Le Grand Fossé is a Hydraulic construction located in L'Assomption; L'Assomption, Quebec.

• Latitude: 45° 53' 57'' North   (decimal: 45.8992037)
• Longitude: 73° 27' 14'' West   (decimal: -73.4540249)
• Topography Feature Category: Hydraulic construction
• Geographical Feature: Fossé
• Canadian Province/Territory: Quebec
• Location: L'Assomption; L'Assomption
• Atlas of Canada Locator Map: Le Grand Fossé
• GPS Coordinate Locator Map: Le Grand Fossé Lat/Long