Hydrography
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, the Gorouol, the Goudébo and the Dargol – are seasonal streams and flow for only four to six months a year. They still, however, can cause large floods. The country also contains numerous lakes – the principal ones are Tingrela, Bam and Dem. The country contains large ponds, as well, such as Oursi, Béli, Yomboli and Markoye. Water shortages are often a problem, especially in the north of the country.
Read more about this topic: Geography Of Burkina Faso