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  • Pique your pollinator curiosity!
    Photo: Sara Leon Guerrero
  • Support One Tam
    to care for Mt. Tam
    Join One Tam today
    for a healthy Mt. Tam tomorrow
    Photo by Lieven Leroy
  • Casual in Nature:

    Wildlife Picture Index Photo Exhibit

    Photo: One Tam
  • On the Lookout for Invasive Species
    Early Detection Team releases
    report on findings and response
    Photo: Allison Titus/ Parks Conservancy
  • Interactive Marin Park Access Map
    Park status information from
    our five partner agencies
    Photo: Lee Jester

Learn about Mt. Tam and get trail tips


Join One Tam to support our work and your mountain


Get involved in habitat restoration, commuity science, and more!


See all One Tam partner events

One Mountain, One Team

With its sweeping views, miles of trails, and ancient forests, Mt. Tam is a beloved local treasure. But the mountain also faces many challenges such as invasive weeds, forest diseases,
and the effects of climate change. 

The One Tam partnership mobilizes the resources of the National Park Service, California State Parks, The Marin Municipal Water District, Marin County Parks and Golden Gate National Parks Conservancy to ensure a vibrant future for Mt. Tamalpais. 

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