Lac Grain de Riz is a Lake located in Lac-Oscar; Antoine-Labelle, Quebec.

• Latitude: 46° 58' 26'' North   (decimal: 46.9739461)
• Longitude: 74° 54' 23'' West   (decimal: -74.9062848)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Lac-Oscar; Antoine-Labelle
• Atlas of Canada Locator Map: Lac Grain de Riz
• GPS Coordinate Locator Map: Lac Grain de Riz Lat/Long