Pleine-Sève is a commune in the Seine-Maritime department in the Normandy region in northern France. Geography A small farming village situated in the Durdent valley in the Pays de Caux near the junction of the D70 and the D20 roads, some southwest of Dieppe. Population Places of interest The church of St. Jean-Baptiste, dating from the sixteenth century. See also Communes of the Seine-Maritime department References Communes of Seine-Maritime