A classic! Hanover start, up 10 to River Rd, cross river in Orford, south on 5 to 244, up to Lake Fairlee and Post Mills, back on 113 to Thetford Hill, right on Academy and down to 132, back to Hanover via 5 and Tuck Drive. Add in a Lake Morey loop if you want to hit 50 miles!
Plan to regroup at major intersections (River Road/10, Route 132/5) and the top of each big climb (244, 113/Academy).