Napa Wilderness Trail Runs

Napa, United States • 17 May 2025

The Napa Wilderness Trail Runs, hosted by Bay Trailrunners, takes place at Skyline Wilderness Park and offers a variety of trail running distances, including 40 miles, 50K, 30K, half marathon, and 10K. This event caters to all levels of runners, from seasoned ultra-marathoners to beginners. Participants can enjoy scenic views of Napa Valley while navigating challenging trails.

The event features aid stations, post-race food, and camping options at the park. With a focus on sustainability, the race promotes a cupless system, encouraging runners to bring their own hydration containers. The event fosters a community spirit among trail running enthusiasts. Visit the organization's website for the most recent information.

Race information

40 mi
40 Mile
50 km
50k
30 km
30k
13 mi
Half Marathon
10 km
10k
Visit the organization's website for the most recent information.
Trail runs nearby

The China Camp Challenge is a running event held at China Camp State Park in San Rafael, California. Participants can choose from three distances: a 5K, 10K, or half marathon, all set against the backdrop of scenic trails and views of the Bay Area. The park offers a natural environment with a canopy..

The Go Wild! Lime Ridge 2 Hour event invites participants to explore the scenic Lime Ridge Open Space in Walnut Creek, CA. Teams of 1 to 5 will navigate through beautiful trails, majestic oaks, and grasslands using a custom map to locate up to 20 checkpoints within a 2-hour timeframe. This event emp..

The Rattlesnake Ramble is a running event featuring a 5K, 10K, and Half Marathon, available in both live and virtual formats. Scheduled for March 14-17, 2025, the event takes place at China Camp State Park in Santa Venetia, California. Participants can choose from various trail courses, each offerin..

The Napa Valley Trail Marathon, Half Marathon, and 10K is a scenic running event taking place in Bothe-Napa Valley State Park, California, on March 22, 2025. Celebrating its 33rd year, the event features challenging courses with beautiful landscapes, including hills, streams, and rocky trails. Parti..

The Big Alta is an exciting trail running event taking place in Marin County, California, organized by Freetrail and Daybreak Racing. Participants can choose between two challenging distances: a 50K and a 28K, both featuring scenic single-loop courses that showcase breathtaking views of the San Fran..

The Lag Bon 10K is a trail running event taking place in Fairfax, California, aimed at raising awareness and funds for the global water crisis through the Safe Water Now program by Evidence Action. Set against the scenic backdrop of Marin County's reservoirs, the course features a mix of technical t..