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Thru-hiking, or through-hiking, is the act of hiking an established end-to-end trail or long-distance trail with continuous footsteps.


In the United States, the term is most commonly associated with the Appalachian Trail (AT), the Pacific Crest Trail (PCT), and the Continental Divide Trail (CDT), but may also refer to other end-to-end hikes. Other examples of thru-hikes include Te Araroa in New Zealand, the Camino de Santiago in Spain and France, the HexaTrek in France, the Via Francigena in France and Italy, the Va Sentiero in Italy, the Lycian Way in Turkey, the Israel National Trail, and the Great Divide Trail (GDT) in Canada.

The Appalachian Trail Conservancy (ATC) defines a thru-hike as a hike of the entire AT in 12 months or less. A “2,000-miler” is a hiker who has walked the entire length of the AT and reported his or her hike completion to the ATC, which has kept records of thru-hike completions since 1937. (The ATC uses the term “2,000-miler” since the exact length of the trail changes regularly due to pathway relocations.) In recognizing 2,000-milers, the ATC doesn’t consider the sequence, direction, or speed of the hike or whether the hiker carries a pack. The ATC will recognize anyone who completes the entirety of the Appalachian Trail as a 2,000-miler regardless of whether the trail was completed as a Thru-Hike or a series of Section hikes [1] This definition is used by many groups within the United States.[ citation needed ]

Section hiking, on the other hand, refers to hiking a trail one section at a time, without continuity and not necessarily in sequence with the other sections or within one hiking season.


Thru-hiking's origins date back many years, when long-distance foot travel as a means of transportation began to merge with hiking for its own enjoyment and as a means of seeing the world.

A thru-hiker named George W. Outerbridge completed the first section hike of the newly completed Appalachian Trail in 1939; trail promoter Myron Avery had previously section-hiked while trail blazing.

Earl Shaffer became the first to have publicly thru-hiked the AT in 1948. [2] A 1994 report claimed that a group of Boy Scouts had done so twelve years earlier, but these claims have never been adequately documented. Therefore, they are considered highly suspect in most hiking circles (see Appalachian Trail).

A number of thru-hikers have achieved a measure of celebrity in backpacking culture. Perhaps the most famous was Emma "Grandma" Gatewood, who first thru-hiked the Appalachian Trail in 1955 at age 67. She completed the hike with what, even at that time, was considered extremely inadequate gear, including sneakers rather than boots and a blanket rather than a sleeping bag; [3] she later completed a second thru-hike and a full section hike and is recognized today as a pioneer of ultralight backpacking.


A hiker who has just completed the Appalachian Trail Northterm.jpg
A hiker who has just completed the Appalachian Trail

Thru-hiking a trail is a long and difficult journey: an AT thru-hike, for example, takes five months on average, covering 2,189.2 miles (3,523.2 km). A PCT or CDT thru-hike also entails several months of planning in order to prepare gear and re-supply points. These two trails also take 4–6 months to complete. Thru-hikers can organize supplies for the journey far in advance, and have friends and family mail packages to predetermined stops along the way, to be picked up as general delivery. These caches-via-mail are usually referred to as "supply boxes". The most popular method, however, is to resupply roughly every three to five days at a village or town that is close to the trail. This cuts down on unnecessary planning and offers a greater degree of flexibility.

The Continental Divide Trail does not have one official route. As of 2013, about 76% of the trail has been completed according to the CDT Coalition.

Many people choose to forego thru-hiking, due to time constraints or lack of desire, and instead section-hike a trail, completing it piece by piece, often over many years.

With the rise of backpacking in the United States, thru-hiking has become a minor industry. Thousands of hikers attempt to thru-hike the AT and other National Scenic Trails every year, although by some estimates fewer than 20% complete the trail. Roughly 150 end-to-end the (much shorter) Long Trail, and about 180 thru-hike the Pacific Crest Trail each year. Some dedicated thru-hikers complete a trail more than once; about 30 have reported hiking the AT at least three times. Lee Barry became the oldest to thru-hike the AT when he completed a thru-hike (his second) in 2004 at age 81. [4]

The Appalachian Trail Conservancy has reported completion rates around 25% in recent years, after several years under 20%. [5] They attribute this to slightly lower numbers of hikers, better gear, and, thanks to the internet, information about gear, causing fewer hikers to start with 60 to 80 pounds (27.2–36.3 kg) packs and drop out a few miles in. [5] Those long-distance hikers who have completed all three of the nation's longest National Scenic Trails: The Appalachian Trail, The Pacific Crest Trail and The Continental Divide Trail are known as Triple Crowners. [6] Base pack weight in this group of hikers is in the range of 10 to 15 pounds (4.5–6.8 kg).[ citation needed ]

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The Appalachian Trail, is a hiking trail in the Eastern United States, extending almost 2,200 miles (3,540 km) between Springer Mountain in Georgia and Mount Katahdin in Maine, and passing through 14 states. 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.

<span class="mw-page-title-main">Pacific Crest Trail</span> Long-distance hiking and equestrian trail in the western US

The Pacific Crest Trail (PCT), officially designated as the Pacific Crest National Scenic Trail, is a long-distance hiking and equestrian trail closely aligned with the highest portion of the Cascade and Sierra Nevada mountain ranges, which lie 100 to 150 miles east of the U.S. Pacific coast. The trail's southern terminus is next to the Mexico–United States border, just south of Campo, California, and its northern terminus is on the Canada–US border, upon which it continues unofficially to the Windy Joe Trail within Manning Park in British Columbia; it passes through the states of California, Oregon, and Washington.

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Earl V. Shaffer, was an American outdoorsman and author known from 1948 as The Crazy One for attempting what became the first publicized claimed hiking trip in a single season over the entire length of the Appalachian Trail (AT). He also worked as a carpenter, a soldier specializing in radar and radio installation, and an antique dealer.

<span class="mw-page-title-main">Grandma Gatewood</span>

Emma Rowena (Caldwell) Gatewood, known as Grandma Gatewood,, was an American ultra-light hiking pioneer. After a difficult life as a farm wife, mother of eleven children, and survivor of domestic violence, she became famous as the first solo female thru-hiker of the 2,168-mile (3,489 km) Appalachian Trail (A.T.) in 1955 at the age of 67. She subsequently became the first person to hike the A.T. three times, after completing a second thru-hike two years later, followed by a section-hike in 1964. In the meantime, she hiked 2,000 miles (3,200 km) of the Oregon Trail in 1959. In her later years, she continued to travel and hike, and worked on a section of what would become the Buckeye Trail. The media coverage surrounding her feats was credited for generating interest in maintaining the A.T. and in hiking generally. Among many other honors, she was posthumously inducted into the Appalachian Trail Hall of Fame in 2012.

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  1. "Frequently Asked Questions". Appalachian Trail Conservancy. 31 January 2020. Retrieved 28 March 2021.
  2. Earl V. Shaffer (2004), Walking With Spring, Harpers Ferry, W. Va.: Appalachian Trail Conference, ISBN   0-917953-84-3
  3. Freeling, Elisa (November–December 2002), "When Grandma Gatewood hiked the Appalachian Trail", Sierra
  4. About the Trail – Noteworthy 2,000-Milers, Appalachian Trail Conservancy, 3 January 2020
  5. 1 2 About the Trail – 2,000-Milers in Recent Years, Appalachian Trail Conservancy, 3 January 2020
  6. "Triple Crown | ALDHA-West".