Roche Blanche is a Shoal located in Cascades-Malignes; La Vallée-de-la-Gatineau, Quebec and has an elevation of 208 meters.

• Latitude: 46° 47' 4'' North   (decimal: 46.7845038)
• Longitude: 75° 57' 48'' West   (decimal: -75.9632720)
• Topography Feature Category: Shoal
• Geographical Feature: Haut-fond
• Canadian Province/Territory: Quebec
• Elevation: 208 meters
• Location: Cascades-Malignes; La Vallée-de-la-Gatineau
• GPS Coordinate Locator Map: Roche Blanche Lat/Long