Île des Frères is a Island located in Salaberry-de-Valleyfield; Beauharnois-Salaberry, Quebec.

• Latitude: 45° 17' 44'' North   (decimal: 45.2955969)
• Longitude: 74° 2' 21'' West   (decimal: -74.0390536)
• Topography Feature Category: Island
• Geographical Feature: Île / Ile
• Canadian Province/Territory: Quebec
• Location: Salaberry-de-Valleyfield; Beauharnois-Salaberry
• Atlas of Canada Locator Map: Île des Frères
• GPS Coordinate Locator Map: Île des Frères Lat/Long