Southeast of Green River, there are miles of old dirt roads to explore around Goblin Valley State Park that are open to ATV riding.
To reach the ATV riding trailhead for Goblin Valley from US70, use Exit 147. Head south on SR24 for roughtly 25 miles. Turn right heading west on Temple Mountain Road for 5 miles. Turn left heading south on Goblin Valley Road for 6 miles to the state park.
Overall, Goblin Valley is the 65th most popular ATV riding trail of all 75 ATV trails in Utah.