Koster Lake is a Lake located in Thunder Bay, Ontario and has an elevation of 476 meters.

• Latitude: 49° 25' 19'' North   (decimal: 49.4219444)
• Longitude: 89° 47' 11'' West   (decimal: -89.7863888)
• Topography Feature Category: Lake
• Geographical Feature: Lake
• Canadian Province/Territory: Ontario
• Elevation: 476 meters
• Location: Thunder Bay
• Atlas of Canada Locator Map: Koster Lake
• GPS Coordinate Locator Map: Koster Lake Lat/Long