Lac Gareau is a Lake located in Saint-Mathieu-du-Parc; Maskinongé, Quebec and has an elevation of 196 meters.

• Latitude: 46° 32' 56'' North   (decimal: 46.5488889)
• Longitude: 72° 56' 37'' West   (decimal: -72.9436111)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 196 meters
• Location: Saint-Mathieu-du-Parc; Maskinongé
• Atlas of Canada Locator Map: Lac Gareau
• GPS Coordinate Locator Map: Lac Gareau Lat/Long