Coastal redwoods and Douglas firs dominate the Muir Woods National Monument north of San Francisco.  Coast redwoods are the worlds tallest living species and second-most massive tree (after the giant Sequoia), reaching 370 ft in height and 22 ft in diameter.  Muir Woods National Monument, Golden Gate National Recreation Area, north of San Francisco. Muir Woods National Monument, California, USA. Image #09074
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