Near Downieville, the Downieville Loop is a 100 mile multi-day mountain bike ride combining 40 miles of singletrack with 60 miles of dirt roads and two nights of camping. The first night is near Keystone Caves and the Second night is at the Sierra Hot Springs. The route ascends Mount Lola, drops 5000, climbs again, and finishes with the 16 mile Downieville Downhill. Contact Yuba Expeditions for a map.
Overall, Downieville Loop Trail is the 93rd most popular mountain bike trail of all 132 mountain biking rides in California.