Koshtan-Tau Koshtan-Tau Koshtan-Tau is one of the great ice-covered giants of the Central Caucasus, rising to 5,152 meters (16,903 feet) in the Russian republic of Kabardino-Balkaria. Towering above a landscape of glaciers, steep ridges, and some of the highest mountains in Europe, it belongs to the extraordinary concentration of 5,000-meter summits surrounding the Bezengi region. …