Regiunea Dobrogea, cuprinde partea sud-estica a Romaniei si este delimitata de Delta Dunarii in partea de nord-est, Muntii Macinului la nord, Marea Neagra la est si granita cu Bulgaria in sud.

Suprafata Dobrogei este de cca. 21.200 kmp si este locuita de aproximativ 972.000 de locuitori. Teritoriul Dobrogei este cel mai vechi teritoriu al Romaniei, Muntii Macin s-au format cu peste 600 milioane de ani in urma (dovada sisturile verzi proterozoice ale podisului Casimcea).

Forajele geologice a adus la suprafata roci si sedimente chiar mai vechi, de cca.1,6 miliarde de ani.

The Dobrogea region comprises the south-eastern part of Romania and is delimited by the Danube Delta in the north-east, the Macin Mountains to the north, the Black Sea to the east and the border with Bulgaria to the south.

The surface of Dobrogea is approx. 21,200 sq km and is inhabited by approximately 972,000 inhabitants. The territory of Dobrogea is Romania's oldest territory, the Macin Mountains formed more than 600 million years ago (proof of the proterozoic green shale of the Casimcea plateau).

Geological drilling has brought to the surface rocks and sediments even older, of about 1.6 billion years.