Roche Blanche is a Shoal located in Saint-André; Kamouraska, Quebec and has an elevation of 27 meters.

• Latitude: 47° 49' 28'' North   (decimal: 47.8244655)
• Longitude: 69° 45' 21'' West   (decimal: -69.7558871)
• Topography Feature Category: Shoal
• Geographical Feature: Roche
• Canadian Province/Territory: Quebec
• Elevation: 27 meters
• Location: Saint-André; Kamouraska
• Atlas of Canada Locator Map: Roche Blanche
• GPS Coordinate Locator Map: Roche Blanche Lat/Long