Claim: The eastern border of Asia is mountains.
Evidence: The most commonly accepted boundaries place Asia to the east of the Suez Canal , the Ural River , and the Ural Mountains , and south of the Caucasus Mountains and the Caspian and Black Seas.
The Ural Mountains -LRB- -LSB- Ура́льские го́ры , r = Uralskiye gory , p = ʊˈralʲskʲɪjə ˈgorɨ -RSB- Урал тауҙары , Ural tauźarı -RRB- , or simply the Urals , are a mountain range that runs approximately from north to south through western Russia , from the coast of the Arctic Ocean to the Ural River and northwestern Kazakhstan.
The Caucasus Mountains are a mountain system in Eurasia between the Black Sea and the Caspian Sea in the Caucasus region.