Lac du Castor is a Lake located in Rapides-des-Joachims; Pontiac, Quebec and has an elevation of 295 meters.

• Latitude: 46° 15' 10'' North   (decimal: 46.2528375)
• Longitude: 77° 45' 2'' West   (decimal: -77.7505864)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 295 meters
• Location: Rapides-des-Joachims; Pontiac
• Atlas of Canada Locator Map: Lac du Castor
• GPS Coordinate Locator Map: Lac du Castor Lat/Long