Lac Gratton is a Lake located in Baie-James; Jamésie, Quebec and has an elevation of 271 meters.

• Latitude: 50° 3' 00'' North   (decimal: 50.0499999)
• Longitude: 79° 19' 25'' West   (decimal: -79.3236111)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 271 meters
• Location: Baie-James; Jamésie
• Atlas of Canada Locator Map: Lac Gratton
• GPS Coordinate Locator Map: Lac Gratton Lat/Long