The Abitibi River is a river in northeastern Ontario, Canada, which flows northwest from Lake Abitibi to join the Moose River which empties into James Bay. This river is 540 kilometres (340 mi) long, and descends 265 metres (869 ft). It is the ninth longest river in Ontario, Behind the Ottawa River (1,271km), St. Lawrence River (1.197km), Severn River (982km), Albany River (982km), Winnipeg River (813km), Attawapiskat River (748km), English River (615km) and Moose River(547km).

Lake Abitibi is a shallow lake in northeastern Ontario and western Quebec, Canada. The lake, which lies within the vast Clay Belt, is separated in two distinct portions by a short narrows, making it actually two lakes. Its total area is 931 square kilometres (359 sq mi), and net area 903 square kilometres (349 sq mi). The lake is shallow and studded with islands. Its shores and vicinity are covered with small timber.