Lac des Castors is a Lake located in Mont-Alexandre; Le Rocher-Percé, Quebec and has an elevation of 398 meters.

• Latitude: 48° 35' 42'' North   (decimal: 48.5949999)
• Longitude: 65° 17' 29'' West   (decimal: -65.2913889)
• Topography Feature Category: Lake
• Geographical Feature: Étang
• Canadian Province/Territory: Quebec
• Elevation: 398 meters
• Location: Mont-Alexandre; Le Rocher-Percé
• Atlas of Canada Locator Map: Lac des Castors
• GPS Coordinate Locator Map: Lac des Castors Lat/Long