Lac Tremblay is a Lake located in Lac-des-Eaux-Mortes; La Mitis, Quebec.

• Latitude: 48° 11' 6'' North   (decimal: 48.1850452)
• Longitude: 67° 56' 6'' West   (decimal: -67.9350059)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Lac-des-Eaux-Mortes; La Mitis
• Atlas of Canada Locator Map: Lac Tremblay
• GPS Coordinate Locator Map: Lac Tremblay Lat/Long