Sediments from the São Francisco River Enter Sobradinho Lake9.9S 42.1W
The São Francisco River empties tan sediments into Sobradinho Lake in the Brazilian state of Bahia. The sediments gradually diffuse into the lake, such that the waters near the inflow appear tan and those near the outflow appear dark green.
The lake itself is one of the largest artificial reservoirs in the world, with an area of 4,214 square kilometres (1,627 sq mi). The Sobradinho Dam, one of four hydroelectric plants built along the São Francisco River, has a storage capacity of 34.1 billion m3 of water.