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  • Martin Luther King, Jr. Day of Service
    Virtual Bioblitz Launch
    Join us on online Monday, January 18, 10:00 am-11:15 am
    Photo: David Greenberger
  • Share your input
    Learn about the draft concepts
    for the future of Bothin Marsh
  • One Tam Virtual Summit on Climate:
    Change and Resilience
    Join the conversation on Marin's response to Climate Change
    Photo: Kirke Wrench
  • Interactive Marin Park Access Map
    Park status information from
    our five partner agencies
    Image: Jeremiah McWright/Parks Conservancy
  • On the Lookout for Invasive Species
    Early Detection Team releases
    report on findings and response
    Photo: One Tam
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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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