Lac Éternité is a Lake located in Chute-des-Passes; Maria-Chapdelaine, Quebec.

• Latitude: 49° 11' 19'' North   (decimal: 49.1886111)
• Longitude: 71° 17' 32'' West   (decimal: -71.2922222)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Chute-des-Passes; Maria-Chapdelaine
• Atlas of Canada Locator Map: Lac Éternité
• GPS Coordinate Locator Map: Lac Éternité Lat/Long