The Bengo is a river in northern Angola with a source in the Crystal Mountains. Its mouth is at the Atlantic Ocean 20 kilometres north of Luanda in Bengo Province. The river is 300 kilometres long with a drainage area of 7,370 square kilometres. There is a large reservoir called Kiminha on the Bengo. There are several small lakes on the lower 9…The Bengo is a river in northern Angola with a source in the Crystal Mountains. Its mouth is at the Atlantic Ocean 20 kilometres north of Luanda in Bengo Province. The river is 300 kilometres long with a drainage area of 7,370 square kilometres. There is a large reservoir called Kiminha on the Bengo. There are several small lakes on the lower 90 kilometres of the river floodplain including Lakes Panguila, Quilunda and Lalama. The Bengo River floodplain is the main source of the agricultural produce for Luanda. Drinking water from the Bengo River was transported to Luanda in barrels by boat before an aqueduct was built in 1889. Trucks deliver much of the city's modern water supply, loaded by pumps in the river.