The Sukhona (Russian: Су́хона) is a river in the European part of Russia, a tributary of the Northern Dvina River. The course of the Sukhona lies in Ust-Kubinsky, Sokolsky, Mezhdurechensky, Totemsky, Tarnogsky, Nyuksensky, and Velikoustyugsky Districts of Vologda Oblast in Russia. It is 558 kilometres (347 mi) long, and the area of its basin 50,300 square kilometres (19,400 sq mi). The Sukhona joins the Yug near the town of Veliky Ustyug, forming the Northern Dvina, one of the biggest rivers of European Russia.