Lac du Bois Sec is a Lake located in Mont-Valin; Le Fjord-du-Saguenay, Quebec and has an elevation of 671 meters.

• Latitude: 48° 55' 5'' North   (decimal: 48.9180556)
• Longitude: 70° 51' 58'' West   (decimal: -70.8661111)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 671 meters
• Location: Mont-Valin; Le Fjord-du-Saguenay
• Atlas of Canada Locator Map: Lac du Bois Sec
• GPS Coordinate Locator Map: Lac du Bois Sec Lat/Long