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

• Latitude: 49° 16' 50'' North   (decimal: 49.2805955)
• Longitude: 70° 52' 30'' West   (decimal: -70.8750681)
• 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 Saint-Martin
• GPS Coordinate Locator Map: Barrage Saint-Martin Lat/Long