Mount Castelnau is a Mountain located in Kootenay Land District, British Columbia and has an elevation of 2742 meters.

• Latitude: 50° 31' 41'' North   (decimal: 50.5280555)
• Longitude: 115° 9' 57'' West   (decimal: -115.1658333)
• Topography Feature Category: Mountain
• Geographical Feature: Mount
• Canadian Province/Territory: British Columbia
• Elevation: 2742 meters
• Location: Kootenay Land District
• Atlas of Canada Locator Map: Mount Castelnau
• GPS Coordinate Locator Map: Mount Castelnau Lat/Long