Lac de la Mâchoire du Diable is a Lake located in Lac-au-Brochet; La Haute-Côte-Nord, Quebec.

• Latitude: 48° 51' 39'' North   (decimal: 48.8608638)
• Longitude: 69° 23' 33'' West   (decimal: -69.3925548)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Lac-au-Brochet; La Haute-Côte-Nord
• GPS Coordinate Locator Map: Lac de la Mâchoire du Diable Lat/Long