Lac Umisumiwaw is a Lake located in Baie-James; Jamésie, Quebec and has an elevation of 213 meters.

• Latitude: 54° 7' 25'' North   (decimal: 54.1236111)
• Longitude: 76° 9' 2'' West   (decimal: -76.1505556)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 213 meters
• Location: Baie-James; Jamésie
• Atlas of Canada Locator Map: Lac Umisumiwaw
• GPS Coordinate Locator Map: Lac Umisumiwaw Lat/Long