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Mt. Tam Wild Boar Half Marathon

Mill Valley, United States • 26 Apr 2025

The Mt. Tam Wild Boar Half Marathon & 10K is an annual trail running event held at Mt. Tamalpais State Park in Mill Valley, California.

Celebrating its 37th year, the race features a scenic course combining paved roads and single-track trails along Bolinas Ridge, offering stunning views of the Pacific Ocean, Bolinas Lagoon, and Marin County watershed. The half marathon follows Ridgecrest Boulevard and Coastal Trail, while the 10K turns back earlier via Willow Camp Trail. Limited to 300 participants, the event emphasizes safety with no headphones allowed on narrow trails.

Aid stations, participant T-shirts, and medals for half marathon finishers enhance the experience. Visit the organization's website for the most recent information.

United States California Mill Valley

Race information

Registration
13 mi
Half Marathon
10 km
10k
Visit the organization's website for the most recent information.
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