Troisième lac de Manche-d'Épée is a Lake located in Sainte-Madeleine-de-la-Rivière-Madeleine; La Haute-Gaspésie, Quebec and has an elevation of 430 meters.

• Latitude: 49° 10' 47'' North   (decimal: 49.1797668)
• Longitude: 65° 26' 21'' West   (decimal: -65.4390858)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 430 meters
• Location: Sainte-Madeleine-de-la-Rivière-Madeleine; La Haute-Gaspésie
• Atlas of Canada Locator Map: Troisième lac de Manche-d'Épée
• GPS Coordinate Locator Map: Troisième lac de Manche-d'Épée Lat/Long