In which American state in the New Engand region does Quebec Route 243 become Vermont Route 243?
Quebec Route 243:  Its northern terminus is in Saint-Félix-de-Kingsey at the junction of Route 255 and its southern terminus is in the township of Potton where it crosses the Canada–US border at the North Troy-Highwater Border Crossing into Vermont and becomes Vermont Route 243.
i don't know