From the starting line at the Bothe-Napa Valley State Park picnic area just outside Calistoga, runners in the half-marathon will run the roughly six-mile course twice. After leaving the starting line, they follow an out-and-back loop route along the park’s Coyote Peak Trail, South Fork Trail, Ritchey Canyon Trail and Redwood Trail, running alongside the waters of Ritchey Creek for much of the early and later parts of the race.
(MORE: Napa Wine Country Half Marathon event details)