Lac Arachis is a Lake located in Baie-Atibenne; Matawinie, Quebec and has an elevation of 525 meters.

• Latitude: 47° 15' 43'' North   (decimal: 47.2619444)
• Longitude: 74° 25' 50'' West   (decimal: -74.4305556)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 525 meters
• Location: Baie-Atibenne; Matawinie
• Atlas of Canada Locator Map: Lac Arachis
• GPS Coordinate Locator Map: Lac Arachis Lat/Long