Calendar
Featured Events
- Saturday, December 13, 2025 — 9am – 12pmMarin County ParksJoin us as we replant ferns and other native understory species in the shade of Roy's majestic redwood trees. We have thousands of plants to install, so please come out to lend a hand. Appropriate for all ages. We'll provide snacks and water. Bring gloves and a water bottle. Adverse weather or poor air quality conditions may result in cancellation. Call/text (415) 250-0941 two hours before the event to confirm the status. Registration is required.Questions: Contact Greg Reza
- Saturday, December 13, 2025Source: One Tam CalendarWhen: Saturday, December 13th, 2025, 10 am–2 pm; Where: Mt Burdell Preserve, Novato; specific meeting location will be listed in the registration confirmation email. Registration is required.
- Sunday, December 21, 2025Source: Marin County ParksOld Saint Hilary's Preserve Sunday, December 21, 2025, 7 – 8:30am
This calendar combines events from all five One Tam partners. Please confirm details before attending. If you require an accommodation to participate in an event, please contact the host organization.
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Upcoming Events
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Source: One Tam Calendar
When: Wednesdays, 10 am–2:30 pm; Registration Required
Where: Marin county; specific meeting location will be in the confirmation email after registering
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Source: One Tam Calendar
When: Wednesdays, 10 am–2:30 pm; Registration Required
Where: Marin county; specific meeting location will be in the confirmation email after registering
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Source: Marin County ParksDeer Island Preserve
Saturday, December 13, 2025, 6:30 – 8:30am -
9am – 12pmMarin County Parks
Join us as we replant ferns and other native understory species in the shade of Roy's majestic redwood trees. We have thousands of plants to install, so please come out to lend a hand. Appropriate for all ages.
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9 am-12 pmMt. Tamalpais State Park
From 9am to 12pm at Pantoll
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Source: One Tam Calendar
When: Saturday, December 13th, 2025, 10 am–2 pm;
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Source: One Tam Calendar
When: Sundays, 9:30 am–2:30 pm
Where: Marin county; specific meeting location will be in the confirmation email after registering
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Source: Marin County ParksRush Creek Preserve
Sunday, December 14, 2025, 9 – 11am -
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Source: One Tam Calendar
When: Sundays, 9:30 am–2:30 pm
Where: Marin county; specific meeting location will be in the confirmation email after registering
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Source: Marin County ParksLas Gallinas Ponds
Tuesday, December 16, 2025, 10am – 12pm -
Source: One Tam Calendar
When: 1st, 3rd, & 5th Tuesdays, 10 am–2 pm
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Source: One Tam Calendar
When: 1st, 3rd, & 5th Tuesdays, 10 am–2 pm