La Roche-Blanche is a Unincorporated area located in Cascades-Malignes; La Vallée-de-la-Gatineau, Quebec.

• Latitude: 46° 47' 4'' North   (decimal: 46.7845038)
• Longitude: 75° 57' 48'' West   (decimal: -75.9632720)
• Topography Feature Category: Unincorporated area
• Geographical Feature: Lieu-dit
• Canadian Province/Territory: Quebec
• Location: Cascades-Malignes; La Vallée-de-la-Gatineau
• Atlas of Canada Locator Map: La Roche-Blanche
• GPS Coordinate Locator Map: La Roche-Blanche Lat/Long