Lac des Trois Îles is a Lake located in Baie-James; Jamésie, Quebec and has an elevation of 355 meters.

• Latitude: 49° 51' 23'' North   (decimal: 49.8563889)
• Longitude: 75° 10' 4'' West   (decimal: -75.1677778)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 355 meters
• Location: Baie-James; Jamésie
• Atlas of Canada Locator Map: Lac des Trois Îles
• GPS Coordinate Locator Map: Lac des Trois Îles Lat/Long