Third Depot Lake is a Lake located in Frontenac, Ontario and has an elevation of 159 meters.

• Latitude: 44° 33' 58'' North   (decimal: 44.5661111)
• Longitude: 76° 47' 6'' West   (decimal: -76.7850000)
• Topography Feature Category: Lake
• Geographical Feature: Lake
• Canadian Province/Territory: Ontario
• Elevation: 159 meters
• Location: Frontenac
• Atlas of Canada Locator Map: Third Depot Lake
• GPS Coordinate Locator Map: Third Depot Lake Lat/Long