Lac Lost is a Lake located in La Tuque; Le Haut-Saint-Maurice, Quebec and has an elevation of 375 meters.

• Latitude: 47° 41' North   (decimal: 47.6833000)
• Longitude: 73° 14' West   (decimal: -73.2333000)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 375 meters
• Location: La Tuque; Le Haut-Saint-Maurice
• Atlas of Canada Locator Map: Lac Lost
• GPS Coordinate Locator Map: Lac Lost Lat/Long