Petit lac Isidore is a Lake located in Lac-au-Brochet; La Haute-Côte-Nord, Quebec and has an elevation of 515 meters.

• Latitude: 49° 12' 44'' North   (decimal: 49.2122612)
• Longitude: 69° 43' 42'' West   (decimal: -69.7284073)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 515 meters
• Location: Lac-au-Brochet; La Haute-Côte-Nord
• Atlas of Canada Locator Map: Petit lac Isidore
• GPS Coordinate Locator Map: Petit lac Isidore Lat/Long