It stretches all the way from Ungava Bay to Mount D'Iberville, which is on the Newfoundland and Labrador and Quebec border.

The 166 km (103 mi) Koroc River runs through the national park to Ungava Bay.

Kuururjuaq National Park contains a variety of different ecosystems and comprises three natural regions: the Torngat Mountain Foothills, the George River Plateau and the Ungava Coast.

In the Koroc River, there are several species of marine animal, including the Arctic char, brook trout, whitefish and Atlantic salmon.

Within the valley, there are red and Arctic foxes, spruce grouse, willow ptarmigan and black and polar bears.