Big Marsh Lake is a Lake located in Algoma, Ontario and has an elevation of 417 meters.

• Latitude: 48° 14' 20'' North   (decimal: 48.2388888)
• Longitude: 84° 49' 50'' West   (decimal: -84.8305555)
• Topography Feature Category: Lake
• Geographical Feature: Lake
• Canadian Province/Territory: Ontario
• Elevation: 417 meters
• Location: Algoma
• Atlas of Canada Locator Map: Big Marsh Lake
• GPS Coordinate Locator Map: Big Marsh Lake Lat/Long