Claim: The Canal de Neufossé starts in Neufossé and ends in Aire-sur-la-Lys.
Evidence: The Canal de Neufossé is a French canal connecting the Aa River in Arques to the Canal d'Aire in Aire-sur-la-Lys. Arques Aire-sur-la-Lys Arques is a commune in the Pas-de-Calais department in northern France, bordering Saint-Omer. The town is crossed by the Neufossé Canal, which connects the rivers Aa and Lys.