Mt. Tam

Check out what's new with One Tam!


Special Events

Wednesday, May 17, 4-6pm: Azalea Hill Wildflower Hike. Led by Rachel Kesel, One Tam’s Conservation Management Specialist.

Saturday, May 20, 9am-3pm: Bioblitz at Gary Giacomini Preserve. Help build knowlege about Mt. Tam’s biodiversity.

Saturday, May 27, 10am-1:30pm: Geology of West Peak. Join local geologists and engineers to learn more about the geology of West Peak, and how this informs restoration alternatives.

Saturday, June 3, 9am-12pm: National Trails Day. Help with trail projects at various sites across the mountain. 

Saturday, June 17, 10am-1:30pm: Rare Habitats of West Peak and the Mt. Tam Region. Explore West Peak and its environs as you learn more about the unique plants and plant communities that call West Peak and the mountain’s ridge tops home.

Saturday, June 24, 10am-1:30pm: Hydrology of West PeakLearn more about how the hydrology of West Peak influences the watersheds it feeds, and how geology and climate in turn influence the mountain’s hydrology. 

Volunteer Opportunities

Check out these drop-in opportunities:

• Wildlife image cataloging – May 18 & May 23
• Habitat restoration at Phoenix Lake – May 20
• Trails and restoration projects – check back soon!

Check for details and more opportunities offered by One Tam partners.


West Peak Restoration

One Tam has begun an 18-month study of restoration alternatives for Mt. Tam's West Peak, the goal of which is to understand technical constraints and opportunities related to the restoration of natural habitats and processes. This will serve as the basis for developing eventual alternatives for MMWD and public review. Visit the West Peak page to learn more about this special site and ways you can participate in the process.


New Library Parks Pass Program

The County of Marin, Marin County Free Library, and One Tam are partnering on a new program that increases access for residents for whom entrance fees may pose a barrier to visiting parks. Library card holders can check out a pass for free entry to beautiful local parks, and a backpack full of information to help explore them. Available at all 10 branches of the Marin County Free Library and Bookmobile starting April 9.

Conservation Science

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