Marmots are large squirrels in the genus Marmota, of which there are 15 species. Some species live in mountainous areas, such as the Alps, northern Apennines, Carpathians, Tatras, and Pyrenees in Europe and northwestern Asia; the Rocky Mountains, Black Hills, Cascades, Pacific Ranges, and Sierra Nevada in North America; and the Deosai Plateau in Pakistan and Ladakh in India. Other species prefer rough grassland and can be found widely across North America and the Eurasian steppes. The similarly sized, but more social, prairie dog is not classified in the genus Marmota but in the related genus Cynomys.