Harold Parker State Forest is a Massachusetts state forest located in portions of four towns: Andover, North Andover, North Reading and Middleton. Ponds, swamps, rolling hills, glacial erratics and rocky outcroppings can be found in the 3,294-acre (1,333 ha) forest. The forest features more than 35 miles (56 km) of backwoods roads and trails as well as remnants of 18th-century farming and milling operations. The park is managed by the Massachusetts Department of Conservation and Recreation.