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Bee Lab BuzzPhoto: Sara Leon Guerrero
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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.
Tuesday, June 17, 2025, 10am – 2pm
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.
When: Wednesdays, 10 am–2:30 pm; Registration Required
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.
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.
Sunday, June 22, 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.
Wednesday, June 25, 2025, 10am – 12pm
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
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.
Sunday, June 29, 2025, 11am – 1pm
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
Tuesday, July 1, 2025, 10am – 12pm
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
When: Wednesdays, 10 am–2:30 pm; Registration Required
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
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.
Tuesday, July 8, 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.
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.
Sunday, July 13, 2025, 10am – 1pm
Join a Muir Woods Ranger in a grove of towering Coast Redwoods for a 15-minute talk.
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.
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
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.
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
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.
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.
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.
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