Grosses-Roches is a Unincorporated area located in Grosses-Roches; Matane, Quebec.

• Latitude: 48° 56' 20'' North   (decimal: 48.9389332)
• Longitude: 67° 10' 33'' West   (decimal: -67.1758181)
• Topography Feature Category: Unincorporated area
• Geographical Feature: Bureau de poste
• Canadian Province/Territory: Quebec
• Location: Grosses-Roches; Matane
• Atlas of Canada Locator Map: Grosses-Roches
• GPS Coordinate Locator Map: Grosses-Roches Lat/Long