The Angara (Russian: Ангара́, [ənɡɐˈra]; Buryat: Ангар, Angar, lit. "Cleft") is a major river in Siberia, which traces a course through Russia's Irkutsk Oblast and Krasnoyarsk Krai. It drains out of Lake Baikal and is the headwater tributary of the Yenisey. It is 1,849 kilometres (1,149 mi) long, and has a drainage basin of 1,039,000 square kilometres (401,000 sq mi). It was formerly known as the Lower or Nizhnyaya Angara (distinguishing it from the Upper Angara). Below its junction with the Ilim, it was formerly known as the Upper Tunguska (Russian: Верхняя Тунгуска, Verhnyaya Tunguska, distinguishing it from the Lower Tunguska) and, with the names reversed, as the Lower Tunguska.
