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Muir Woods National Monument

Cathedral Grove at Muir Woods National Monument. Photo credit: Tonatiuh Trejo-Cantwell

Want to go to Muir Woods? Be sure to RSVP!

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Beginning January 16, 2018, visitors will need reservations to park at or ride the shuttle to Muir Woods National Monument. The new reservation system will prevent visitor overcrowding and help keep the forest green and vibrant for generations to come.

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The Memorial Service for President Roosevelt among the redwoods at Muir Woods on May 19, 1945. Courtesy of The Bancroft Library, University of California, Berkeley.

United Nations at Muir Woods 70 Years Ago

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On May 19, 1945, more than 500 United Nations delegates came from the first U.N. peace conference in San Francisco to gather at Muir Woods National Monument. At the time of this historic event, World War II was not yet over. … Continued

Cathedral Grove at Muir Woods National Monument. Photo credit: Tonatiuh Trejo-Cantwell

Establishing Muir Woods National Monument

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“Whatever occupation man may follow, there is planted within him a need of nature, calling gently at him at times to come and enjoy, imperiously commanding at other times to seek recuperation and strength.” — William Kent Have you ever … Continued

Redwood Canopy Video

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Climbers took to the coast redwood treetops at Muir Woods National Monument for the first time this spring. Their canopy exploration was part of BioBlitz 2014, a massive effort to learn about and celebrate the biodiversity of Golden Gate National Recreation. … Continued

Meet the Treetop Lichen

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Lichens contribute such beautiful colors to our redwood forests, growing elegantly on trees, fallen logs, and rocks. Each lichen you see is actually a symbiotic partnership — algae or cyanobacteria wrapped up in a fungal package. Thanks to canopy biologists Rikke Reese Næsborg, Cameron Williams, Marie Antoine, and … Continued

During BioBlitz 2014, League scientists climb and explore the tallest trees in Muir Woods for the first time ever.

First Canopy Exploration at Muir Woods

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This time last week, our intrepid research partners were ascending up into the tall trees of Cathedral Grove at Muir Woods National Monument. This historic first climb was part of BioBlitz 2014, a massive effort throughout the Golden Gate National … Continued

Crown‐mapping involves measurements of heights, diameters, distances, and azimuths of all branches. Here Jim Spickler (left) extends a steel tape to measure the horizontal extension of a dead branch while Bob Van Pelt (right) records the measurement. Photo by Stephen Sillett, Institute for Redwood Ecology, Humboldt State University

Countdown to BioBlitz!

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In 21 days we will have a major scientific event happening throughout the Bay Area: the 2014 National Park Service BioBlitz. Here at the League we are busy preparing for this 24-hour exploration of the ecologically diverse areas of the … Continued

Where have all the flowers gone?

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“Where have all the flowers gone? Long time passing.”  -Pete Seeger Over 170 years ago, early loggers began extracting redwood from the San Francisco bay area. The trees they cut were monumental and today we can still find the remnant stumps … Continued

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