Big Marsh Lake is a Lake located in Sudbury, Ontario and has an elevation of 214 meters.

• Latitude: 46° 18' 1'' North   (decimal: 46.3002777)
• Longitude: 80° 38' 9'' West   (decimal: -80.6358333)
• Topography Feature Category: Lake
• Geographical Feature: Lake
• Canadian Province/Territory: Ontario
• Elevation: 214 meters
• Location: Sudbury
• Atlas of Canada Locator Map: Big Marsh Lake
• GPS Coordinate Locator Map: Big Marsh Lake Lat/Long