• Visitors from all over the world come to explore the tranquility, beauty, and nature sounds of Muir Woods National Monument.

    Muir Woods

    National Monument California

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  • All Trails at Muir Woods are Open. Green Gulch Trail at Muir Beach to Close

    The Green Gulch Trail from Kaasi Road will be closed for restoration construction on the weekdays from 7 AM - 4:30 PM beginning early August through October 2014. Full trail access will be available during evening hours and weekends. Signs will be posted. More »

  • 7 Ranger's Tips on How to Experience Muir Woods Safely This Summer or How to Find Parking

    Summer is the busiest for Muir Woods. Parking is limited. Often visitors find shoulder parking and walk on the narrow road to the Visitor Center. Read the ranger's tips on the Best Times to Visit Muir Woods. On weekends & holidays, take Muir Woods Shuttle More »

  • Ride the Muir Woods Shuttle. Summer is the busiest time for Muir Woods. Parking limited.

    Muir Woods is experiencing high numbers of visitors. Summer traffic and unsafe parking behaviors are adding stress to visitors and residents. Expect delays on Hwy 1 as people drive to and from Muir Woods and local beaches. Read 7 Ranger's Tips on Parking. More »

  • Muir Beach is OPEN but Muir Beach Overlook closed until August 1, 2014.

    Muir Beach is open but the Muir Beach Overlook is closed for construction until August 1, 2014. Muir Beach is open to the public every day, including holidays at 9 AM and closes one hour after sunset.

Plants

What is an old-growth forest and how is it different from other forests ?

Muir Woods is the only old-growth coastal redwood forest in the Bay Area and one of the last on the planet. It is estimated that nearly 2 million acres of forest just like Muir Woods once covered a narrow strip along the coasts of California and Oregon. Today, 97% of this has been impaired or altered and most coastal redwoods now grow on protected second and third growth forests or managed timber plantations. Thanks to William Kent's preservation efforts, Muir Woods was spared this fate and remains as a very accessible yet prime example of an old-growth forest.

The term old-growth is difficult to define. Old-growth cannot solely be determined by size or age of the trees within a forest because these qualities vary widely with species. However, there are four characteristics that slowly develop through time, and together define an old-growth forest.

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Did You Know?

Banana Slug moving accross trail in Muir Woods

Banana Slugs are North America’s largest land mollusk. They are a gastropod which means footed stomach. They crawl along the forest floor crunching up and decomposing dead material. More...