The Hopkinton Trails Club will host a guided walk of Old Town Road on Saturday, Sept. 20, at 10 a.m. This ancient path on the hillside east of Lake Maspenock has stone walls, cellar holes and acres of forest. Participants will meet/park at 66 Pine Island Road. Additional parking is at the intersection at 55 Pine Island Road, by the mailboxes. For more information, visit hopkintontrailsclub.com.