Barrage Onatchiway is a Hydraulic construction located in Mont-Valin; Le Fjord-du-Saguenay, Quebec and has an elevation of 296 meters.

• Latitude: 48° 53' 34'' North   (decimal: 48.8927778)
• Longitude: 71° 2' 12'' West   (decimal: -71.0366667)
• Topography Feature Category: Hydraulic construction
• Geographical Feature: Barrage
• Canadian Province/Territory: Quebec
• Elevation: 296 meters
• Location: Mont-Valin; Le Fjord-du-Saguenay
• Atlas of Canada Locator Map: Barrage Onatchiway
• GPS Coordinate Locator Map: Barrage Onatchiway Lat/Long