Île à Dumas is a Island located in Blanc-Sablon; Basse-Côte-Nord, Quebec.

• Latitude: 51° 24' 34'' North   (decimal: 51.4094968)
• Longitude: 57° 11' 49'' West   (decimal: -57.1968410)
• Topography Feature Category: Island
• Geographical Feature: Îlot / Ilot
• Canadian Province/Territory: Quebec
• Location: Blanc-Sablon; Basse-Côte-Nord
• Atlas of Canada Locator Map: Île à Dumas
• GPS Coordinate Locator Map: Île à Dumas Lat/Long