Rocher Demers is a Island located in Rivière-du-Loup; Rivière-du-Loup, Quebec.

• Latitude: 47° 51' 16'' North   (decimal: 47.8544660)
• Longitude: 69° 38' 58'' West   (decimal: -69.6494946)
• Topography Feature Category: Island
• Geographical Feature: Rocher
• Canadian Province/Territory: Quebec
• Location: Rivière-du-Loup; Rivière-du-Loup
• Atlas of Canada Locator Map: Rocher Demers
• GPS Coordinate Locator Map: Rocher Demers Lat/Long