Lac-Castagnier is a Unincorporated area located in La Morandière; Abitibi, Quebec and has an elevation of 302 meters.

• Latitude: 48° 42' 48'' North   (decimal: 48.7133333)
• Longitude: 77° 44' 29'' West   (decimal: -77.7413889)
• Topography Feature Category: Unincorporated area
• Geographical Feature: Hameau
• Canadian Province/Territory: Quebec
• Elevation: 302 meters
• Location: La Morandière; Abitibi
• Atlas of Canada Locator Map: Lac-Castagnier
• GPS Coordinate Locator Map: Lac-Castagnier Lat/Long