Les Roches Perdues is a Island located in L'Isle-aux-Coudres; Charlevoix, Quebec and has an elevation of 19 meters.

• Latitude: 47° 25' 41'' North   (decimal: 47.4280779)
• Longitude: 70° 18' 48'' West   (decimal: -70.3134053)
• Topography Feature Category: Island
• Geographical Feature: Roches
• Canadian Province/Territory: Quebec
• Elevation: 19 meters
• Location: L'Isle-aux-Coudres; Charlevoix
• Atlas of Canada Locator Map: Les Roches Perdues
• GPS Coordinate Locator Map: Les Roches Perdues Lat/Long