Lac au Foin Plat is a Lake located in Saint-Donat; Matawinie, Quebec.

• Latitude: 46° 20' 3'' North   (decimal: 46.3342076)
• Longitude: 74° 5' 32'' West   (decimal: -74.0921010)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Saint-Donat; Matawinie
• GPS Coordinate Locator Map: Lac au Foin Plat Lat/Long