The Sobradinho Reservoir is a large reservoir located in Sobradinho, north of the Brazilian state of Bahia. The reservoir measures approximately 320 km (200 mi) long, 4,214 km² (1,627 sq mi) in surface area, and a storage capacity of 34.1 km³ (8.2 cu mi) at its nominal elevation of 392.5 m (1,287.7 ft), making it the 12th largest reservoir (artificial lake) in the world.