Banc Dumas is a Shoal located in Blanc-Sablon; Basse-Côte-Nord, Quebec.

• Latitude: 51° 23' 10'' North   (decimal: 51.3861111)
• Longitude: 57° 13' 13'' West   (decimal: -57.2202778)
• Topography Feature Category: Shoal
• Geographical Feature: Banc de sable
• Canadian Province/Territory: Quebec
• Location: Blanc-Sablon; Basse-Côte-Nord
• Atlas of Canada Locator Map: Banc Dumas
• GPS Coordinate Locator Map: Banc Dumas Lat/Long