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  • City Nature Challenge 2021
    is almost here!
    The fun and the science
    start 4/29 at One Tam
    Photo: One Tam
  • Casual in Nature:

    Wildlife Picture Index Photo Exhibit

    Photo: One Tam
  • Protect Mt. Tam's Rare Foothill Yellow-legged
    Frogs at Little Carson Falls
    Photo: Kevin Wiseman / GANDA
  • 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
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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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