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Events
Events

See all One Tam partner events

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 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, Marin Water, Marin County Parks, and Golden Gate National Parks Conservancy to ensure a vibrant future for Mt. Tamalpais. 

Join Us!

California State Parks
Marin County Parks
Golden Gate National Parks Conservancy
Marin Municipal Water District
National Park Service

Upcoming Events

 
Landscape Stewardship
Source: Marin County Parks
McInnis Park
Wednesday, August 26, 2026, 2 – 4pm
 
Tennessee Valley
Source: Marin County Parks
Marin Headlands
Wednesday, August 26, 2026, 10am – 2pm
 
Lunar Eclipse with Marin Stargazers
Source: Marin County Parks
Mount Burdell Preserve
Thursday, August 27, 2026, 8 – 9:30pm
 
Muir Woods Night Tour
Source: One Tam Calendar

Ever wondered what Muir Woods is like after the park closes?

 
Marin Headlands Nursery
Source: One Tam Calendar

When: Saturday, August 29th, 10:00 am–1:00pm. 

 
Movie Night at Point Reyes Park
Source: Marin County Parks
Point Reyes Park
Friday, August 28, 2026, 7:30 – 9:30pm
 
Mount Burdell Plant Galls
Source: Marin County Parks
Mount Burdell Preserve
Sunday, August 30, 2026, 9am – 12pm
 
Bothin Marsh Restoration
Source: Marin County Parks
Mill Valley/Sausalito Path
Sunday, August 30, 2026, 9am – 12pm
 
Civic Center Landscape Stewardship
Source: Marin County Parks
Veterans Memorial Auditorium
Tuesday, September 1, 2026, 10am – 12pm
 
Restoration at Hal Brown Park
Source: Marin County Parks
Hal Brown Park
Wednesday, September 2, 2026, 2 – 4pm
 
Kent Island Restoration
Source: Marin County Parks
Bolinas Lagoon Preserve
Friday, September 4, 2026, 10am – 2pm
 
Summit Sips & Scenic Views
Source: Marin County Parks
King Mountain Summit
Saturday, September 5, 2026, 10am – 1pm
 
Meet Wildlife with WildCare
Source: Marin County Parks
Paradise Beach Park
Saturday, September 5, 2026, 11am – 12:30pm
 
Restoration at Hal Brown Park
Source: Marin County Parks
Hal Brown Park
Wednesday, September 9, 2026, 2 – 4pm
 
Belonging in Nature: Queer and Trans in the Nurseries
Source: One Tam Calendar

When: Saturday, September 12th, 2026, 10am – 1:00pm

 
Hamilton Wetlands Birds
Source: Marin County Parks
Hamilton Wetlands
Sunday, September 13, 2026, 10am – 2pm
 
Adventure Hike
Source: Marin County Parks
San Geronimo Park and Roy's Redwoods
Monday, September 14, 2026, 12:30 – 2:30pm
 
Tennessee Valley Tuesday Stewards
Source: One Tam Calendar

When: 3rd & 5th Tuesdays, 10 am–2 pm

 
Civic Center Landscape Stewardship
Source: Marin County Parks
Veterans Memorial Auditorium
Tuesday, September 15, 2026, 10am – 12pm
 
Coastal Cleanup at Black Point
Source: Marin County Parks
Black Point Boat Launch
Saturday, September 19, 2026, 9 – 11am
 
Coastal Cleanup at Kent Island
Source: Marin County Parks
Bolinas Lagoon Preserve
Saturday, September 19, 2026, 10am – 2pm
 
Sunset Nature Walk
Source: Marin County Parks
Terra Linda Sleep Hollow Preserve
Saturday, September 19, 2026, 5:30 – 7:30pm
 
The Road to Becoming a Park Ranger
Source: Marin County Parks
Deer Island Preserve
Sunday, September 20, 2026, 10:30am – 12:30pm
 
Coastal Cleanup at Hal Brown Park
Source: Marin County Parks
McInnis Park
Sunday, September 20, 2026, 9 – 11am
 
Coastal Cleanup at Lagoon Park
Source: Marin County Parks
McInnis Park
Sunday, September 20, 2026, 9 – 11am
 
Coastal Cleanup at McInnis Park
Source: Marin County Parks
McInnis Park
Sunday, September 20, 2026, 9 – 11am
 
Workday at the Bike Park
Source: Marin County Parks
Stafford Lake Park
Sunday, September 20, 2026, 9am – 12pm
 
Junior Rangers: Nighttime Creatures
Source: Marin County Parks
Roy's Redwoods Preserve
Sunday, September 20, 2026, 5 – 7pm
 
Bothin Marsh Restoration
Source: Marin County Parks
Mill Valley/Sausalito Path
Tuesday, September 22, 2026, 10am – 12pm
 
Muddy Hollow
Source: Marin County Parks
Point Reyes National Seashore
Wednesday, September 23, 2026, 10am – 3pm
 
Movie in the Park
Source: Marin County Parks
Point Reyes Park
Friday, September 25, 2026, 7 – 9pm
 
National Public Lands Day in Muir Woods
Source: One Tam Calendar

When: Saturday, September 26th, 8:30am - Noon.

