Maps showing La Grosse Roche, Henryville; Le Haut-Richelieu, Quebec
La Grosse Roche is a Island located in Henryville; Le Haut-Richelieu, Quebec.
- Latitude: 45° 6' 28'' North (decimal: 45.1077778)
- Longitude: 73° 16' 46'' West (decimal: -73.2794444)
- Topography Feature Category: Island
- Geographical Feature: Rocher
- Canadian Province/Territory: Quebec
- Location: Henryville; Le Haut-Richelieu
- Atlas of Canada Locator Map: La Grosse Roche
- GPS Coordinate Locator Map: La Grosse Roche Lat/Long