Lands End 5K

A well-marked *62 mile* trail ultramarathon in the Marin Headlands near Stinson Beach, CA, with over 11,000 feet of climb, a 15 hour 30 minute time limit and a 400 runner field limit. The race emphasizes low-waste practices and community in..

A trail race from Stinson Beach into Muir Woods offering marathon, half marathon and 7 mile options, with technical climbs, ladder and stair sections, marked aid stations, and a field limited to 300 participants.

Experience the scenery of Tilden Regional Park at the Grizzly Peak Trail Run. Choose from various distances including a 50K and marathon starting from the shores of Lake Anza in Berkeley.

An annual fundraiser at Shell Ridge Open Space in Walnut Creek supporting Sustainable Contra Costa and its youth program SLIA. Options include a 5K trail run, two 1.4 mile walking activities, and educational talks by local experts.