York, Pennsylvania, brought a great deal of attention to the project by publicizing the first claimed thru-hike. The claim was later criticized for the hike's omission of significant portions due to short-cuts and car rides. Shaffer later claimed the first north-to-south thru-hike, the first to claim to do so in each direction. Chester Dziengielewski was later to be named the first south bound thru-hiker. In 1998, Shaffer, nearly 80 years old, hiked the trail, making him the oldest person to claim a completed thru-hike.

The first woman to walk the trail in a single season was Peace Pilgrim in 1952, while the first solo woman to complete the hike was 67-year old Emma Gatewood who completed the northbound trek in 1955, taking 146 days. She repeated the achievement two years later, and again in 1963, at age 75.

In the 1960s, the ATC made progress toward protecting the trail from development, thanks to efforts of politicians and officials. Wisconsin senator Gaylord Nelson offered legislation to protect the route. The National Trails System Act of 1968 designated the Pacific Crest Trail and Appalachian Trail as the first national scenic trails and paved the way for a series of such trails within the national park and national forest systems. Trail volunteers worked with the National Park Service to map a permanent route for the trail, and by 1971 a permanent route had been marked (though minor changes continue to this day). By the close of the 20th century, the Park Service had completed the purchase of all but a few miles of the trail's span.

Extensions

The International Appalachian Trail is a extension running northeast from Maine into New Brunswick and Quebec's Gaspé Peninsula, where it ends at Forillon National Park. It is a separate trail and not an official extension of the Appalachian Trail. Other branches are designated in parts of Nova Scotia, Prince Edward Island, and along the western shore of Newfoundland, to the northern end of the Appalachian Mountain range, where it enters the Atlantic Ocean, near L'Anse aux Meadows National Historic Site. The route has since been extended to Greenland, Europe, and Morocco.

Although the Appalachian Trail ends in Georgia, the Appalachian Mountains continue south to Flagg Mountain in Alabama. In 2008, the Pinhoti National Recreation Trail in Alabama and Georgia, which terminates at Flagg Mountain, was connected to the southern terminus of the Appalachian Trail via the Benton MacKaye Trail. Promoters of the Southern extension refer to MacKaye's statement at the 1925 conference that the Georgia to New Hampshire trail should, in the future, extend to Katahdin, and "then to Birmingham, Alabama". , The Pinhoti Trail terminates at the base of Flagg Mountain, near Weogufka in Coosa County, east of Birmingham. In 2010, the Alabama state legislature formed the Alabama Appalachian Mountain Trail Commission to provide state resources for trail improvements, although officially designating Pinhoti as part of the Appalachian Trail would require an act of the United States Congress.

The Appalachian Approach Trail in Georgia begins at Amicalola Falls State Park's visitor center and ends at Springer Mountain. Because Springer Mountain is in a remote area, the Approach Trail is often the beginning of North bound thru-hike attempts. Much of the Approach Trail was originally built as part of the Appalachian Trail, before the southern terminus was relocated from Mount Oglethorpe to Springer Mountain.

Flora and fauna

The Appalachian Trail is home to thousands of species of plants and animals, including 2,000 rare, threatened, endangered, and sensitive plant and animal species.

Animals

The American black bear (''Ursus americanus''), among the largest animals along the Appalachian Trail, rarely confronts people. The black bear is the largest omnivore that may be encountered on the trail, and it inhabits all regions of the Appalachians.Wingfoo
"Black Bears on the Appalachian Trail"
TrailPlace.com (accessed September 14, 2006) Bear sightings on the trail are uncommon, except in certain sections, especially Shenandoah National Park and portions of New Jersey, New York, Connecticut, and Massachusetts sections, where bear populations have increased steadily since 1980; confrontations are rarer still.
Other hazards include venomous snakes, including the Eastern timber rattlesnake and copperhead, which are common along the trail. Both snakes are generally found in drier, rockier sections of the trail; the copperhead's range extends north to around the New Jersey–New York state line, while rattlesnakes are commonly found along the trail in Connecticut and have been reported, although rarely, as far north as New Hampshire. Other large mammals commonly sighted include deer; elk, reintroduced in the Smoky Mountains; and moose, which may be found in the vicinity of Massachusetts and northward.

