Hardtack Lake is a Lake located in Nipissing, Ontario and has an elevation of 432 meters.

• Latitude: 45° 33' 21'' North   (decimal: 45.5558333)
• Longitude: 78° 13' 6'' West   (decimal: -78.2183333)
• Topography Feature Category: Lake
• Geographical Feature: Lake
• Canadian Province/Territory: Ontario
• Elevation: 432 meters
• Location: Nipissing
• Atlas of Canada Locator Map: Hardtack Lake
• GPS Coordinate Locator Map: Hardtack Lake Lat/Long