Three Corner Lake is a Lake located in Northumberland, New Brunswick and has an elevation of 378 meters.

• Latitude: 47° 24' 26'' North   (decimal: 47.4073029)
• Longitude: 66° 15' 20'' West   (decimal: -66.2554694)
• Topography Feature Category: Lake
• Geographical Feature: Lake
• Canadian Province/Territory: New Brunswick
• Elevation: 378 meters
• Location: Northumberland
• Atlas of Canada Locator Map: Three Corner Lake
• GPS Coordinate Locator Map: Three Corner Lake Lat/Long