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The title of this article is ambiguous. See also: Department of Seine and the two Seine Rivers.
The Seine ([sɛn];
in French; Latin/Celtic Sequana) is a river in northern France. It rises in the Bourgogne-Franche-Comté region, flows from east to west, and empties into the English Channel at Le Havre. At around 775 kilometres in length, it is one of the longest rivers in France, along with the Loire (1004 kilometres) and the merging Doubs, Saône and Rhône (1025 kilometres in total). The Seine's catchment area covers about 78,650 km².
Important cities on the Seine are Paris, Troyes and Rouen. The most important inland ports of France are located in Paris and Rouen. The Seine is connected by canals with the Scheldt, Meuse, Rhine, Saône and Loire. In the lower reaches of the river in the Normandy area, exceptionally large valley loops have formed for a river of this water flow. The navigable length (to Nogent-sur-Seine) is 560 km. Seagoing vessels can navigate the river as far as Rouen (120 km inland).
The banks of the Seine in Paris are on the UNESCO World Heritage List.