Small mammal species that inhabit along the trails are beaver, squirrel, river otter, chipmunk, porcupine, bobcat, two species of fox, boar, woodchuck, raccoon, and coyote. Bird species that reside in the trails are wild turkey, ruffed grouse, mourning dove, raven, two species of eagle, wood duck, three species of owl, and three species of hawk as well as warblers. There are different kinds of squirrels along the Appalachian Trail as well, especially in Maine. They are generally smaller and very territorial and will make a loud call if you come close to their home.

For most hikers, the most persistent pests along the trail are ticks, mosquitos, and black flies along with the mice that inhabit shelters.

Plants

Plant life along the trail is varied. The trail passes through several different biomes from south to north, and the climate changes significantly, particularly dependent upon elevation. In the south, lowland forests consist mainly of second-growth; nearly the entire trail has been logged at one time or another. There are, however, a few old growth locations along the trail, such as Sages Ravine straddling the Massachusetts-Connecticut border and atop higher peaks along the trail on either side of the same border, the Hopper (a glacial cirque westward of the trail as it traverses Mt. Greylock in Massachusetts), and "The Hermitage", near Gulf Hagas in Maine. In the south, the forest is dominated by hardwoods, including oak and tulip trees, also known as yellow poplar. Farther north, tulip trees are gradually replaced by maples and birches. Oaks begin to disappear in Massachusetts. By Vermont, the lowland forest is made up of maples, birch and beech, with colorful foliage displays in September and October. While the vast majority of lowland forest south of the White Mountains is hardwood, many areas have some coniferous trees as well, and in Maine, these often grow at low elevations.

There is a drastic change between the lowland and subalpine, evergreen forest, as well as another, higher break, at tree line, above which only hardy alpine plants grow. The sub-alpine region is far more prevalent along the trail than true alpine conditions. While it mainly exists in the north, a few mountains in the south have subalpine environments, which are typically coated in an ecosystem known as the Southern Appalachian spruce-fir forest. Southern ranges and mountains where sub-alpine environments occur include the Great Smoky Mountains, where sub-alpine environments only begin around in elevation, Roan Highlands on the North Carolina-Tennessee border, where sub-alpine growth descends below , and Mount Rogers and the Grayson Highlands in Virginia, where there is some alpine growth above . Appalachian balds are also found in the Southern highlands, and are believed to occur due to fires or grazing in recent centuries, or in some cases due to thin, sandy soils. Several balds are sprouting trees, and on some, the National Forest service actually mows the grasses periodically in order to keep the balds free of trees.

Geography

No sub-alpine regions exist between Mount Rogers in Virginia and Mount Greylock in Massachusetts, mainly because the trail stays below from Shenandoah National Park in Virginia to Mount Greylock. Mount Greylock, however, has a large subalpine region, the only such forest in Massachusetts, extending down to , which in the south would be far from the sub-alpine cutoff. This is especially low because Greylock is exposed to prevailing westerly winds, as the summits along its ridgeline rise approximately higher than any other peak in Massachusetts. Farther north, several peaks in Vermont reach into the sub-alpine zone, the bottom of which steadily descends as one proceeds northward, so that by the White Mountains in New Hampshire, it often occurs well below . At Mount Moosilauke, which summits at , the first alpine environment on the trail is reached, where only thin, sporadic flora is interspersed with bare rocks. Between the two regions is the krummholz region, where stunted trees grow with their branches oriented away from the winter's prevailing northwest wind, giving the appearance of flags (they are often called "flag trees"). This region resembles lowland terrain hundreds of miles north in Canada. It also contains many endangered and threatened species. The trail has been rerouted over New Hampshire's Presidential Range so the Appalachian Mountain Club can protect certain plant life. The alpine cutoff in the Whites is generally between . Mountains traversed by the A.T. above treeline include Mount Moosilauke, several miles along the Franconia Range and along the Presidential Range. In the Presidentials, the trail climbs as high as on Mount Washington and spends about continuously above treeline, in the largest alpine environment in the United States east of the Rocky Mountains.

