Mt. Tam

Check out what's new with One Tam!


Special Events

Mark your calendars for this year's One Tam Science Summit!

Into the Woods: Mt. Tam's Forests in a Changing Environment

October 5, 2018 @ Mill Valley Community Center



Volunteer and Internship Opportunities

One Tam is hiring! See our Internships  page for opportunities. 

Check out these drop-in volunteer opportunities:

• Wildlife image cataloging – August 28
• Restoration projects – September 15, September 22, September 29

There's a lot more at! Check our calendar for event details and more opportunities offered by One Tam partners.


Our Work

West Peak: After 18 months of study, the West Peak Restoration Alternatives project reached a milestone recently by releasing a perferred concept for the future of the mountain's true peak - read more here! This new vision will ensure cleanup of the site is complete; unique plant communities are enhanced and stewarded; and public access allows visitors to enjoy the breathtaking views and learn more about the unique ecology of the mountain. 

New Work Studying Pollinators Underway: Stemming from the Mt. Tam Science Summit held last fall, MMWD and San Francisco State University are set to begin inventorying pollinators, primarily bees, on the mountain this spring. This will be the first time this part of Marin has ever been surveyed for pollinators. The field season should start at the beginning of March, but may be delayed by rain. There will be a number of opportunities to volunteer with this project, including specimen processing events. Stay tuned on

New Inventory of Mt. Tam's Bats: One of the information gaps identified during the 2016 Mt. Tam health assessment was that we don’t know very much about bats on the mountain. Marin potentially supports up to 16 species of bats. This year’s study includes a number of components that will increase our understanding of bats and their ecology in Marin, and will employ several sampling methods including acoustic monitoring and mist netting. Information collected will include bat activity and species identification. The overarching goals of the study are to understand the relationships of bats and bat diversity to the landscape, the distribution of reproductive bats, and to provide insights on roosting ecology and roost selection in both summer and winter. This kind of data will contribute to our understanding of the diversity, health, and distribution of bats in the region, and inform management around protecting these species from disease. 

Learn more about bats here >>