Jeffs Lake is a Lake located in Frontenac, Ontario and has an elevation of 180 meters.

• Latitude: 44° 37' 7'' North   (decimal: 44.6186111)
• Longitude: 76° 35' 57'' West   (decimal: -76.5991666)
• Topography Feature Category: Lake
• Geographical Feature: Lake
• Canadian Province/Territory: Ontario
• Elevation: 180 meters
• Location: Frontenac
• Atlas of Canada Locator Map: Jeffs Lake
• GPS Coordinate Locator Map: Jeffs Lake Lat/Long