The Chusovaya River (Чусовая in Russian), a river in the Sverdlovsk Oblast and Perm Oblast in Russia, a tributary of the Kama River. Its length is 592 km. The area of the basin is 23,000 sq km. It flows into the Chusovoy Cove of the Kamsky Reservoir. The floods usually take place from mid-April to mid-June. The Chusovaya River freezes up between late October_early December and stays under the ice until April-May. Its principal tributaries are Mezhevaya Utka, Serebryanka, Koyva, Us'va, Revda, and Lys'va. The Chusovaya River is widely used for water supply: its water is moved from the Volchikhinsky Reservoir (37 sq km) to the Verkhneisetsky Reservoir to supply Yekaterinburg. Its tributaries have 15 small reservoirs, as well. Main ports: Pervouralsk and Chusovoy.