Mount Underdown is a Mountain located in Similkameen Division Yale Land District, British Columbia and has an elevation of 1735 meters.

• Latitude: 49° 12' 28'' North   (decimal: 49.2077777)
• Longitude: 119° 20' 24'' West   (decimal: -119.3399999)
• Topography Feature Category: Mountain
• Geographical Feature: Mount
• Canadian Province/Territory: British Columbia
• Elevation: 1735 meters
• Location: Similkameen Division Yale Land District
• Atlas of Canada Locator Map: Mount Underdown
• GPS Coordinate Locator Map: Mount Underdown Lat/Long