The eastern border of Asia is mountains.
Asia . 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 Caucasus Mountains are a mountain system in Eurasia between the Black Sea and the Caspian Sea in the Caucasus region . The Piedmont Mountains are outlying mountains , sometimes called `` low mountains '' , that typically occur in the western piedmont near the Blue Ridge . The Ural Mountains ( [ Ура́льские го́ры , r = Uralskiye gory , p = ʊˈralʲskʲɪjə ˈgorɨ ] Урал тауҙары , Ural tauźarı ) , 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 .