Holder Island is a Island located in Leeds, Ontario and has an elevation of 125 meters.

• Latitude: 44° 37' 57'' North   (decimal: 44.6325000)
• Longitude: 76° 18' 37'' West   (decimal: -76.3102777)
• Topography Feature Category: Island
• Geographical Feature: Island
• Canadian Province/Territory: Ontario
• Elevation: 125 meters
• Location: Leeds
• Atlas of Canada Locator Map: Holder Island
• GPS Coordinate Locator Map: Holder Island Lat/Long