East of Sacramento near Rancho Cordova, the Hangtown MX area has a motocross track.
At downtown Sacramento take Highway 50 East (towards Lake Tahoe) for approximately 15 miles to Sunrise Blvd Turn south (right) on to Sunrise to White Rock Road. turn left on Whiterock rd until it ends, then turn left and proceed to the spectator gate. Turn right (south) into park.
Overall, Hangtown Motocross is the 100th most popular dirt bike trail of all 120 dirt biking rides in California.