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
Volta Redonda Volta Redonda Volta Redonda () is the name of a municipality in the Rio de Janeiro state of Brazil with an area of 182.81 km², located from 350m to 707m above the sea level (22º31'23" S, 44º06'15" W) and with a population of 259,811 inhabitants (estimated in 2009). The area around the city has nearly 700,000 km². Its name (which is Portuguese for "Round Turn") is due to the round shape of a curve in the Paraíba do Sul river around which the city was built. Situated in Volta Redonda is Companhia Siderurgica Nacional (CSN), Brazil's second largest steel producer.