<p>When John Muir moved to San Francisco, he immediately left for a week-long visit to Yosemite, a place he had only read about. Seeing it for the first time, Muir noted that "He was overwhelmed by the landscape, scrambling down steep cliff faces to get a closer look at the waterfalls, whooping and howling at the vistas, jumping tirelessly from flower to flower." He climbed a number of mountains, including Cathedral Peak and Mount Dana, and hiked...