Lac Fourchu is a Lake located in Petit-Saguenay; Le Fjord-du-Saguenay, Quebec.

• Latitude: 48° 9' 38'' North   (decimal: 48.1605808)
• Longitude: 70° 9' 49'' West   (decimal: -70.1636757)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Petit-Saguenay; Le Fjord-du-Saguenay
• Atlas of Canada Locator Map: Lac Fourchu
• GPS Coordinate Locator Map: Lac Fourchu Lat/Long