Lac Gaby is a Lake located in Chute-des-Passes; Maria-Chapdelaine, Quebec.

• Latitude: 49° 21' 48'' North   (decimal: 49.3633333)
• Longitude: 71° 29' 27'' West   (decimal: -71.4908333)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Chute-des-Passes; Maria-Chapdelaine
• Atlas of Canada Locator Map: Lac Gaby
• GPS Coordinate Locator Map: Lac Gaby Lat/Long