SOREL, a town and port of entry of Quebec, Canada, capital of Richelieu county, 42 m. N.E. of Montreal, at the confluence of the Richelieu and St Lawrence rivers. Pop. (1901), 7057. It is on the Grand Trunk and the Quebec Southern railways, and is a port of call for the Montreal and Quebec river steamers. It contains iron and leather manufactories, and shipbuilding is carried on. It occupies the site of a fort built in 1665 by A. de Tracy to guard the route by way of the Richelieu to Lake Champlain and the Hudson, and is named after the first commandant of the garrison.