Lac du Rocher is a Lake located in Sainte-Mélanie; Joliette, Quebec and has an elevation of 253 meters.

• Latitude: 46° 10' 12'' North   (decimal: 46.1699999)
• Longitude: 73° 33' 12'' West   (decimal: -73.5533333)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 253 meters
• Location: Sainte-Mélanie; Joliette
• Atlas of Canada Locator Map: Lac du Rocher
• GPS Coordinate Locator Map: Lac du Rocher Lat/Long