The modern administrative center of southern Bulgarian Black Sea coast, the city of Bourgas, is situated along the shores of the wide Bourgas Bay. The fertile Bourgas Lowland is located to the west. Three firths – Atanasovsko Lake, Bourgas Lake (Vaia) and Mandrensko Lake – are situated in the littoral zone around the city, fed by the rivers running through lowland. To the north the area is framed by the easternmost parts of Balkan Mountain range and to the south by Strandja Mountain, rich in polymetallic ores.
