The John Muir Trail is one of the world’s greatest treks and is North America’s best-known mid-distance walking trail. It runs for 216 miles through the high Sierra Nevada mountains of California, from Yosemite Valley in the north to the summit of Mt. Whitney above Lone Pine in the south, and takes about three weeks to complete.
The route is largely a wilderness experience, and this intensifies as one progresses along the Trail from the relative civilization between Yosemite to Tuolumne, where there are many day-trippers and other walkers, to the huge wilderness areas further south, particularly after the Muir Trail Ranch. Tourists are once again encountered in the form of day walkers on Mount Whitney, during the very last stages of the Trail.
-Alan Castle, The John Muir Trail (2004)