The barren-ground caribou (Rangifer tarandus groenlandicus) is a subspecies of the caribou that is found mainly in the Canadian territories of Nunavut and the Northwest Territories, along with Kitaa, Greenland. It sometimes includes the similar porcupine caribou, in which case the barren-ground caribou is also found in Alaska. The barren-ground caribou is a medium-sized caribou, smaller and lighter coloured than the boreal woodland caribou, with the females weighing around 90 kg (200 lb) and the males around 150 kg (330 lb). However, on some of the smaller islands, the average weight may be less.