St. Mary Lake is a Lake located in Cariboo Land District, British Columbia and has an elevation of 804 meters.

• Latitude: 54° 12' North   (decimal: 54.2000000)
• Longitude: 123° 38' West   (decimal: -123.6333000)
• Topography Feature Category: Lake
• Geographical Feature: Lake
• Canadian Province/Territory: British Columbia
• Elevation: 804 meters
• Location: Cariboo Land District
• Atlas of Canada Locator Map: St. Mary Lake
• GPS Coordinate Locator Map: St. Mary Lake Lat/Long