This authoritative guide for hikers and backpackers describes the 220-mile John Muir Trail, from Yosemite Valley to the summit of Mount Whitney. Stretching 220 miles from Yosemite Valley to Mount Whitney and onward to Whitney Portal, California's famed John Muir Trail (JMT) is one of the most popular backpacking routes in the US. It passes through some of the most dramatic scenery in the country: massive granite peaks, dizzying...