Central Serbia takes up, roughly, the territory of Serbia between the natural borders consisting of the Danube and Sava (in the north), the Drina (in the west), and the unnatural border to the southwest with Montenegro, south with Kosovo and North Macedonia, and to the east with Bulgaria, with a small strip of the Danube with Romania in the northeast. The Danube and Sava divides central Serbia from the Serbian province of Vojvodina, while the Drina divides Serbia from Bosnia and Herzegovina. The Great Morava, a major river, goes through central Serbia. Extensions of three major mountain chains are located within Serbia proper: Dinaric Alps in the west and south, and the Carpathians and Balkan Mountains in the east.