| Sainte-Marie Island | |
| Map: | Canada Quebec |
| Location: | Carignan, La Vallée-du-Richelieu Regional County Municipality, Montérégie, Québec, Canada |
| Length Km: | 0.8 |
| Width Km: | 0.15 |
| Country: | Canada |
| Additional Info: | Accessible by a single road bridge. |
L'île Sainte-Marie (English: Sainte-Marie Island) is a river island of the Richelieu River. It is located in the territory of the municipality of Carignan, in the La Vallée-du-Richelieu Regional County Municipality, in the administrative region from Montérégie, in the south of province of Quebec, to Canada.
Île Sainte-Marie is located downstream from Sainte-Thérèse Island, from which it is separated by a narrow channel.
Very elongated in shape, Île Sainte-Marie measures in length by of maximum width. It is connected to the left bank of the Richelieu River by a road which passes over the pier forming the right bank of the Chambly Canal.
Île Sainte-Marie faces east from the confluence of La Grande Décharge (stream coming from the east); at this location, the distance between the island and the east bank of the Richelieu River is . Île Sainte-Marie also faces the Chambly Canal National Historic Site of Canada, which is located on the west side of the canal.[1]
Quebec historians generally locate the old fort Sainte Thérèse, which has disappeared today, opposite Île Sainte-Marie.
The name of island comes from that of a former owner, Jean Sainte-Marie.[2]
The toponym "Île Sainte-Marie" was formalized on December 5, 1968 at the Place Names Bank of the Commission de toponymie du Québec.[2]
Formerly an agricultural territory, Île Sainte-Marie is now occupied by around thirty residences. The "Rue de l'Île-Sainte-Marie" is the main road on the island.