Lac Ahier is a Lake located in Mont-Albert; La Haute-Gaspésie, Quebec and has an elevation of 709 meters.

• Latitude: 48° 55' 19'' North   (decimal: 48.9219908)
• Longitude: 66° 16' 16'' West   (decimal: -66.2710661)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 709 meters
• Location: Mont-Albert; La Haute-Gaspésie
• Atlas of Canada Locator Map: Lac Ahier
• GPS Coordinate Locator Map: Lac Ahier Lat/Long