evidence: Making up the natural border between European Russia and Asia, the Ural Mountains extend from the Arctic Ocean to Kazakhstan's northern border. [...] Russia has 46 provinces (oblasti, singular - oblast), 21 republics (respubliki, singular - respublika), 4 autonomous okrugs (avtonomnyye okrugi, singular - avtonomnyy okrug), 9 krays (kraya, singular - kray), 2 federal cities (goroda, singular - gorod), and 1 autonomous oblast (avtonomnaya oblast') [...] The 21 republics are: Adygeya (Maykop), Altay (Gorno-Altaysk), Bashkortostan (Ufa), Buryatiya (Ulan-Ude), Chechnya (Groznyy), Chuvashiya (Cheboksary), Dagestan (Makhachkala), Ingushetiya (Magas), Kabardino-Balkariya (Nal'chik), Kalmykiya (Elista), Karachayevo-Cherkesiya (Cherkessk), Kareliya (Petrozavodsk), Khakasiya (Abakan), Komi (Syktyvkar), Mariy-El (Yoshkar-Ola), Mordoviya (Saransk), North Ossetia (Vladikavkaz), Sakha [Yakutiya] (Yakutsk), Tatarstan (Kazan'), Tyva (Kyzyl), Udmurtiya (Izhevsk);