Danstable, MA to Northbridge, MA $18 :: BF, lunch, snack 47.11 mi :: 4.04 hr :: 32.4 mph :: 11.5 mph :: 6509 mi Cold, dewy, but sunny morning. At breakfast in Groton, I impress the propietor Carol with my appetite. Everyone else there knows each other. When they learn I’m from Wyoming, they seem…