Note 90 — Chapter XIII

Coteau du Lac and Isle aux Noix are the keys of Lower Canada; the former completely commands the navigation of the St. Lawrence between the Upper and Lower Provinces, and the latter had been so decidedly regarded as the barrier of Lower Canada from the Champlain frontier, that it excited the particular attention of the French engineers in the last defence of the country, and was afterwards fortified at considerable expense by General Haldimand, daring the war of the American revolution.—Quarterly Review.