Île de la Grosse Truite is a Island located in Lac-Walker; Sept-Rivières, Quebec.

• Latitude: 51° 28' 50'' North   (decimal: 51.4806182)
• Longitude: 66° 53' 58'' West   (decimal: -66.8993954)
• Topography Feature Category: Island
• Geographical Feature: Île / Ile
• Canadian Province/Territory: Quebec
• Location: Lac-Walker; Sept-Rivières
• Atlas of Canada Locator Map: Île de la Grosse Truite
• GPS Coordinate Locator Map: Île de la Grosse Truite Lat/Long