Lac au Foin is a Lake located in Saint-Roch-de-Mékinac; Mékinac, Quebec.

• Latitude: 46° 47' 19'' North   (decimal: 46.7885999)
• Longitude: 72° 44' 8'' West   (decimal: -72.7355999)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Saint-Roch-de-Mékinac; Mékinac
• GPS Coordinate Locator Map: Lac au Foin Lat/Long