Duncan Lake is a Lake located in Rainy River, Ontario and has an elevation of 452 meters.

• Latitude: 48° 42' 12'' North   (decimal: 48.7033333)
• Longitude: 91° 12' 22'' West   (decimal: -91.2061111)
• Topography Feature Category: Lake
• Geographical Feature: Lake
• Canadian Province/Territory: Ontario
• Elevation: 452 meters
• Location: Rainy River
• Atlas of Canada Locator Map: Duncan Lake
• GPS Coordinate Locator Map: Duncan Lake Lat/Long