to Saint-Valery-sur-Somme, where the maritime canal, once called the canal du Duc d'Angoulême enters the English Channel. The St Quentin Canal, famous for the 1918 battle, links the Somme to northern France and Belgium and southward to the Oise. The Canal du Nord also links the Somme to the Oise, at Noyon, thence to Paris. References Citations Sources Delattre, Ch., Mériaux, E. and Waterlot, M. Guides Géologiques Régionaux: Région du Nord, Flandre Artois Boulonnais Picardie (1973) External links Pictures from the Somme Somme Rivers of Aisne Rivers of Somme (department) Rivers of Hauts-de-France