Onamakawash Lake is a Lake located in Thunder Bay, Ontario and has an elevation of 378 meters.

• Latitude: 50° 18' 20'' North   (decimal: 50.3055555)
• Longitude: 89° 36' 21'' West   (decimal: -89.6058333)
• Topography Feature Category: Lake
• Geographical Feature: Lake
• Canadian Province/Territory: Ontario
• Elevation: 378 meters
• Location: Thunder Bay
• Atlas of Canada Locator Map: Onamakawash Lake
• GPS Coordinate Locator Map: Onamakawash Lake Lat/Long