The most populous region is the Saint Lawrence River valley in the south, where the capital, Quebec City, and the largest city, Montreal, are situated. North of Montreal are the Laurentians, a range of ancient mountains, and to the east are the Appalachian Mountains which extends into the Eastern Townships and Gaspésie regions. The Gaspé Peninsula juts into the Gulf of Saint Lawrence to the East. The Saint Lawrence River Valley is a fertile agricultural region, producing dairy products, fruit, vegetables, maple sugar (Quebec is the world's largest producer), and livestock.