Pontic inland dunes

Inland dunes of the Pontic plain and of neighbouring basins, including the lower Danube basin of Oltenia and Muntenia and the northern Thracian plain, the northern Black Sea-Sea of Azov plain with the basins of the Dnieper and the Don, northeast to the Volga, east to the Caspian deserts and semideserts, southeast to the pre-Caucasian hills in the basins of the Kouban, the Manytch, the upper Kuma and upper Terek (units E1.2D1 and E1.2D3).