Lac à John is a Lake located in Baie-Sainte-Catherine; Charlevoix-Est, Quebec and has an elevation of 206 meters.

• Latitude: 48° 1' 47'' North   (decimal: 48.0297436)
• Longitude: 69° 56' 17'' West   (decimal: -69.9381155)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 206 meters
• Location: Baie-Sainte-Catherine; Charlevoix-Est
• Atlas of Canada Locator Map: Lac à John
• GPS Coordinate Locator Map: Lac à John Lat/Long