Public

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Join Marin County Parks and One Tam at the scenic Gary Giacomini and French Ranch Preserves as we try to identify and document every living species we see! Hone your naturalist skills, learn to use the iNaturalist smartphone app, and contribute valuable data about Mt. Tam's biodiversity.
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If the buildings in the Main Post could talk, what would they say? Join this Docent led program to find out!
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Join Marin County Parks and One Tam at the scenic Roy's Redwoods Preserve as we try to identify and document every living species we see! Hone your naturalist skills, learned to use the iNaturalist smartphone app, and contribute valuable data about our region's biodiversity.
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Learn about Marin's Climate Action Plans (CAPs) and where we stand compared to our goals. During the lecture, we will investigate the CAP for each city, town and County as well as their Greenhouse Gas Inventories.
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Explore the shore of Rodeo Lagoon with docent Jane Haley and enjoy the winter birds.
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Join volunteer Steffan Bartschat on a hike up the Marincello trail and learn about the history of the planned Marincello development while exploring the natural wonders of the Marin Headlands.
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Join One Tam for a morning of habitat restoration! We will be removing invasive French broom and other weeds near the scenic Bootjack Trail to make more space for diverse native species.
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Could you imagine living in Tennessee Valley? Think about the trails we walk and hike could have been filled with cars and homes.
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Join One Tam in our effort to control invasive French broom and maintain habitat for native plants and animals along the Old Mine Trail!
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Come join this community-based effort to install a diversity of native plants and improve animal habitat at a site once dominated by weeds! We will be mulching, planting, and/ or weeding next to a tidal marsh with a view of Mt. Tam.