The extreme eastern edge of the Arctic Cordillera is found on the Canadian mainland in the northernmost area in the provinces of Quebec and Labrador. This area of the Arctic Cordillera extends out on a peninsula that helps to define Ungava Bay in Quebec to the east and forms the northernmost edge of Labrador.

The skyline is bordered from below by the jagged peaks and glacier carved fjords which rise up from indigo colored waters and dotted by icebergs. All around the area, polar bears and caribou roam upon some of the oldest rocks on Earth. These mountains are called the Torngat Mountains; the Inuit live in these treasured mountains and they possess many a story from centuries of travel in this land.

The Torngat Mountains are a mountain range at the northernmost tip of the Labrador Peninsula near where extreme northeastern Quebec plunges into Ungava Bay. This northern protrusion of land upon which is the Torngat Mountains separates the Atlantic Ocean from the Ungava Bay. The peninsula is divided between Quebec to the west and Newfoundland and Labrador to the east. However, at the tip of the peninsula is Killiniq Island which is in Nunavut Territory.

The Torngat Mountian, which continues north under the combined waters of Ungava Bay and the Labrador Sea connect to the Arctic Cordillera further north. These mountains upon the peninsula cover over 11,600 square miles; the highest point being at Mount Caubvick at 5420 feet and at least eight more mountain peaks above 5000 feet. There are no trees in the Torngat Mountains because these mountains lie within the arctic tundra ecoregion.

Two national parks exist on this peninsula, Torngat Mountain Nation Park Reserve and Kuururjuaq National Park.

According to the wise men of this world, the Precambrian gneisses that comprise the Torngat Mountains are among the oldest on Earth and have been dated at roughly 3.6 to 3.9 billion years old. Geologists recognize the gneisses of the Torngats as a part of the Canadian Shield or Laurentian Upland, which, composing the very old North American Craton, split from the continent of Rodinia roughly 750 million years ago to form the geologic core of North America.

The ranges of the Torngat Mountains are separated by deep fjords and finger lakes surrounded by sheer rock walls. The fjords were produced by glaciation of which the Laurentide Ice Sheet covered most of the mountains at least once.

Currently, there are over 100 active small mountain glaciers in the Torngat Mountains with a total of about 195 ice masses in the region.