With well over 9,000 ft of elevation gain, the Sonoma ULTRA arguably stands as one of the toughest 50K’s in California. The half-marathon, not to be outdone, also holds its own boasting nearly 4,000 ft of gain and tough, grinding climbs.
Nestled in the hills above Kenwood, Hood Mountain Regional Park and Sugarloaf Ridge State Park feature amazing scenery and an extensive network of trails to explore.
(This trail race takes place in October each year. Visit race website link below for details.)
Location: California, United States
Geographic Area: Hood Mountain Regional Park
Nearby City: Santa Rosa
Race Length: 50 km (31.1 mi)
9,640 feet (+310 ft/mi)
80% dirt trails, 19% dirt roads, 1% paved
Race Length: 13.1 miles (21.1 km)
3,799 feet (+290 ft/mi)