Barrage à John is a Hydraulic construction located in Lac-Jacques-Cartier; La Côte-de-Beaupré, Quebec and has an elevation of 870 meters.

• Latitude: 47° 40' 3'' North   (decimal: 47.6675)
• Longitude: 71° 20' 38'' West   (decimal: -71.3438889)
• Topography Feature Category: Hydraulic construction
• Geographical Feature: Barrage
• Canadian Province/Territory: Quebec
• Elevation: 870 meters
• Location: Lac-Jacques-Cartier; La Côte-de-Beaupré
• Atlas of Canada Locator Map: Barrage à John
• GPS Coordinate Locator Map: Barrage à John Lat/Long