Lac d'Hydro is a Lake located in Mont-Valin; Le Fjord-du-Saguenay, Quebec.

• Latitude: 48° 52' 55'' North   (decimal: 48.8819444)
• Longitude: 70° 31' 18'' West   (decimal: -70.5216667)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Mont-Valin; Le Fjord-du-Saguenay
• Atlas of Canada Locator Map: Lac d'Hydro
• GPS Coordinate Locator Map: Lac d'Hydro Lat/Long