The John Muir Trail (JMT) (Paiute: Nüümü Poyo, N-ue-mue Poh-yo) 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 at Happy Isles in Yosemite Valley and the southern terminus located on the summit of Mount Whitney, the trail's length is 213.7 miles, with a total elevation gain of approximately 47,000 feet. For almost all of its length, the trail is in the High Sierra backcountry and wilderness areas.[a] For about 160 miles (260 km), the trail follows the same footpath as the longer Pacific Crest Trail. It is named after John Muir, a naturalist.
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 in elevation. The trail sees about 1,500 thru-hiking attempts each year (including PCT thru-hikers), many fewer than the number of attempts on comparable walks such as the southern portion of the Appalachian Trail or the Way of St. James. It has been described as "America's most famous trail".