Lac Opwatan is a Lake located in Longue-Pointe-de-Mingan; Minganie, Quebec.

• Latitude: 50° 18' 28'' North   (decimal: 50.3077778)
• Longitude: 64° 6' 55'' West   (decimal: -64.1152778)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Longue-Pointe-de-Mingan; Minganie
• GPS Coordinate Locator Map: Lac Opwatan Lat/Long