Lac à Pierre is a Lake located in Rivière-Mistassini; Maria-Chapdelaine, Quebec and has an elevation of 257 meters.

• Latitude: 49° 8' North   (decimal: 49.1332999)
• Longitude: 72° 40' West   (decimal: -72.6667000)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 257 meters
• Location: Rivière-Mistassini; Maria-Chapdelaine
• Atlas of Canada Locator Map: Lac à Pierre
• GPS Coordinate Locator Map: Lac à Pierre Lat/Long