Marston Lake is a Lake located in Rainy River, Ontario and has an elevation of 376 meters.

• Latitude: 48° 57' 38'' North   (decimal: 48.9605555)
• Longitude: 92° 43' 17'' West   (decimal: -92.7213888)
• Topography Feature Category: Lake
• Geographical Feature: Lake
• Canadian Province/Territory: Ontario
• Elevation: 376 meters
• Location: Rainy River
• Atlas of Canada Locator Map: Marston Lake
• GPS Coordinate Locator Map: Marston Lake Lat/Long