Marks is a Geographical area located in Thunder Bay, Ontario.

• Latitude: 48° 21' 52'' North   (decimal: 48.3644444)
• Longitude: 89° 49' 30'' West   (decimal: -89.8249999)
• Topography Feature Category: Geographical area
• Geographical Feature: Geographic Township
• Canadian Province/Territory: Ontario
• Location: Thunder Bay
• Atlas of Canada Locator Map: Marks
• GPS Coordinate Locator Map: Marks Lat/Long