One Tam

CANCELED: Earth Day at Hal Brown Park - Hosted by Marin County Parks and One Tam

The creation of Earth Day on April 22, 1970 marked what many consider to be the birth of the environmental movement.

Trail work on the Heather Cutoff Trail on National Trails Day

Habitat Restoration at Creekside Marsh - Hosted by Marin County Parks and One Tam

Come join Marin County Parks and One Tam in this community-based effort to improve habitat while preparing for sea level rise.

(CANCELED) Habitat Restoration at Creekside Marsh - Hosted by Marin County Parks and One Tam

Hal Brown Park at Creekside

Come join Marin County Parks and One Tam in this community-based effort to improve habitat while preparing for sea level rise.

Nature Space: Kayak Mill Valley's Evolving Shoreline

Kayak along the tidal marshes in Richardson Bay and learn about the history of Bothin Marsh and how Marin County Parks and One Tam are planning for sea level rise.

Mt. Tam Mycoblitz

Lake Lagunitas Parking Lot

Join Marin Municipal Water District, One Tam and the California Academy of Sciences at Lake Lagunitas to investigate mushroom biodiversity in this mycoblitz. Hone your naturalist skills, participate in community (citizen) projects through the North American Mycoflora Project and iNaturalist and become our scientific collaborator for a day!