Lac B is a Lake located in Lac-au-Brochet; La Haute-Côte-Nord, Quebec.

• Latitude: 49° 1' 51'' North   (decimal: 49.0308657)
• Longitude: 69° 41' 6'' West   (decimal: -69.6850615)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Lac-au-Brochet; La Haute-Côte-Nord
• GPS Coordinate Locator Map: Lac B Lat/Long