VALLEYFIELD  ,

town and port of entry, Beauharnois county, Quebec, Canada, 25 M . S.W. of Montreal, at the foot of Lake St Francis—an expansion of the river St Lawrence—and at the head of the Beauharnois canal . Pop . (1891) 5515; (1901) 11,055 . It is a station on the Canada Atlantic and New York Central railways, and a port of call for all steamers plying between Montreal and Lake Ontario ports . It is the see of a Roman Catholic bishop, and contains a college and a convent . It has extensive cotton, flour, canning and paper mills .