Lac Isabelle is a Lake located in Franquelin; Manicouagan, Quebec.

• Latitude: 49° 21' 35'' North   (decimal: 49.3597685)
• Longitude: 67° 56' 6'' West   (decimal: -67.9350163)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Franquelin; Manicouagan
• Atlas of Canada Locator Map: Lac Isabelle
• GPS Coordinate Locator Map: Lac Isabelle Lat/Long