Digue du Lac-Ha! Ha! is a Hydraulic construction located in Ferland-et-Boilleau; Le Fjord-du-Saguenay, Quebec.

• Latitude: 48° 3' 25'' North   (decimal: 48.0569444)
• Longitude: 70° 49' 44'' West   (decimal: -70.8288889)
• Topography Feature Category: Hydraulic construction
• Geographical Feature: Digue
• Canadian Province/Territory: Quebec
• Location: Ferland-et-Boilleau; Le Fjord-du-Saguenay
• Atlas of Canada Locator Map: Digue du Lac-Ha! Ha!
• GPS Coordinate Locator Map: Digue du Lac-Ha! Ha! Lat/Long