 
Volunteer Recognition Picnic
Source: Marin County Parks
McNears Beach Park
Saturday, September 26, 2026, 11am – 2pm
 
Landscape Stewardship at Paradise
Source: Marin County Parks
Paradise Beach Park
Sunday, September 27, 2026, 9am – 12pm
 
Tennessee Valley Tuesday Stewards
Source: One Tam Calendar

When: 3rd & 5th Tuesdays, 10 am–2 pm

 
Senior Stroll: Loch Lomond Birds
Source: Marin County Parks
Loch Lomond Marina
Wednesday, September 30, 2026, 10am – 12pm
 
Limantour Birds
Source: Marin County Parks
Point Reyes National Seashore
Tuesday, October 6, 2026, 10am – 2pm
 
Civic Center Landscape Stewardship
Source: Marin County Parks
Veterans Memorial Auditorium
Tuesday, October 6, 2026, 10am – 12pm
 
Coffee with a Ranger
Source: Marin County Parks
Mill Valley/Sausalito Path
Sunday, October 11, 2026, 10am – 12pm
 
Raptors
Source: Marin County Parks
Marin Headlands
Wednesday, October 14, 2026, 10am – 2pm
 
Workday at the Bike Park
Source: Marin County Parks
Stafford Lake Park
Sunday, October 18, 2026, 9am – 12pm
 
Tennessee Valley Tuesday Stewards
Source: One Tam Calendar

When: 3rd & 5th Tuesdays, 10 am–2 pm

 
Senior Stroll: Raptors
Source: Marin County Parks
Marin Headlands
Tuesday, October 20, 2026, 10 – 11:30am
 
Pumpkin Carving (San Rafael)
Source: Marin County Parks
McNears Beach Park
Sunday, October 25, 2026, 11:30am – 1pm
 
Pumpkin Painting
Source: Marin County Parks
Stafford Lake Park
Sunday, October 25, 2026, 12 – 2pm
 
Pumpkin Carving (Point Reyes Station)
Source: Marin County Parks
Point Reyes Playground
Sunday, October 25, 2026, 12:30 – 2:30pm
 
Oaks
Source: Marin County Parks
Deer Island Preserve
Sunday, October 25, 2026, 10am – 2pm
 
Evening at Roy’s Redwoods
Source: Marin County Parks
Roy’s Redwoods Preserve
Wednesday, October 28, 2026, 3:30 – 6:30pm
 
Bolinas Lagoon Birds
Source: Marin County Parks
Bolinas Lagoon
Sunday, November 1, 2026, 10am – 2pm
 
Restoration at Hal Brown Park
Source: Marin County Parks
Hal Brown Park
Wednesday, November 4, 2026, 2 – 4pm
 
Landscape Stewardship at Paradise
Source: Marin County Parks
Paradise Beach Park
Sunday, November 8, 2026, 9am – 12pm
 
Devil’s Gulch
Source: Marin County Parks
Samuel P Taylor State Park
Tuesday, November 10, 2026, 10am – 2pm
 
Workday at the Bike Park
Source: Marin County Parks
Stafford Lake Park
Sunday, November 15, 2026, 9am – 12pm
 
Rush Creek Birds
Source: Marin County Parks
Rush Creek Preserve
Sunday, November 15, 2026, 10am – 2pm
 
Tennessee Valley Tuesday Stewards
Source: One Tam Calendar

When: 3rd & 5th Tuesdays, 10 am–2 pm

 
Civic Center Landscape Stewardship
Source: Marin County Parks
Veterans Memorial Auditorium
Tuesday, November 17, 2026, 10am – 12pm
 
Abbotts Lagoon Birds
Source: Marin County Parks
Point Reyes National Seashore
Wednesday, November 18, 2026, 10am – 2pm
 
Gratitude Scavenger Hunt/Arts & Crafts
Source: Marin County Parks
Stafford Lake Park
Sunday, November 22, 2026, 10am – 12pm
 
Senior Stroll: Las Gallinas Birds
Source: Marin County Parks
Las Gallinas Treatment Ponds
Monday, November 23, 2026, 10am – 12pm
 
Indian Tree
Source: Marin County Parks
Indian Tree Preserve
Sunday, November 29, 2026, 9am – 3pm
 
Tennessee Valley Tuesday Stewards
Source: One Tam Calendar

When: 3rd & 5th Tuesdays, 10 am–2 pm

 
Tennessee Valley Tuesday Stewards
Source: One Tam Calendar

When: 3rd & 5th Tuesdays, 10 am–2 pm

All Events

Featured Work

Path beside the base of an enormous redwood tree
Roy’s Redwoods
Long loved by the San Geronimo Valley community, Roy’s Redwoods Open Space Preserve offers visitors an immersive experience in an old-growth redwood grove.
Bothin Marsh
Because climate change is causing sea level rise, flooding is intensifying at Bothin Marsh. This project is creating a shared community vision for its future.
Monarch Habitat Enhancement
One Tam partners improving monarch butterfly overwintering and breeding habitat for restoration at key park sites.

All Programs & Projects

What People Say

I walk out of this program with more perspective and a powerful mindset, to get out there and make a change. The One Tam LINC high school program made me realize that this is exactly what I want to do with my life: be outdoors and explore, while at the same time giving back to my community.
Nhi Nguyen
LINC 2018 Student
The mountain gives to all of us selflessly and constantly. The challenge is for each of us to consider in what way we can repay the generosity. Invent something, donate, pull weeds, shore up trails, volunteer with One Tam and you will become a Tamalpaian.
Peter Coyote
Co-author and Narrator, The Invisible Peak