The Seine River
Seine River, a river in France. From its source on the Plateau de Langres near Dijon it flows northwestward for 482 miles (776 km), emptying into the English Channel through a wide estuary. Tributaries include the Aube, Yonne, Loing, Marne, Oise, and Eure rivers.
The Seine is one of the main arteries of France's inland waterway system and is navigable by barge for much of its length. Oceangoing vessels travel upstream as far as Rouen. Canals link the Seine and its tributaries with other major rivers, including the Rhine, Meuse, Rhône, and Loire.
Paris is the largest and most important city on the river; Le Havre, a principal seaport for northern France, lies at its estuary. The Seine basin is one of France's most productive agricultural areas. Historic cities along the river include Saint-Denis and Fontainebleau.