Étang du Castor is a Lake located in Lac-Ashuapmushuan; Le Domaine-du-Roy, Quebec and has an elevation of 473 meters.

• Latitude: 48° 33' 11'' North   (decimal: 48.5530556)
• Longitude: 72° 53' 56'' West   (decimal: -72.8988889)
• Topography Feature Category: Lake
• Geographical Feature: Étang
• Canadian Province/Territory: Quebec
• Elevation: 473 meters
• Location: Lac-Ashuapmushuan; Le Domaine-du-Roy
• Atlas of Canada Locator Map: Étang du Castor
• GPS Coordinate Locator Map: Étang du Castor Lat/Long