Dufferin Terrace 46°48'45.0"N 71°12'16.0"W, Quebec City, Quebec G1R 6C7, Canada

Lieu historique national des Forts-et-Châteaux-Saint-Louis

The Château Saint-Louis was once a building in the upper town of Quebec, located at the current site of the famous Dufferin terrace, very close to the Château Frontenac, on the top of the cliff overlooking the lower town of Quebec .