Baie du Dix-Huit Milles is a Bay located in Rivière-aux-Outardes; Manicouagan, Quebec.

• Latitude: 49° 54' 5'' North   (decimal: 49.9013889)
• Longitude: 68° 59' 42'' West   (decimal: -68.995)
• Topography Feature Category: Bay
• Geographical Feature: Baie
• Canadian Province/Territory: Quebec
• Location: Rivière-aux-Outardes; Manicouagan
• Atlas of Canada Locator Map: Baie du Dix-Huit Milles
• GPS Coordinate Locator Map: Baie du Dix-Huit Milles Lat/Long