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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: First Saturday of every month, September until December 9 a.m.-2 p.m.
Saturday, October 4, 2025, 8am – 2pm
Sunday, October 5, 2025, 10am – 11pm
Tuesday, October 7, 2025, 10am – 2pm
When: 1st, 3rd, & 5th Tuesdays, 10 am–2 pm
When: Wednesdays, 10 am–2:30 pm; Registration Required
Saturday, October 11, 2025, 11am – 1pm
Saturday, October 11, 2025, 6 – 8pm
Wednesday, October 15, 2025, 10am – 12pm
When: Wednesdays, 10 am–2:30 pm; Registration Required
Saturday, October 18, 2025, 8 – 10am
Sunday, October 19, 2025, 11am – 1pm
When: 1st, 3rd, & 5th Tuesdays, 10 am–2 pm
When: Wednesdays, 10 am–2:30 pm; Registration Required
This guided hike invites community members to reconnect with land, self, and each other through the elements of natur
Friday, October 24, 2025, 6 – 7:30pm
Saturday, October 25, 2025, 11am – 1pm
Sunday, October 26, 2025, 10am – 12pm
Sunday, October 26, 2025, 6:30 – 8:30pm
Wednesday, October 29, 2025, 3:30 – 6:30pm
When: Wednesdays, 10 am–2:30 pm; Registration Required
Saturday, November 1, 2025, 7 – 9pm
When: 1st, 3rd, & 5th Tuesdays, 10 am–2 pm
When: Wednesdays, 10 am–2:30 pm; Registration Required
When: Wednesdays, 10 am–2:30 pm; Registration Required
When: 1st, 3rd, & 5th Tuesdays, 10 am–2 pm
When: Wednesdays, 10 am–2:30 pm; Registration Required
When: Wednesdays, 10 am–2:30 pm; Registration Required
When: 1st, 3rd, & 5th Tuesdays, 10 am–2 pm
When: Wednesdays, 10 am–2:30 pm; Registration Required
When: Wednesdays, 10 am–2:30 pm; Registration Required
When: 1st, 3rd, & 5th Tuesdays, 10 am–2 pm
When: Wednesdays, 10 am–2:30 pm; Registration Required
When: Wednesdays, 10 am–2:30 pm; Registration Required
When: 1st, 3rd, & 5th Tuesdays, 10 am–2 pm
When: Wednesdays, 10 am–2:30 pm; Registration Required