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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
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
Follow the Tam Van! to various park sites and discover how our forests are changing—and how yo
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
at 8pm at the Pantoll Stage in the Pantoll Campground
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
Sunday, July 13, 2025, 10am – 1pm
Monday, July 14, 2025, 10am – 12pm
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
When: 1st, 3rd, & 5th Tuesdays, 10 am–2 pm
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
Hummingbirds Guided Hike with Docent Franklin Young
Starts at 5pm at the Mou
Wednesday, July 16, 2025, 10am – 2pm
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
Follow the Tam Van! to various park sites and discover how our forests are changing—and how yo
at 8pm at the Pantoll Stage in the Pantoll Campground
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
Follow the Tam Van! to various park sites and discover how our forests are changing—and how yo
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
Wednesday, July 23, 2025, 2 – 3pm
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
Follow the Tam Van! to various park sites and discover how our forests are changing—and how yo
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
Follow the Tam Van! to various park sites and discover how our forests are changing—and how yo
at 8pm at the Pantoll Stage in the Pantoll Campground
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
Sunday, July 27, 2025, 11am – 1pm
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
Sunday, July 27, 2025, 8:30 – 10:30pm
When: 1st, 3rd, & 5th Tuesdays, 10 am–2 pm
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
Saturday, August 2, 2025, 9 – 10:30am
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
Monday, August 4, 2025, 10am – 2pm
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
When: 1st, 3rd, & 5th Tuesdays, 10 am–2 pm
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
Wednesday, August 6, 2025, 10am – 1pm
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
Friday, August 8, 2025, 5:30 – 7:30pm
Saturday, August 9, 2025, 1 – 2:30pm
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
When: 1st, 3rd, & 5th Tuesdays, 10 am–2 pm
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
When: 1st, 3rd, & 5th Tuesdays, 10 am–2 pm
When: 1st, 3rd, & 5th Tuesdays, 10 am–2 pm
When: 1st, 3rd, & 5th Tuesdays, 10 am–2 pm
When: 1st, 3rd, & 5th Tuesdays, 10 am–2 pm
When: 1st, 3rd, & 5th Tuesdays, 10 am–2 pm
When: 1st, 3rd, & 5th Tuesdays, 10 am–2 pm
When: 1st, 3rd, & 5th Tuesdays, 10 am–2 pm
When: 1st, 3rd, & 5th Tuesdays, 10 am–2 pm
When: 1st, 3rd, & 5th Tuesdays, 10 am–2 pm
When: 1st, 3rd, & 5th Tuesdays, 10 am–2 pm