Blowdown Lake is a Lake located in Nipissing, Ontario and has an elevation of 442 meters.

• Latitude: 45° 47' 33'' North   (decimal: 45.7924999)
• Longitude: 78° 33' 00'' West   (decimal: -78.5499999)
• Topography Feature Category: Lake
• Geographical Feature: Lake
• Canadian Province/Territory: Ontario
• Elevation: 442 meters
• Location: Nipissing
• Atlas of Canada Locator Map: Blowdown Lake
• GPS Coordinate Locator Map: Blowdown Lake Lat/Long