Near Oroville, the 28,450 acre Lake Oroville State Recreation Area has large trail system.
To reach the hiking trailhead from Highway 70, go east on Highway 162 (Oroville Dam Blvd.). Continue on Oroville Dam Blvd., turning right at Olive Hwy. (Highway 162), proceed approximately 6 miles on Olive Highway to Kelly Ridge Road. Turn left and Kelly Ridge Road ends in the Visitor Center parking lot.
Overall, Lake Oroville State Recreation Area is the 53rd most popular hiking trail of all 88 hikes in California.