Lac Steph is a Lake located in Baie-de-la-Bouteille; Matawinie, Quebec.

• Latitude: 47° 13' 21'' North   (decimal: 47.2225543)
• Longitude: 74° 13' 18'' West   (decimal: -74.2215339)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Baie-de-la-Bouteille; Matawinie
• GPS Coordinate Locator Map: Lac Steph Lat/Long