Le Grand-Boisé is a Unincorporated area located in La Prairie; Roussillon, Quebec.

• Latitude: 45° 24' 0'' North   (decimal: 45.4000399)
• Longitude: 73° 28' 26'' West   (decimal: -73.4737506)
• Topography Feature Category: Unincorporated area
• Geographical Feature: Secteur résidentiel
• Canadian Province/Territory: Quebec
• Location: La Prairie; Roussillon
• Atlas of Canada Locator Map: Le Grand-Boisé
• GPS Coordinate Locator Map: Le Grand-Boisé Lat/Long