Southeast of Mount Vernon and southwest of Harrisburg in Saline County, the Williams Hill Pass Association has 17 miles of ATV trails over 220 acres. There are hills, wooded routes and an open field track. This is a great place to bring the family to ride.
Note: Helmets are required. The area is open on Thursday through Sunday.
To reach the ATV riding trailhead for Williams Hill Pass OHV Area from US57 in Marion, use Exit #54. Head east on SR13 for 22.3 miles into Harrisburg. Turn right heading south on SR45 for 0.8 miles. Turn left heading south on SR34 for 7.2 miles. Turn right heading south on Peak Road for 2 miles to the trailhead parking area. You must register at the main lodge before riding.
Overall, Williams Hill Pass is the 4th most popular ATV riding trail of all 15 ATV trails in Illinois.