Grand lac à la Truite is a Lake located in Lac-Ministuk; Le Fjord-du-Saguenay, Quebec.

• Latitude: 48° 17' 28'' North   (decimal: 48.2911111)
• Longitude: 71° 35' 7'' West   (decimal: -71.5852778)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Lac-Ministuk; Le Fjord-du-Saguenay
• Atlas of Canada Locator Map: Grand lac à la Truite
• GPS Coordinate Locator Map: Grand lac à la Truite Lat/Long