Burkina Faso . Burkina Faso is therefore a relatively flat country. The country owes its former name of Upper Volta to three rivers which cross it: the Black Volta (or "Mouhoun"), the White Volta ("Nakambé") and the Red Volta ("Nazinon"). The Black Volta is one of the country's only two rivers which flow year-round, the other being the Komoé, which flows to the southwest. The basin of the Niger River also drains 27% of the country's surface. The Niger's tributaries – the Béli, Gorouol, Goudébo, and Dargol – are seasonal streams and flow for only four to six months a year. They
Lake Volta Lake Volta Lake Volta is the largest reservoir, man-made lake, in terms of surface area contained behind the Akosombo Dam. It is completely within the country of Ghana and has a surface area of . Stretching from Akosombo in the south to the northern part of the country, it is one of the largest man-made reservoirs in the world. Lake Volta lies along the Greenwich meridian, and just six degrees of latitude north of the Equator. The lake's northernmost point is close to the town of Yapei, and its southernmost extreme is at the Akosombo Dam, downstream from Yapei. Akosombo