Petit lac Truchon is a Lake located in Mont-Valin; Le Fjord-du-Saguenay, Quebec.

• Latitude: 48° 53' 32'' North   (decimal: 48.8922622)
• Longitude: 70° 46' 16'' West   (decimal: -70.7711854)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Mont-Valin; Le Fjord-du-Saguenay
• Atlas of Canada Locator Map: Petit lac Truchon
• GPS Coordinate Locator Map: Petit lac Truchon Lat/Long