Argun River
The 85th longest river in the world
The Argun or Ergune is a 1,620-kilometre (1, 010 mi) long river that forms part of the eastern China–Russia border, together with the Amur. Its upper reaches are known as the Hailar River in China. The Argun marks the border (established by the Treaty of Nerchinsk in 1689) between Russia and China for about 944 kilometres (587 mi), until it meets the Amur.
Flows through: People's Republic of China, Russia.
River data from Wikidata (CC0); lengths normalised to a common unit.