Boundary Lake is a Lake located in Muskoka, Ontario and has an elevation of 401 meters.

• Latitude: 45° 29' 52'' North   (decimal: 45.4977777)
• Longitude: 79° 4' 22'' West   (decimal: -79.0727777)
• Topography Feature Category: Lake
• Geographical Feature: Lake
• Canadian Province/Territory: Ontario
• Elevation: 401 meters
• Location: Muskoka
• Atlas of Canada Locator Map: Boundary Lake
• GPS Coordinate Locator Map: Boundary Lake Lat/Long