Byrnes Lake is a Lake located in Cassiar Land District, British Columbia and has an elevation of 1007 meters.

• Latitude: 55° 38' North   (decimal: 55.6332999)
• Longitude: 125° 33' West   (decimal: -125.5499999)
• Topography Feature Category: Lake
• Geographical Feature: Lake
• Canadian Province/Territory: British Columbia
• Elevation: 1007 meters
• Location: Cassiar Land District
• Atlas of Canada Locator Map: Byrnes Lake
• GPS Coordinate Locator Map: Byrnes Lake Lat/Long