Chuna River

Chuna (Russian: Чуна, called Uda (Уда) above the settlement Chunsky) is a river in Irkutsk Oblast and Krasnoyarsk Krai of Russia. It is 1,203 kilometres (748 mi) long, with a drainage basin of 56,800 km².

The river has its sources in the southwestern parts of Irkutsk Oblast, on the northern slopes of the eastern Sayan Mountains. It then flows over the Central Siberian Plateau, and passes the towns of Nevanka and Nizhneudinsk. Logs are floated downriver and loaded onto the Baikal Amur Mainline at Chunsky (station name Sosnovye Rodniki). It then turns west, and joins the Biryusa River to form the Taseyeva River.