Hudson Bay (Inuktitut: Kangiqsualuk ilua, French: baie d'Hudson), sometimes (usually historically) called Hudson's Bay, is a large body of saltwater in northeastern Canada, with a surface area of 1,230,000 square kilometres (470,000 sq mi). It drains a very large area, about 3,861,400 square kilometres (1,490,900 sq mi), that includes parts of Ontario, Quebec, Saskatchewan, Alberta, most of Manitoba, southeastern Nunavut, as well as parts of North Dakota, South Dakota, Minnesota, and Montana. The southern arm of Hudson Bay is called James Bay.