Lac Black Mountain is a Lake located in Blanc-Sablon; Basse-Côte-Nord, Quebec.

• Latitude: 51° 32' 53'' North   (decimal: 51.5481072)
• Longitude: 57° 8' 37'' West   (decimal: -57.1435039)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Blanc-Sablon; Basse-Côte-Nord
• Atlas of Canada Locator Map: Lac Black Mountain
• GPS Coordinate Locator Map: Lac Black Mountain Lat/Long