Lac Tonus is a Lake located in Lac-Oscar; Antoine-Labelle, Quebec and has an elevation of 425 meters.

• Latitude: 47° 22' 48'' North   (decimal: 47.38)
• Longitude: 75° 14' 7'' West   (decimal: -75.2352778)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 425 meters
• Location: Lac-Oscar; Antoine-Labelle
• Atlas of Canada Locator Map: Lac Tonus
• GPS Coordinate Locator Map: Lac Tonus Lat/Long