Muir Woods National Monument, 12 miles north of the Golden Gate Bridge on the southwestern slope of Mount Tamalpais, can be reached via US 101 and SR 1. Named for Scottish-born American conservationist and Sierra Club founder John Muir, 560-acre Muir Woods preserves a stand of Sequoia sempervirens, or coast redwoods—trees that once blanketed coastal valleys in much of northern California. A very tall evergreen (some specimens reach more than 250 feet in height), the coast redwood also can live to be more than 1,000 years old. Learn More...