The segments of the trail through Pennsylvania are so rocky that hikers refer to the region as "Rocksylvania". These small rocks—the result of erosion that has worn away the dirt along the trails—can be tough to walk on for extended periods of time without proper hard-soled shoes.

In Maine, the trail extends into even harsher environments, and sub-alpine and alpine growth descends to lower elevations. Alpine growth in the state ranges from around in the Mahoosuc Range to below in parts of the Hundred-Mile Wilderness,Brill, David (June 2001), "Walk This Way!". ''Men's Health''. 16 (5):68 where nearly every area higher than is evergreen forest. These forests include more species of evergreen, as well. In addition to the white pine, spruce, and hemlock prevalent further south, Maine has many cedar trees along the trail. Near the northern terminus, there are even some tamarack (larch), a coniferous, pine-needled deciduous tree, which provides displays of yellow in the late fall after the birches and maples have gone bare. The hemlocks in Maine are also notable, as the woolly adelgid, which has ravaged populations further south, has not come into the state yet, and may be unable to make it so far north due to the cold climate.

Maine also has several alpine regions. In addition to several areas of the Mahoosuc Range, the Baldpates and Old Blue in southern Maine have alpine characteristics despite elevations below . Saddleback Mountain and Mount Bigelow, further north, each only extend a bit above , but have long alpine areas, with no tree growth on the summits and unobstructed views on clear days. From Mount Bigelow, the trail extends for with only a small area of alpine growth around on the summit of White Cap Mountain. Mount Katahdin, the second largest alpine environment in the eastern United States, has several square miles of alpine area on the flat "table land" summit as well as the cliffs and aretes leading up to it. Treeline on Mount Katahdin is only around . This elevation in Massachusetts would barely be a sub-alpine region, and, south of Virginia, consists of lowland forest. This illustrates the drastic change in climate over .

Hiking the trail

Bicycles are prohibited from most of the trail, except for the sections which follow the C&O Canal in Maryland and the Virginia Creeper Trail in Virginia. Horses and pack animals are prohibited except horses on the C&O Canal and in the Great Smoky Mountains National Park. Several short segments of the trail, in towns and scenic natural areas, were built to ADA accessibly standards for wheelchair use.

Navigation

Throughout its length, the AT is marked by white paint blazes that are . Side trails to shelters, viewpoints and parking areas use similarly shaped blue blazes. In past years, some sections of the trail also used metal diamond markers with the AT logo, few of which survive.

Image:Original 1930 ATC brass diamond tree marker.jpg, Original 1930 ATC copper marker from a tree in New Jersey
Image:TJWikiOldATDiamond.jpg, An old metal diamond marker beside the trail in Maine
Image:Pennsylvania_-_Delaware_Water_Gap_-_Appalachian_Trail_-_White_Blaze.jpg, A typical white AT blaze along the trail in Pennsylvania
Image:Painted blaze.JPG, A blue side-trail blaze, on Mount Greylock in Massachusetts

