Monahan Island is a Island located in Nipissing, Ontario and has an elevation of 348 meters.

• Latitude: 46° 58' 48'' North   (decimal: 46.9800000)
• Longitude: 79° 44' 23'' West   (decimal: -79.7397222)
• Topography Feature Category: Island
• Geographical Feature: Island
• Canadian Province/Territory: Ontario
• Elevation: 348 meters
• Location: Nipissing
• Atlas of Canada Locator Map: Monahan Island
• GPS Coordinate Locator Map: Monahan Island Lat/Long