Troisième Lac is a Lake located in Senneterre; Vallée-de-l'Or, Quebec.

• Latitude: 47° 48' 38'' North   (decimal: 47.8105556)
• Longitude: 76° 9' 56'' West   (decimal: -76.1655556)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Senneterre; Vallée-de-l'Or
• Atlas of Canada Locator Map: Troisième Lac
• GPS Coordinate Locator Map: Troisième Lac Lat/Long