Lac à Charest is a Lake located in Saint-Léon-le-Grand; La Matapédia, Quebec.

• Latitude: 48° 22' 41'' North   (decimal: 48.3781008)
• Longitude: 67° 33' 31'' West   (decimal: -67.5586068)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Saint-Léon-le-Grand; La Matapédia
• Atlas of Canada Locator Map: Lac à Charest
• GPS Coordinate Locator Map: Lac à Charest Lat/Long