North of Augusta near Skowhegan, the Back 40 MX (formerly Skowhegan Motocross Park) has both a motocross track and an ATV track. The motocross track is beginner-friendly with a 35+ foot tabletop jump and a challenging stepup.
To reach Skowhegan Motocross Park from US95, use Exit #36 (Skowhegan). Turn north on SR201 for 7 miles into Hinkly. Turn right on SR23. Just past the large bridge, turn left on River Road for 3 miles to Skowhegan Motocross Park.
Overall, Back 40 MX is the 14th most popular dirt bike trail of all 15 dirt biking rides in Maine.