Lac Barnett is a Lake located in Lac-au-Brochet; La Haute-Côte-Nord, Quebec and has an elevation of 504 meters.

• Latitude: 49° 19' 56'' North   (decimal: 49.3322653)
• Longitude: 69° 43' 45'' West   (decimal: -69.7292527)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 504 meters
• Location: Lac-au-Brochet; La Haute-Côte-Nord
• Atlas of Canada Locator Map: Lac Barnett
• GPS Coordinate Locator Map: Lac Barnett Lat/Long