East Hardtack Lake is a Lake located in Rainy River, Ontario and has an elevation of 449 meters.

• Latitude: 48° 56' 25'' North   (decimal: 48.9402777)
• Longitude: 91° 37' 5'' West   (decimal: -91.6180555)
• Topography Feature Category: Lake
• Geographical Feature: Lake
• Canadian Province/Territory: Ontario
• Elevation: 449 meters
• Location: Rainy River
• Atlas of Canada Locator Map: East Hardtack Lake
• GPS Coordinate Locator Map: East Hardtack Lake Lat/Long