Koster Lake is a Lake located in Lillooet Land District, British Columbia and has an elevation of 1118 meters.

• Latitude: 51° 26' North   (decimal: 51.4333000)
• Longitude: 122° 25' West   (decimal: -122.4167000)
• Topography Feature Category: Lake
• Geographical Feature: Lake
• Canadian Province/Territory: British Columbia
• Elevation: 1118 meters
• Location: Lillooet Land District
• Atlas of Canada Locator Map: Koster Lake
• GPS Coordinate Locator Map: Koster Lake Lat/Long