Lodging and camping

Most hikers carry a lightweight tent, tent hammock or tarp. The trail has more than 250 shelters and campsites available for hikers.Nickens, T. Edward (July 2001), "Bed and Breakfast".'' Smithsonian''. 32 (4):24 The shelters, sometimes called lean-tos (in Maine, Massachusetts, and Connecticut), huts (in Shenandoah National Park), or Adirondack shelters, are generally open, three-walled structures with a wooden floor, although some shelters are much more complex in structure. Shelters are usually spaced a day's hike or less apart, most often near a water source (which may be dry) and with a privy. They generally have spaces for tent sites in the vicinity as the shelters may be full. The Appalachian Mountain Club (AMC) operates a system of eight huts along of New Hampshire's White Mountains. These huts are significantly larger than standard trail shelters and offer full-service lodging and meals during the summer months. The Fontana Dam Shelter in North Carolina is more commonly referred to as the Fontana Hilton because of amenities (e.g. flushable toilets) and its proximity to an all-you-can-eat buffet and post office. Several AMC huts have an extended self-service season during the fall, with two extending self-service seasons through the winter and spring. The Potomac Appalachian Trail Club maintains trail cabins, shelters, and huts throughout the Shenandoah region of Virginia.

Shelters are generally maintained by local volunteers. Almost all shelters have one or more pre-hung food hangers (generally consisting of a short nylon cord with an upside-down tuna can suspended halfway down its length) where hikers can hang their food bags to keep them out of the reach of rodents. In hiker lingo, these are sometimes called "mouse trapezes."

Most shelters also contain "unofficial registries", which are known as shelter logs. These logs usually come in the form spiral-bound notebooks that are kept in containers in shelters all along the trail, and signing in them is not required. These logs give hikers a way to leave day-to-day messages while they are on the trail to document where they have been, where they are going, and who/what they have seen. The logs provide a space for informal writing and can also be used to keep track of people on the trail. Most of all, they provide a system of communication for a network of hikers along the trail.

Shelter logs can provide proof of who summits certain mountains and can warn about dangerous animals or unfriendly people in the area. Hikers may cite when a certain water source is dried up, providing crucial information to other hikers.

In addition to official shelters, many people offer their homes, places of business, or inns to accommodate AT hikers. One example is the Little Lyford Pond camps maintained by the Appalachian Mountain Club. Inns are more common in sections of the trail that coincide with national parks, most notably Virginia's Shenandoah National Park.

Trail communities

The trail crosses many roads, providing opportunity for hikers to hitchhike into town for food and other supplies. The Appalachian Trail Conservancy lists over 40 communities that have qualified as part of the organization's "A.T. Community" program, having become recognized for providing food, supplies and accommodations for passers-through. In the areas of the trail closer to trail towns, many hikers have experienced what is sometimes called "trail magic," or assistance from strangers through kind actions, gifts, and other forms of encouragement. Trail magic is sometimes done anonymously. In other instances, persons have provided food and cooked for hikers at a campsite.

Hikers also create their own community while on the trail. Many hikers create long lasting friendships while on the trail. Conversations are easily started because of the common interest of hiking. There are even cases where hikers will reunite for a few days, after they've completed the trail.

Hazards

The Appalachian Trail is relatively safe. Most injuries or incidents are consistent with comparable outdoor activities. Most hazards are related to weather conditions, human error, plants, animals, diseases, and hostile humans encountered along the trail."Health and Safety"
AppalachianTrail.org (accessed September 15, 2006)

Many animals live around the trail, with bears, snakes, and wild boars posing the greatest threat to human safety. Several rodent- and bug-borne illnesses are also a potential hazard. In scattered instances, foxes, raccoons, and other small animals may bite hikers, posing risk of rabies and other diseases. There has been one reported case (in 1993) of hantavirus (HPS), a rare but dangerous rodent-borne disease affecting the lungs. The affected hiker recovered and hiked the trail the following year. The section of the trail that runs through the Mid-Atlantic and New England states has a very high population of deer ticks carrying Lyme and other tick-borne diseases, and corresponds to the highest density of reported Lyme disease in the country.

The weather is a major consideration for hikers. Hiking season of the trail generally starts in mid-to-late spring, when conditions are much more favorable in the South. However, this time may also be characterized by extreme heat, sometimes in excess of . Farther north and at higher elevations, the weather can be characterized by low temperatures, strong winds, hail or snow storms and reduced visibility. Prolonged rain, though not typically life-threatening, can undermine stamina and ruin supplies."Environmental Considerations"
AppalachianTrail.org (accessed July 15, 2016) In March 2015, a hiker was killed on the trail in Maryland when a large tree blew over and fell onto him.

