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Tamalpa Headlands - Mill Valley

📅 August 15, 2027 (estimated date)📍 Mill Valley · United States

⚠️ 2027 edition: provisional information

The date is estimated from the 2026 edition (August 15, 2026), on the same day of the week. Courses, start times, fees and description are carried over from the previous edition: check them on the official website. This page will be updated as soon as the organizer publishes them.

Available distances

31.1 mi

About

Tamalpa Headlands - Mill Valley is a single-loop 50K (31-mile) trail race near Mill Valley, presented by Arc'teryx and Tamalpa Runners, starting at 7:30 a.m. on August 15, 2027. It links Marin County's signature trails, Coastal, Miwok, Steep Ravine, Matt Davis and Dipsea, for roughly 6,600 feet (about 2,000 m) of elevation gain.

Fast fire roads, steep climbs, flowing singletrack and technical sections alternate along the way, with views over San Francisco Bay and the Pacific Ocean. The start and finish are at Santos Meadow in the Muir Woods forest, where a festive post-race atmosphere awaits.

D-301

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