Lac Sirois is a Lake located in Lac-au-Brochet; La Haute-Côte-Nord, Quebec and has an elevation of 200 meters.

• Latitude: 48° 51' 37'' North   (decimal: 48.8603087)
• Longitude: 69° 14' 2'' West   (decimal: -69.2339410)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 200 meters
• Location: Lac-au-Brochet; La Haute-Côte-Nord
• Atlas of Canada Locator Map: Lac Sirois
• GPS Coordinate Locator Map: Lac Sirois Lat/Long