Lac Usawakamiu is a Lake located in Baie-James; Jamésie, Quebec and has an elevation of 230 meters.

• Latitude: 51° 1' 6'' North   (decimal: 51.0183333)
• Longitude: 77° 46' 5'' West   (decimal: -77.7680556)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 230 meters
• Location: Baie-James; Jamésie
• Atlas of Canada Locator Map: Lac Usawakamiu
• GPS Coordinate Locator Map: Lac Usawakamiu Lat/Long