Lac O'Keefe is a Lake located in Rivière-Mouchalagane; Caniapiscau, Quebec and has an elevation of 650 meters.

• Latitude: 52° 35' 38'' North   (decimal: 52.5938888)
• Longitude: 67° 36' 57'' West   (decimal: -67.6158333)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 650 meters
• Location: Rivière-Mouchalagane; Caniapiscau
• Atlas of Canada Locator Map: Lac O'Keefe
• GPS Coordinate Locator Map: Lac O'Keefe Lat/Long