Big Twin Lake is a Lake located in Thunder Bay, Ontario and has an elevation of 361 meters.

• Latitude: 49° 32' 19'' North   (decimal: 49.5386111)
• Longitude: 85° 51' 55'' West   (decimal: -85.8652777)
• Topography Feature Category: Lake
• Geographical Feature: Lake
• Canadian Province/Territory: Ontario
• Elevation: 361 meters
• Location: Thunder Bay
• Atlas of Canada Locator Map: Big Twin Lake
• GPS Coordinate Locator Map: Big Twin Lake Lat/Long