Lac Ernest is a Lake located in Lac-Ministuk; Le Fjord-du-Saguenay, Quebec and has an elevation of 364 meters.

• Latitude: 48° 15' 41'' North   (decimal: 48.2613889)
• Longitude: 71° 25' 21'' West   (decimal: -71.4225)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 364 meters
• Location: Lac-Ministuk; Le Fjord-du-Saguenay
• Atlas of Canada Locator Map: Lac Ernest
• GPS Coordinate Locator Map: Lac Ernest Lat/Long