Join us for an exploratory stroll into the different habitats and rich diversity around Lake Lagunitas at the peak of Mt. Tam’s mushroom season.

Come join this community-based effort to install a diversity of native plants and improve animal habitat at a site once dominated by weeds!

Join Marin County Parks and One Tam at Roy’s Redwoods as we try to identify and document every fungus species we see!

Come join this community-based effort to install a diversity of native plants and improve animal habitat at a site once dominated by weeds!

Meet National Park Service volunteer Walter Coe at his drop-in interpretive session in the Presidio Visitor Center.  No reservations required.

Calling all photography lovers, observe Golden Gate National Parks through a new lens!

Join One Tam in our effort to save native grasslands from encroaching coastal scrub habitat!

Join One Tam in our effort to save native grasslands from encroaching coastal scrub habitat!