Lac Ferguson is a Lake located in Rivière-Koksoak; Kativik, Quebec.

• Latitude: 58° 14' 18'' North   (decimal: 58.2382235)
• Longitude: 69° 7' 24'' West   (decimal: -69.1234317)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Rivière-Koksoak; Kativik
• Atlas of Canada Locator Map: Lac Ferguson
• GPS Coordinate Locator Map: Lac Ferguson Lat/Long