Big O.K. Lake is a Lake located in Kamloops Division Yale Land District, British Columbia.

• Latitude: 50° 28' 50'' North   (decimal: 50.4805558)
• Longitude: 121° 7' 10'' West   (decimal: -121.1194450)
• Topography Feature Category: Lake
• Geographical Feature: Lake
• Canadian Province/Territory: British Columbia
• Location: Kamloops Division Yale Land District
• Atlas of Canada Locator Map: Big O.K. Lake
• GPS Coordinate Locator Map: Big O.K. Lake Lat/Long