Marsh Lake is a Lake located in Rainy River, Ontario and has an elevation of 340 meters.

• Latitude: 48° 51' 37'' North   (decimal: 48.8602777)
• Longitude: 94° 20' 58'' West   (decimal: -94.3494444)
• Topography Feature Category: Lake
• Geographical Feature: Lake
• Canadian Province/Territory: Ontario
• Elevation: 340 meters
• Location: Rainy River
• Atlas of Canada Locator Map: Marsh Lake
• GPS Coordinate Locator Map: Marsh Lake Lat/Long