This Charles River Wheelmen ride crosses eight bridges on the Sudbury River and see a ninth one that George Washington is said to have crossed. Cruise along in the beautiful Sudbury River valley with 4 hills to keep you warm. The arrow is a white thermometer.The ride begins from the Crosby Market parking lot near the train station, 211 Sudbury Road Concord, MA. Take Rt. 2 West. Turn Right on Sudbury Road (4th light from Rte. 128) in Concord, then continue about 3/4 mile. The store is on the right before the tracks. An alternative start location is theConcord Carlisle High School.