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  • Bioblitz Your Backyard
    City Nature Challenge offers way to stay connected while apart
    Photo: Lieven Leroy
  • Marin Updates Park Access Guidelines
    County extends guidance against driving to parks
    Photo: Monica Stafford
  • What happened to our trout?
    Teacher records 'Trout in the Classroom' release
    Photo: Paul Myers
  • Bats Are Bellwethers
    One Tam partners are studying
    what bats can teach us about One Tam's health
    Photo by Alison Taggart-Barone
  • Bees Bring
    Tam Together
    This 40,000 specimen study
    will reveal a lot about
    the health of our mountain
    Photo by Will Elder, NPS
  • Mt. Tam needs you!
    There are ways for everyone to care for the mountain
    Find yours here!
    Photo by Paul Myers
  • Support One Tam
    to care for Mt. Tam
    Join One Tam today
    for a healthy Mt. Tam tomorrow
    Photo by Lieven Leroy

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!


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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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