High Quality Content by WIKIPEDIA articles! Saint-Arnoult is a commune in the Seine-Maritime department in the Haute-Normandie region in northern France. A farming village situated by the banks of the Seine, some 23 miles (37 km) northwest of Rouen at the junction of the D982, D440 and the D281 roads. Seine-Maritime is a French department in the Haute-Normandie region in northern France, which was previously known as Seine-Inférieure. It is situated on the northern coast of France, at the mouth of the Seine, and includes the cities of Rouen and Le Havre. Until 1955 it was named Seine-Inférieure.