Does today’s visitor trekking Yosemite National Park find it much different from what John Muir encountered a century ago? Thomas and Geraldine Vale retrace Muir’s path, based upon journal descriptions of his activities and experiences during his first summer in the Sierra Nevada Mountains. From the foothills through Yosemite Valley and on up to the Tuolumne Meadows, the Vales follow the present roads and trails that crossed Muir’s route, imagining his reaction to the landscape while reflecting on the natural world in both his time and ours. Illustrated with drawings by John Muir and drawings and photos by the Vales, Walking with Muir across Yosemite emphasizes that current visitors to Yosemite—indeed to any national park—can still experience the solitude, wildness, and romanticism of nature. They believe, however, that this modern exploration would benefit from a national parks policy that actively promotes nature study and encourages a more profound interaction between humans and the natural world.