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The unofficial symbol of Marin County, Mount Tamalpais encompasses some of the most beautiful, ecologically rich, and well-loved open spaces in the region. But today, the mountain and the agencies that protect it face mounting challenges.

A new partnership — the Tamalpais Lands Collaborative (TLC) — combines the expertise and resources of the mountain's four land management agencies with the Parks Conservancy to help ensure a healthy future for the mountain.

But the TLC is only part of the solution. The mountain needs you. One Tam, the TLC's community campaign, offers a way for everyone to support this land we cherish. Learn more at

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