 Other major cities on tributaries of the Volga include Ryazan, Dzerzhinsk, Kaluga and Oryol on the Oka River, Penza on the Sura River, Perm and Naberezhnye Chelny on the Kama River, Yoshkar-Ola on the Malaya Kokshaga River, and Dimitrovgrad on the Bolshoy Cheremshan River.Major cities located on tributaries of the Volga's tributaries include Moscow, the largest city and capital of Russia, on the Moskva River, a tributary of the Oka River.Kirov is located on the Vyatka River, and Ufa, Sterlitamak and Salavat are located on the Belaya River, both tributaries of the Kama River.