• 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

There are park alerts in effect.
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  • Muir Beach Closed (not Muir Woods) July 8th - November 2013

    This alert applies to Muir Beach, and not Muir Woods. Muir Beach closed July 8th - November 2013 for restoration/construction. No restrooms or parking available at Muir Beach during this period. Check back for updates or call (415)561-3054. More »

  • Foggy Road Conditions

    Adverse weather may cause delays on roads leading to Muir Woods. See Mill Valley on 511.org for traffic info. In heavy fog, use low-beam headlights. Tail-lights will be visible to drivers behind you.

Invertebrates of Muir Woods

Banana Slug
Banana Slug traveling across the forest floor.
National Park Service

Visitors to Muir Woods often comment on the lack of wildlife. But if they were to get out a magnifying glass, they would see that life in the redwood forest is not only abundant, it is everywhere; it's just smaller than they expected. From the dramatic and beautiful, such as butterflies and slugs, to the microscopic, such as springtails, the invertebrates of the Monument play a vital role in the health of Muir Woods.

Did You Know?

United Nations in Muir Woods National Monument in 1945

Muir Woods’ Cathedral Grove hosted the first United Nations conference May 19, 1945. Present were delegates from 48 nations to establish a lasting peace following the Second World War. More...