Lac Éthier is a Lake located in Baie-Comeau; Manicouagan, Quebec and has an elevation of 135 meters.

• Latitude: 49° 18' 27'' North   (decimal: 49.3075469)
• Longitude: 68° 8' 54'' West   (decimal: -68.1483583)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 135 meters
• Location: Baie-Comeau; Manicouagan
• Atlas of Canada Locator Map: Lac Éthier
• GPS Coordinate Locator Map: Lac Éthier Lat/Long