Lac Giasson is a Lake located in Petit-Mécatina; Minganie, Quebec and has an elevation of 174 meters.

• Latitude: 50° 38' 22'' North   (decimal: 50.6395188)
• Longitude: 61° 30' 15'' West   (decimal: -61.5042418)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 174 meters
• Location: Petit-Mécatina; Minganie
• Atlas of Canada Locator Map: Lac Giasson
• GPS Coordinate Locator Map: Lac Giasson Lat/Long