Lac Isabelle is a Lake located in Rivière-Mistassini; Maria-Chapdelaine, Quebec and has an elevation of 477 meters.

• Latitude: 49° 59' 29'' North   (decimal: 49.9913889)
• Longitude: 72° 34' 53'' West   (decimal: -72.5813889)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 477 meters
• Location: Rivière-Mistassini; Maria-Chapdelaine
• Atlas of Canada Locator Map: Lac Isabelle
• GPS Coordinate Locator Map: Lac Isabelle Lat/Long