Marsh Bay is a Bay located in Nipissing, Ontario and has an elevation of 205 meters.

• Latitude: 46° 12' 44'' North   (decimal: 46.2122222)
• Longitude: 79° 56' 2'' West   (decimal: -79.9338888)
• Topography Feature Category: Bay
• Geographical Feature: Bay
• Canadian Province/Territory: Ontario
• Elevation: 205 meters
• Location: Nipissing
• Atlas of Canada Locator Map: Marsh Bay
• GPS Coordinate Locator Map: Marsh Bay Lat/Long