La Grande Île is a Island located in Rivière-aux-Outardes; Manicouagan, Quebec.

• Latitude: 49° 37' 7'' North   (decimal: 49.6186599)
• Longitude: 67° 54' 43'' West   (decimal: -67.9119568)
• Topography Feature Category: Island
• Geographical Feature: Île / Ile
• Canadian Province/Territory: Quebec
• Location: Rivière-aux-Outardes; Manicouagan
• Atlas of Canada Locator Map: La Grande Île
• GPS Coordinate Locator Map: La Grande Île Lat/Long