Lac de la Pessière à Mousses is a Lake located in Petit-Mécatina; Minganie, Quebec.

• Latitude: 51° 40' 58'' North   (decimal: 51.6828483)
• Longitude: 60° 32' 28'' West   (decimal: -60.5411256)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Petit-Mécatina; Minganie
• Atlas of Canada Locator Map: Lac de la Pessière à Mousses
• GPS Coordinate Locator Map: Lac de la Pessière à Mousses Lat/Long