Harold Parker State Forest is a publicly owned forest with recreational features encompassing more than 3,300 acres in the towns of Andover, North Andover, North Reading, and Middleton, Massachusetts. Ponds, swamps, rolling hills, glacial erratics and rocky outcroppings can be found in the state forest, which features more than 35 miles of backwoods roads and trails as well as remnants of 18th-century farming and milling operations.