Lac Newiska is a Lake located in Baie-James; Jamésie, Quebec and has an elevation of 270 meters.

• Latitude: 49° 31' 59'' North   (decimal: 49.5331450)
• Longitude: 78° 44' 48'' West   (decimal: -78.7467290)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 270 meters
• Location: Baie-James; Jamésie
• Atlas of Canada Locator Map: Lac Newiska
• GPS Coordinate Locator Map: Lac Newiska Lat/Long