Osha
The 800th longest river in the world
The Osha is a river in Omsk Oblast, Russia, a left tributary of the Irtysh. It is 530 kilometres (330 mi) long, and has a drainage basin of 21,300 square kilometres (8, 200 sq mi). The river flows across lake Tenis.
Flows through: Russia.
River data from Wikidata (CC0); lengths normalised to a common unit.