Saint-Martin-en-Campagne is a former commune in the Seine-Maritime department in the Normandy region in northern France. On 1 January 2016, it was merged into the new commune of Petit-Caux. Geography A coastal farming village situated in the Pays de Caux, at the junction of the D113, D313 and the D925 roads, some east of Dieppe. Huge chalk cliffs rise up over a pebble beach and overlook the English Channel. The Penly Nuclear Power Plant is also sited in this commune. Heraldry Population Places of interest The church of Notre-Dame, dating from the fifteenth century. A stone cross from the sixteenth century. The Penly Nuclear Power Plant on the coast, with two reactors of 1300 MW each. See also Communes of the Seine-Maritime department References Former communes of Seine-Maritime