Le Grand Fossé is a Hydraulic construction located in Louiseville; Maskinongé, Quebec.

• Latitude: 46° 14' 46'' North   (decimal: 46.2461400)
• Longitude: 72° 55' 41'' West   (decimal: -72.9281779)
• Topography Feature Category: Hydraulic construction
• Geographical Feature: Fossé
• Canadian Province/Territory: Quebec
• Location: Louiseville; Maskinongé
• Atlas of Canada Locator Map: Le Grand Fossé
• GPS Coordinate Locator Map: Le Grand Fossé Lat/Long