The East European Plain (also called the Russian Plain, or historically the Sarmatic Plain) is a vast interior plain extending east of the North European Plain, and comprising several plateaus stretching roughly from 25 degrees longitude eastward. It includes the westernmost Volhynian-Podolian Upland, the Central Russian Upland, and on the eastern border, encompasses the Volga Upland. The plain includes also a series of major river basins such as the Dnepr Basin, the Oka–Don Lowland, and the Volga Basin. Along the southernmost point of the East European Plain are the Caucasus and Crimean mountain ranges. Together with the North European Plain (covering much of north-western France, Netherlands, Germany to north-eastern Poland), and covering the Baltics (Estonia, Latvia and Lithuania), Moldova, south-eastern Romania, and its most southern expansion – the Danubian Plain in Northern Bulgaria, (including Ludogorie and Southern Dobruja), it constitutes the majority of the Great European Plain (European Plain), the greatest mountain-free part of the European landscape. The East European Plain covers all or most of the Baltic states, Belarus, Ukraine, Moldova, Romania, and European Russia. The plain spans approximately and averages about in elevation. The highest point of the plain, located in the Valdai Hills, is . Boundaries West: Baltic Sea, Oder and Lusatian Neisse, Sudetenland, Carpathians (Outer Western Carpathians, Outer Eastern Carpathians, Southern Carpathians, Serbian Carpathians). South: Balkan Mountains, Black Sea, Crimean Mountains, Caucasus, The Caspian Sea and the Sea of Azov, Ustyurt Plateau. East: Ural Mountains and Turan Depression. North: White Sea, Barents Sea, Kara Sea, Scandinavian Mountains. Regional subdivisions Belarus Belarusian Ridge Polesia (Belarus, Ukraine) Bulgaria Danubian Plain (Bulgaria) (southern portion of the Lower Danubian Plane) Estonia Kazakhstan (European part) Latvia Lithuania Poland Roztocze Mazovian Lowland Romania / Moldova Moldavian Plateau (Moldova, Romania, Ukraine) Wallachian Plain (northern portion of the Lower Danubian Plane) Russia (European part) Timan Ridge Northern Ridge (Uvaly) Mari Depression Valdai Hills Smolensk–Moscow Upland (Russia, Belarus) Central Russian Upland (Russia, Ukraine) Oka–Don Lowland Volga Upland Obshchy Syrt Caspian Depression Ukraine Sian Lowland Volhynian-Podolian Upland Podolian Plateau Polesian Lowland Dnieper Upland Kyiv Mountains Central Upland Black Sea Lowland Azov Upland / Donets Ridge Other major landforms The following major landform features are within the East European Plain (listed generally from north to south). North Russian Lowlands Baltic Uplands Belarusian Ridge Kuma–Manych Depression Bugulma-Belebey Upland Vyatskie Uvaly Largest rivers Volga River Danube Ural River Vistula Dnieper River Don River (Russia) Pechora River Kama River Oka