Lac Mon Oncle is a Lake located in Franquelin; Manicouagan, Quebec and has an elevation of 175 meters.

• Latitude: 49° 24' 20'' North   (decimal: 49.4056018)
• Longitude: 67° 43' 25'' West   (decimal: -67.7236184)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 175 meters
• Location: Franquelin; Manicouagan
• Atlas of Canada Locator Map: Lac Mon Oncle
• GPS Coordinate Locator Map: Lac Mon Oncle Lat/Long