They followed Muir's footsteps across California, then found his words to describe it

So, 150 years ago on April 1, Muir set off on foot from San Francisco to Yosemite. After a ferry trip to Oakland, the not-yet-famous naturalist made his way on a 310-mile ramble; south to Gilroy, east through the Pacheco Pass, across the Central Valley, then into the Sierra. Six weeks later, he arrived in Yosemite Valley, a place where he would return many times.