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'Rooted in Connection' guided hike series -
Prescribed fireBringing health and balance
back to the Mt. Tam landscapePhoto: Marin Water -
Forest trails in the Bay AreaBest hikes through redwoods & morePhoto: Kirke Wrench -
News and Events -
Support One Tam
to care for Mt. TamJoin One Tam today
for a healthy Mt. Tam tomorrowPhoto by Lieven Leroy
One Mountain, One Team
With its sweeping views, miles of trails, and ancient forests, Mt. Tamalpais is a beloved local treasure. But the mountain also faces many challenges such as invasive weeds, forest diseases,
and the effects of climate change.
The One Tam partnership mobilizes the resources of the National Park Service, California State Parks, The Marin Municipal Water District, Marin County Parks and Golden Gate National Parks Conservancy to ensure a vibrant future for Mt. Tamalpais.
Join Us!
Upcoming Events
When: Wednesdays, 10 am–2:30 pm; Registration Required
When: Wednesdays, 10 am–2:30 pm; Registration Required
Saturday, December 13, 2025, 6:30 – 8:30am
Join us as we replant ferns and other native understory species in the shade of Roy's majestic redwood trees.
When: Saturday, December 13th, 2025, 10 am–2 pm;
When: 1st, 3rd, & 5th Tuesdays, 10 am–2 pm
Tuesday, December 16, 2025, 10am – 12pm
When: Wednesdays, 10 am–2:30 pm; Registration Required
Saturday, December 20, 2025, 10am – 12pm
Be a part of a successful 15-year community-based effort to restore habitat at a site once dominated by weeds and non
Old Saint Hilary's Preserve
Sunday, December 21, 2025, 7 – 8:30am
Sunday, December 21, 2025, 10am – 2pm
When: Wednesdays, 10 am–2:30 pm; Registration Required
When: 1st, 3rd, & 5th Tuesdays, 10 am–2 pm
Wednesday, December 31, 2025, 11am – 12:30pm
When: Wednesdays, 10 am–2:30 pm; Registration Required
Sunday, January 4, 2026, 10am – 1pm

