Barrage Mandan is a Hydraulic construction located in Mont-Valin; Le Fjord-du-Saguenay, Quebec.

• Latitude: 48° 53' 17'' North   (decimal: 48.8880957)
• Longitude: 70° 47' 52'' West   (decimal: -70.7978525)
• Topography Feature Category: Hydraulic construction
• Geographical Feature: Barrage
• Canadian Province/Territory: Quebec
• Location: Mont-Valin; Le Fjord-du-Saguenay
• Atlas of Canada Locator Map: Barrage Mandan
• GPS Coordinate Locator Map: Barrage Mandan Lat/Long