Lac Ahier is a Lake located in Port-Daniel¿Gascons; Le Rocher-Percé, Quebec and has an elevation of 183 meters.

• Latitude: 48° 17' 6'' North   (decimal: 48.2849999)
• Longitude: 64° 57' 5'' West   (decimal: -64.9513889)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 183 meters
• Location: Port-Daniel¿Gascons; Le Rocher-Percé
• Atlas of Canada Locator Map: Lac Ahier
• GPS Coordinate Locator Map: Lac Ahier Lat/Long