Lac Marthe is a Lake located in Lac-Jérôme; Minganie, Quebec and has an elevation of 578 meters.

• Latitude: 51° 25' 34'' North   (decimal: 51.4261700)
• Longitude: 63° 16' 22'' West   (decimal: -63.2728617)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 578 meters
• Location: Lac-Jérôme; Minganie
• Atlas of Canada Locator Map: Lac Marthe
• GPS Coordinate Locator Map: Lac Marthe Lat/Long