Petit lac Castor is a Lake located in Lac-Walker; Sept-Rivières, Quebec and has an elevation of 130 meters.

• Latitude: 50° 8' 23'' North   (decimal: 50.1397662)
• Longitude: 66° 53' 28'' West   (decimal: -66.8910247)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 130 meters
• Location: Lac-Walker; Sept-Rivières
• Atlas of Canada Locator Map: Petit lac Castor
• GPS Coordinate Locator Map: Petit lac Castor Lat/Long