摘要：With respect to its natural geographic features, northeastern Bulgaria is a well detached region of
Bulgaria covering an area of 20,300 sq km. The region includes the eastern part of the Danube Plain and the
northern part of the Black Sea coastline. In the northwestern part, the Danube River starting from Batin
Island, crosses the towns of Russe and Tutrakan, and finally reaches the town of Silistra, in the northeast.
This frontier, which is 150 km long, is shared with the Romanian natural and historical geographic region of
Muntenia (Valahia Maior). In the west and the southwest, the frontier is defined by the watershed between
the Russenski Lom river and the Yantra river. After that, it crosses the valley of the Golyama river, the
watershed between the river Golyama and the river Cherni Lom, and the flat divide with the river
Lyulyakska. From that point forward, the frontier continues southeastwards, to the Fore-Balkan, the northern
side of the Kamchiya part of the Varbishka Mountain. In the east, the frontier is clearly shaped by the Black
Sea. The last frontier, in the northeast, is entirely terrestrial and situated between the town of Silstra and the
Cape Sivriburun. In Romania, there is the historical geographic region Northern Dobrudzha. The paper aims
at rendering the natural potential of resources in northeastern Bulgaria and its meaning for the acceleration of
the cross-border cooperation with the Romanian contact Euroregions.
关键词：natural geographic potential, cross-border partnership, natural geographic division, joined exploitation
