Lac du Castor Noir is a Lake located in Mont-Valin; Le Fjord-du-Saguenay, Quebec and has an elevation of 667 meters.

• Latitude: 51° 51' 17'' North   (decimal: 51.8548013)
• Longitude: 70° 41' 33'' West   (decimal: -70.6925493)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 667 meters
• Location: Mont-Valin; Le Fjord-du-Saguenay
• Atlas of Canada Locator Map: Lac du Castor Noir
• GPS Coordinate Locator Map: Lac du Castor Noir Lat/Long