Cours d'eau Blais is a River located in Berthier-sur-Mer; Montmagny, Quebec and has an elevation of 19 meters.

• Latitude: 46° 56' 46'' North   (decimal: 46.9461311)
• Longitude: 70° 41' 39'' West   (decimal: -70.6942503)
• Topography Feature Category: River
• Geographical Feature: Cours d'eau agricole
• Canadian Province/Territory: Quebec
• Elevation: 19 meters
• Location: Berthier-sur-Mer; Montmagny
• Atlas of Canada Locator Map: Cours d'eau Blais
• GPS Coordinate Locator Map: Cours d'eau Blais Lat/Long