Harold Parker State Forest features 35 miles of hiking trails near Andover, MA.
FROM BOSTON: Take 93 North to exit 41, follow 125 north (toward Andover), for about 4 miles to the State Police Barracks (on right). Turn right on Harold Parker Rd to Jenkins Rd. Turn left on Jenkins Rd, right onto Salem Rd, Headquarters is Approx 1-1 ½ miles on the left.
http://www.tripleblaze.com/trail.php?c=3&i=1032