Jack Lake is a Lake located in Cassiar Land District, British Columbia.

• Latitude: 57° 19' 45'' North   (decimal: 57.3292000)
• Longitude: 125° 45' 00'' West   (decimal: -125.7499999)
• Topography Feature Category: Lake
• Geographical Feature: Lake
• Canadian Province/Territory: British Columbia
• Location: Cassiar Land District
• Atlas of Canada Locator Map: Jack Lake
• GPS Coordinate Locator Map: Jack Lake Lat/Long