Violent crime is rare but has occurred in a few instances. The first reported homicide on the trail was in 1974 in Georgia. In 1981, the issue of violence on the Appalachian Trail received national attention when Robert Mountford, Jr. and Laura Susan Ramsay, both social workers in Ellsworth, Maine, were murdered by Randall Lee Smith. Another homicide occurred in May 1996, when two women were abducted, bound and murdered near the trail in Shenandoah National Park. The primary suspect was later discovered harassing a female cyclist in the vicinity, but charges against him were dropped and the case remains unsolved. In May 2019, Oklahoman Ronald S. Sanchez Jr., 43 years old, was murdered at a campsite near Mount Rogers National Recreation Area in western Virginia Jefferson National Forest. A female hiker who has not been identified was also injured by an assailant there. James L. Jordan, 30, of West Yarmouth, Massachusetts was found not guilty of the crimes by reason of insanity.

Human error can lead to casualties as well. In July 2013, 66-year-old lone hiker Geraldine Largay disappeared on the trail in Maine. Largay became lost and survived 26 days before dying. Her remains were found two years later in October 2015. In October 2015, a hiker visiting from England was killed on the trail by falling while taking photos at the Annapolis Rocks overlook in Maryland.

Because of the 2020 COVID-19 pandemic, the Appalachian Trail Conservancy urged hikers to keep off the trail and the National Park Service announced the closing of all AT-managed hiking shelters from Virginia to Maine. Volunteers and Trail Maintenance Crews were recalled, making the trail especially unprepared for an influx of people seeking reprieve from isolation. In 2021, the threat of the COVID-19 pandemic remained and the Appalachian Trail Conservancy maintained that thru-hikers should postpone plans to hike the trail and planned to not recognize thru-hikers during the 2021 season. However, this decision was reversed, and the ATC began recognizing through-hikers for the 2021 season, issuing first-time pack hangtags on May 11, 2021.

Trail completion

Trail hikers who attempt to complete the entire trail in a single season are called "thru-hikers"; those who traverse the trail during a series of separate trips are known as "section-hikers". Rugged terrain, weather extremes, illness, injury, and the time and effort required make thru-hiking difficult to accomplish. As of 2017, the Appalachian Trail Conservancy estimated that 3,839 hikers set out from Springer Mountain, northbound, 497 from Mount Katahdin, southbound, and reported 1,186 completions of hiking the entire trail, which includes those by both section and through hikers.

Most thru-hikers walk northward from Georgia to Maine, and generally start out in early spring and follow the warm weather as it moves north. These "north-bounders" are also called NOBO (NOrthBOund) or GAME (Georgia(GA)-to-Maine(ME)), while those heading in the opposite direction are termed "south-bounders" (also SOBO or MEGA).

A thru-hike generally requires five to seven months, although some have done it in three months, and several trail runners have completed the trail in less time. Trail runners typically tackle the AT with automobile support teams, without backpacks, and without camping in the woods.

Thru-hikers are classified into many informal groups. "Purists" are hikers who stick to the official AT trail, follow the white blazes, except for side trips to shelters and camp sites. "Blue Blazers" cut miles from the full route by taking side trails marked by blue blazes. The generally pejorative name "Yellow Blazers," a reference to yellow road stripes, is given to those who hitchhike to move either down or up the trail.

Part of hiker subculture includes making colorful entries in logbooks at trail shelters, signed using pseudonyms called "trail names".

