Southby Lake is a Lake located in Mackenzie, Northwest Territories and has an elevation of 424 meters.

• Latitude: 60° 38' 1'' North   (decimal: 60.6335395)
• Longitude: 105° 19' 2'' West   (decimal: -105.3173469)
• Topography Feature Category: Lake
• Geographical Feature: Lake
• Canadian Province/Territory: Northwest Territories
• Elevation: 424 meters
• Location: Mackenzie
• Atlas of Canada Locator Map: Southby Lake
• GPS Coordinate Locator Map: Southby Lake Lat/Long