Napa Valley Endurance Run

The Napa Valley Endurance Run is a premier trail ultra event held in Calistoga, California, featuring four challenging races: 50K, 35K, half marathon, and 10K. Participants traverse scenic routes through Robert Louis Stevenson State Park and ascend to the top of Mt. St.

Helena, with the 50K often regarded as one of the toughest races in the region. The event starts and finishes at the Great Lawn in the Calistoga Fairgrounds, offering ample aid stations and post-race festivities. All finishers receive medals and t-shirts, with awards for top finishers in each category. Visit the organization's website for the most recent information.