Lac Mad is a Lake located in Lac-au-Brochet; La Haute-Côte-Nord, Quebec and has an elevation of 422 meters.

• Latitude: 49° 25' 50'' North   (decimal: 49.4305556)
• Longitude: 69° 42' 45'' West   (decimal: -69.7125)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 422 meters
• Location: Lac-au-Brochet; La Haute-Côte-Nord
• Atlas of Canada Locator Map: Lac Mad
• GPS Coordinate Locator Map: Lac Mad Lat/Long