City Detail

Cornwall (Mohawk: Tsi kaná:taien) is a city in Eastern Ontario, Canada, situated where the provinces of Ontario and Quebec and the state of New York converge. It is the seat of the United Counties of Stormont, Dundas, and Glengarry and is Ontario's easternmost city. Cornwall is named after the English Duchy of Cornwall; the city's coat of arms is based on that of the duchy with its colours reversed and the addition of a "royal tressure", a Scottish symbol of royalty. It is the urban centre for the surrounding communities of Long Sault and Ingleside to the west; the Mohawk Territory of Akwesasne to the south; St. Andrews West and Avonmore to the north; and Glen Walter, Martintown, Apple Hill, Williamstown, and Lancaster to the east. The city straddles the St. Lawrence River and is home to the St. Lawrence Seaway Management Corporation, which oversees navigation and shipping activities for the St. Lawrence Seaway.