Troisième lac Perdu is a Lake located in Mont-Laurier; Antoine-Labelle, Quebec.

• Latitude: 46° 27' 36'' North   (decimal: 46.4599999)
• Longitude: 75° 41' 00'' West   (decimal: -75.6833333)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Mont-Laurier; Antoine-Labelle
• Atlas of Canada Locator Map: Troisième lac Perdu
• GPS Coordinate Locator Map: Troisième lac Perdu Lat/Long