Mary Ann Lake is a Lake located in Algoma, Ontario and has an elevation of 188 meters.

• Latitude: 46° 29' 27'' North   (decimal: 46.4908333)
• Longitude: 84° 29' 37'' West   (decimal: -84.4936111)
• Topography Feature Category: Lake
• Geographical Feature: Lake
• Canadian Province/Territory: Ontario
• Elevation: 188 meters
• Location: Algoma
• Atlas of Canada Locator Map: Mary Ann Lake
• GPS Coordinate Locator Map: Mary Ann Lake Lat/Long