Rivière au Castor Est is a River located in Baie-James; Jamésie, Quebec and has an elevation of 103 meters.

• Latitude: 53° 18' 27'' North   (decimal: 53.3075)
• Longitude: 78° 21' 30'' West   (decimal: -78.3583333)
• Topography Feature Category: River
• Geographical Feature: Rivière
• Canadian Province/Territory: Quebec
• Elevation: 103 meters
• Location: Baie-James; Jamésie
• Atlas of Canada Locator Map: Rivière au Castor Est
• GPS Coordinate Locator Map: Rivière au Castor Est Lat/Long