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

• Latitude: 57° 10' 22'' North   (decimal: 57.1726461)
• Longitude: 69° 11' 38'' West   (decimal: -69.1937827)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Rivière-Koksoak; Kativik
• Atlas of Canada Locator Map: Lac Mikumakuch
• GPS Coordinate Locator Map: Lac Mikumakuch Lat/Long