Northwest of Yuba City and west of Stonyford in the Mendocino National Forest, the Davis Flat area (aka Stonyford OHV) has 200 miles of OHV routes ranging from 1,700 feet to 6,000 feet in elevation.
To reach the trailhead from US5, use Exit 585. Head west on Maxwell Sites Road. Veer right on Sites Lodoga Road and veer right on Lodoga Stonyford Road to Stonyford. Turn left on Fouts Spring Road (SR43A) for 7 miles. Turn right on Old Fouts Spring Road to the Davis Flat / Fouts Springs OHV Staging Area.
Overall, Davis Flat OHV is the 93rd most popular OHV & 4wd jeep trail of all 102 OHV routes in California.