Muir the writer
Writing for outdoor magazines Muir was able to successfully communicate his love for the high country of the American West. The Sierra Nevada, Yosemite and other pristine wilderness areas provided inspiration and subject matter. Writing for periodicals such as Overland Monthly, Scribner's, Harper's Magazine and The Century made him famous.
He wrote with the passion of a Sunday preacher, an apt description given Muir's belief that the wilderness was a conduit to communicating with God. Much of America agreed with Muir, or at least yearned to experience the wild as he described it. In spreading the gospel of nature as divine, Muir became the leading authority on land that was wild and unspoiled. He wrote 300 articles and 12 major books recounting his wilderness travels and experiences. When other naturalists and politicians came calling, Muir was only too happy to share the good news with them.
Muir's activism
That other giant of the naturalist movement, Ralph Waldo Emerson, visited Muir at his cabin in Yosemite. Muir was also friendly with noted Yosemite photographer Carleton Watkins, scientists Joseph LeConte and Henry Fairfield Osborn, U.S. Forest Service Chief and naturalist Gifford Pinchot, railroad executive E.H. Harriman, and many other luminaries of the day.
As he approached later life, Muir made a conscious decision to go from living in the wild and writing about it to actively advocating for its preservation. Bonnie Gisel, curator of the Sierra Club's LeConte Memorial Lodge and the author of several books on Muir, declared, "The question was now how to protect it. By leaving, he was accepting his new responsibility. He had been a guide for individuals. Now he would be a guide for humanity."