Lac Rosoy is a Lake located in Lac-Blanc; Portneuf, Quebec and has an elevation of 563 meters.

• Latitude: 47° 18' 27'' North   (decimal: 47.3075)
• Longitude: 71° 47' 24'' West   (decimal: -71.79)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 563 meters
• Location: Lac-Blanc; Portneuf
• Atlas of Canada Locator Map: Lac Rosoy
• GPS Coordinate Locator Map: Lac Rosoy Lat/Long