Petit lac du Castor is a Lake located in Ruisseau-Ferguson; Avignon, Quebec.

• Latitude: 48° 6' 22'' North   (decimal: 48.1061592)
• Longitude: 67° 37' 55'' West   (decimal: -67.6319407)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Ruisseau-Ferguson; Avignon
• Atlas of Canada Locator Map: Petit lac du Castor
• GPS Coordinate Locator Map: Petit lac du Castor Lat/Long