 The Vršac mountains have a shape of an arch, where the basic mountain mass takes the central position, while the hills extend to the south and north.The mountains are built of Paleozoic rocks (which date back over 260 million years) which are surrounded by Neogene sediments (about 60 mya), including those of the ancient Pannonian sea (about 25 mya).Contrary to some literature data, the Vršac Mountains are not part of the Carpathians but are a Pannonian island mountain according to their geotectonic position and geological structure.