The Torngat Mountains have a substantial geographical extent. About 56% of the range is located in Quebec, 44% is in Labrador, and the remainder, less than 1%, is located on Killiniq Island in Nunavut. At least 2% of the mountain chain is under water, and poorly surveyed. The Torngat Mountains cover , including lowland areas and extend over from Cape Chidley in the north to Hebron Fjord in the south. The Torngat Mountains have the highest peaks of eastern continental Canada.