Onion Lake is a Lake located in Lillooet Land District, British Columbia and has an elevation of 1160 meters.

• Latitude: 51° 27' North   (decimal: 51.4500000)
• Longitude: 122° 3' West   (decimal: -122.0499999)
• Topography Feature Category: Lake
• Geographical Feature: Lake
• Canadian Province/Territory: British Columbia
• Elevation: 1160 meters
• Location: Lillooet Land District
• Atlas of Canada Locator Map: Onion Lake
• GPS Coordinate Locator Map: Onion Lake Lat/Long