The Appalachian Trail Conservancy gives the name "2000 Miler" to anyone who completes the entire trail. The ATC's recognition policy for "2000 Milers" gives equal recognition to thru-hikers and section-hikers, operates on the honor system, and recognizes blue-blazed trails or officially required roadwalks as substitutes for the official, white-blazed route during an emergency such as a flood, forest fire, or impending storm on an exposed, high-elevation stretch. As of 2018, more than 19,000 people had reported completing the entire trail. The northbound completion rate of hiking the trail in twelve months or fewer varied from 19% to 27% from 2011 to 2018. The southbound completion rate varied between 27% and 30% during the same period.

The Appalachian Trail, the Continental Divide Trail, and the Pacific Crest Trail form what is known as the Triple Crown of long-distance hiking in the United States. In 2001, Brian Robinson became the first one to complete all three trails in a year.Ballard, Chris (November 12, 2001), "Historic Feet".'' Sports Illustrated''. 95 (19):A27 In 2018, Heather Anderson (trail name "Anish") became the first woman to complete the three Triple Crown trails in a calendar year.

Speed records

Fastest known times for self-supported attempts (meaning no vehicle or crew support, like a traditional through-hiker):
* Joe McConaughy completed the trail northbound on August 31, 2017, in 45 days, 12 hours, and 15 minutes.
*Heather "Anish" Anderson completed the trail southbound on September 24, 2015, in 54 days, 7 hours, and 48 minutes.

Fastest known times for supported attempts (the athletes travel light, relying on a support crew with food, shelter, medical treatment, etc.):

*Karel Sabbe completed the trail northbound on August 29, 2018, in 41 days, 7 hours, and 39 minutes.
* Karl Meltzer completed the trail southbound on September 18, 2016, in 45 days, 22 hours, and 38 minutes.

Age records

On November 8, 2021, M.J. "Nimblewill Nomad" Eberheart became the oldest person to hike the entire Appalachian Trail at age 83.

On October 13, 2020, Juniper Netteburg is believed to be the youngest person to hike the entire Appalachian Trail on her own power at age 4.

Route

The trail is protected along more than 99% of its course by federal or state ownership of the land or by right-of-way. The trail is maintained by a variety of organizations, environmental advocacy groups, governmental agencies and individuals. Annually, more than 4,000 volunteers contribute over 175,000 hours of effort on the Appalachian Trail, an effort coordinated largely by the Appalachian Trail Conservancy (ATC) organization. In total, the AT passes through eight national forests and two national parks.

In the course of its journey, the trail follows the ridge line of the Appalachian Mountains, crossing many of its highest peaks and running through wilderness with only a few exceptions. The trail used to traverse many hundreds of miles of private property; 99% of the trail is on public land."History"
AppalachianTrail.org (accessed June 24, 2008).

File:Hiker signing register at Springer Mountain.jpg, A hiker signs the register on Springer Mountain, Ga., southern terminus of the trail.
File:Appalachian Trail at Newfound Gap IMG 5137.JPG, Appalachian Trail at Newfound Gap in the Great Smoky Mountains National Park, N.C.
File:Accessible AT on Cross Mountain TN.jpg, Wheelchair accessible portion of the trail on Cross Mountain, near Shady Valley, Tennessee
File:Pocosin cabin.jpg, The Pocosin cabin along the trail in Shenandoah National Park, Virginia

Georgia

Georgia has of the trail, including the southern terminus at Springer Mountain at an elevation of ."Explore the Trail: Georgia"
AppalachianTrail.org (accessed July 14, 2016). At , Blood Mountain is the highest point on the trail in Georgia. The AT and approach trail, along with many miles of blue blazed side trails, are managed and maintained by the Georgia Appalachian Trail Club. See also: Georgia Peaks on the Appalachian Trail.

North Carolina

North Carolina has of the trail, not including more than along the Tennessee state line."Explore the Trail: North Carolina"
AppalachianTrail.org (accessed July 14, 2016). Altitude ranges from . The trail enters from Georgia at Bly Gap, ascending peaks such as Standing Indian Mountain, Mt. Albert, and Wayah Bald. It then goes by Nantahala Outdoor Center at the Nantahala River Gorge and the Nantahala River

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