Lac Murdoch is a Lake located in Rivière-Koksoak; Kativik, Quebec and has an elevation of 481 meters.

• Latitude: 55° 29' 55'' North   (decimal: 55.4987148)
• Longitude: 66° 40' 7'' West   (decimal: -66.6687293)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 481 meters
• Location: Rivière-Koksoak; Kativik
• Atlas of Canada Locator Map: Lac Murdoch
• GPS Coordinate Locator Map: Lac Murdoch Lat/Long