Lac Inconnu is a Lake located in Rivière-Rouge; Antoine-Labelle, Quebec and has an elevation of 319 meters.

• Latitude: 46° 27' 20'' North   (decimal: 46.4556020)
• Longitude: 74° 47' 58'' West   (decimal: -74.7993491)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 319 meters
• Location: Rivière-Rouge; Antoine-Labelle
• Atlas of Canada Locator Map: Lac Inconnu
• GPS Coordinate Locator Map: Lac Inconnu Lat/Long