The John Muir Trail (JMT) is a long-distance trail in the Sierra Nevada mountain range of California, passing through Yosemite, Kings Canyon and Sequoia National Parks. From the northern terminus atHappy Isles in Yosemite Valley (37.7317°N 119.5587°W) and the southern terminus located on the summit of Mount Whitney (36.5785°N 118.292°W), the Trail's official length is 210.4 miles (338.6 km). For almost all of its length, the trail is in the High Sierra backcountry and wilderness areas. For about 160 miles (260 km), the trail, named for naturalist John Muir, follows the same footpath as the longerPacific Crest Trail.

The vast majority of the trail is situated within designated wilderness. The trail passes through large swaths of alpine and high mountain scenery, and lies almost entirely at or above 8,000 feet (2,400 m) in elevation. About 35% of the trail, including the entirety of the last 30 miles (48 km), lie above 10,000 feet (3,000 m). The trail has been described as "America's most famous trail"; known for its relative solitude, the trail sees about 1,500 thru-hiking attempts each year (including Pacific Crest Trail thru-hikers), much fewer than the number of attempts on comparable walks such as the southern portion of Appalachian Trail or the Way of St. James.

Source: http://en.wikipedia.org/wiki/John_Muir_Trail