Lac Boulder is a Lake located in Rivière-Mouchalagane; Caniapiscau, Quebec and has an elevation of 644 meters.

• Latitude: 52° 53' 24'' North   (decimal: 52.8900769)
• Longitude: 67° 22' 50'' West   (decimal: -67.3805000)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 644 meters
• Location: Rivière-Mouchalagane; Caniapiscau
• Atlas of Canada Locator Map: Lac Boulder
• GPS Coordinate Locator Map: Lac Boulder Lat/Long