Seigneurie de la Grande-Anse is a Geographical area located in Saint-Roch-des-Aulnaies; L'Islet, Quebec.

• Latitude: 47° 17' North   (decimal: 47.2833333)
• Longitude: 70° 7' West   (decimal: -70.1166666)
• Topography Feature Category: Geographical area
• Geographical Feature: Seigneurie
• Canadian Province/Territory: Quebec
• Location: Saint-Roch-des-Aulnaies; L'Islet
• Atlas of Canada Locator Map: Seigneurie de la Grande-Anse
• GPS Coordinate Locator Map: Seigneurie de la Grande-Anse Lat/Long