The Mountains of California is a classic nature book by John Muir that vividly describes those California mountains and the wildlife found within them and is among the finest examples of John Muir nature writings.Go where you may within the bounds of California, mountains are ever in sight, charming and glorifying every landscape.

John Muir (April 21, 1838 - December 24, 1914) also known as "John of the Mountains" and "Father of the National Parks", was an influential Scottish-American naturalist, author, environmental philosopher, glaciologist and early advocate for the preservation of wilderness in the United States. His letters, essays, and books describing his adventures in nature, especially in the Sierra Nevada, have been read by millions. His activism has helped to preserve the Yosemite Valley, Sequoia National Park and many other wilderness areas. The Sierra Club, which he co-founded, is a prominent American conservation organization. The 211-mile (340 km) John Muir Trail, a hiking trail in the Sierra Nevada, was named in his honor. Other such places include Muir Woods National Monument, Muir Beach, John Muir College, Mount Muir, Camp Muir, Muir Grove, and Muir Glacier. In Scotland, the John Muir Way, a 130-mile-long route, was named in honor of him.In his later life, Muir devoted most of his time to the preservation of the Western forests. As part of the campaign to make Yosemite a national park, Muir published two landmark articles on wilderness preservation in The Century Magazine, "The Treasures of the Yosemite" and "Features of the Proposed Yosemite National Park"; this helped support the push for U.S. Congress to pass a bill in 1890 establishing Yosemite National Park.