Lac Castor is a Lake located in Lac-Bouchette; Le Domaine-du-Roy, Quebec and has an elevation of 420 meters.

• Latitude: 48° 16' 23'' North   (decimal: 48.2731020)
• Longitude: 72° 7' 23'' West   (decimal: -72.1231777)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 420 meters
• Location: Lac-Bouchette; Le Domaine-du-Roy
• Atlas of Canada Locator Map: Lac Castor
• GPS Coordinate Locator Map: Lac Castor Lat/Long