South Portage Lake is a Lake located in Frontenac, Ontario and has an elevation of 358 meters.

• Latitude: 45° 2' 35'' North   (decimal: 45.0430555)
• Longitude: 76° 57' 37'' West   (decimal: -76.9602777)
• Topography Feature Category: Lake
• Geographical Feature: Lake
• Canadian Province/Territory: Ontario
• Elevation: 358 meters
• Location: Frontenac
• Atlas of Canada Locator Map: South Portage Lake
• GPS Coordinate Locator Map: South Portage Lake Lat/Long