Ancient tombs on Don river near the Black Sea, Russia.
Ancient Tombs on the European side of the Don, perhaps the Altars of Alexander, or of Caesar, mentioned by Ptolemy.
CLARKE, Edward Daniel. Travels in various countries of Europe, Asia and Africa by Edward Daniel Clarke LL.D. Part the First. Russia Tatary and Turkey, London, Printed for T. Cadell and W. Davies, 1810.
The Gennadius Library - The American School of Classical Studies at Athens