La Grosse Île is a Island located in Senneterre; Vallée-de-l'Or, Quebec.

• Latitude: 48° 4' 28'' North   (decimal: 48.0745267)
• Longitude: 75° 56' 19'' West   (decimal: -75.9385270)
• Topography Feature Category: Island
• Geographical Feature: Île / Ile
• Canadian Province/Territory: Quebec
• Location: Senneterre; Vallée-de-l'Or
• Atlas of Canada Locator Map: La Grosse Île
• GPS Coordinate Locator Map: La Grosse Île Lat/Long