Mont Pierre-Deffontaines is a Mountain located in Château-Richer; La Côte-de-Beaupré, Quebec.

• Latitude: 47° 10' 58'' North   (decimal: 47.1827778)
• Longitude: 71° 12' 44'' West   (decimal: -71.2122222)
• Topography Feature Category: Mountain
• Geographical Feature: Mont
• Canadian Province/Territory: Quebec
• Location: Château-Richer; La Côte-de-Beaupré
• Atlas of Canada Locator Map: Mont Pierre-Deffontaines
• GPS Coordinate Locator Map: Mont Pierre-Deffontaines Lat/Long