Rt. 2 West, 4 miles beyond Rt. 495, take exit 38B for Rt. 110 East/111 North. Go 2 miles to rotary and follow Rt. 111 North/2A West toward Ayer. Stay on Rt. 111/2A turning right in downtown Ayer, then turn right on Groton St. just after NAPA auto parts store. Parking lot is immediately on the right, before the bike path. Or take the Fitchburg commuter rail line to the Ayer station: schedule is here: https://mbta.com/schedules/CR-Fitchburg/timetable
Modified version of the former West Podunk route on back roads in and around Shirley, MA, voted America's Most Historic Small Town by ePodunk.com (really!). Short ride includes Groton, Sterling, Lancaster, and Bolton. Long ride adds nice loop in Townsend and Lunenberg. Both routes now have lunch stop at Kimball's Farm in Lancaster and avoid busy retail area in Leominster. Limited food and drink opportunities, so BYO.
THIS RIDE IS NO LONGER ARROWED. IT WILL BE RUN AS CUE SHEET AND GPS RIDE.