1) International river of Africa 
Black Volta is a river that flows through Ghana flowing about 1,352 km (840 mi) to the White Volta in Ghana. The Black Volta separates the Northern region of North Ghana`s southern border and the Brong-Ahafo region of South Ghana`s northern border. Black Volta forms a small part of the international border between Ghana and Ivory Coast, and also.....
One of the two main upper branches of the River Volta, running through Burkina Faso and Ghana
a river in W Africa, in Ghana: the upper branch of the Volta River. ab. 500 mi. (800 km) long.