Lac Perdu is a Lake located in Longue-Rive; La Haute-Côte-Nord, Quebec.

• Latitude: 48° 34' 13'' North   (decimal: 48.5703053)
• Longitude: 69° 24' 46'' West   (decimal: -69.4128331)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Longue-Rive; La Haute-Côte-Nord
• Atlas of Canada Locator Map: Lac Perdu
• GPS Coordinate Locator Map: Lac Perdu Lat/Long