Download Muir Woods National Monument, Marin County, CA. Gorgeous redwood Wallpaper from the all Widescreen (4K 5K 8K Ultra HD resolutions) for mobiles, tablets and desktops devices with Microsoft Windows / Apple iOS & MacOS / Android / Linux and other devices. Muir Woods National Monument, Marin County, CA. Gorgeous redwood Wallpaper is part of the Muir Woods National Monument collection.