Lac Aachinuskumikaach is a Lake located in Baie-James; Jamésie, Quebec and has an elevation of 349 meters.

• Latitude: 53° 50' 27'' North   (decimal: 53.8408333)
• Longitude: 73° 27' 56'' West   (decimal: -73.4655556)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 349 meters
• Location: Baie-James; Jamésie
• Atlas of Canada Locator Map: Lac Aachinuskumikaach
• GPS Coordinate Locator Map: Lac Aachinuskumikaach Lat/Long