Onpaco Lake is a Lake located in Thunder Bay, Ontario and has an elevation of 273 meters.

• Latitude: 48° 39' 55'' North   (decimal: 48.6652777)
• Longitude: 86° 11' 14'' West   (decimal: -86.1872222)
• Topography Feature Category: Lake
• Geographical Feature: Lake
• Canadian Province/Territory: Ontario
• Elevation: 273 meters
• Location: Thunder Bay
• Atlas of Canada Locator Map: Onpaco Lake
• GPS Coordinate Locator Map: Onpaco Lake Lat/Long