Cornish Lake is a Lake located in Thunder Bay, Ontario and has an elevation of 336 meters.

• Latitude: 49° 12' 35'' North   (decimal: 49.2097222)
• Longitude: 86° 34' 2'' West   (decimal: -86.5672222)
• Topography Feature Category: Lake
• Geographical Feature: Lake
• Canadian Province/Territory: Ontario
• Elevation: 336 meters
• Location: Thunder Bay
• Atlas of Canada Locator Map: Cornish Lake
• GPS Coordinate Locator Map: Cornish Lake Lat/Long