Kwango River

The fourth one in Top 10 Longest Rivers in Angola that Toplist would like to introduce to you is Kwango River. The Cuango or Kwango (Portuguese: Rio Cuango) is a river that flows through Angola and the Democratic Republic of the Congo. It is the Congo River basin's largest left bank tributary of the Kasai River. It runs through Angola's Malanje. The Chitamba-Lulo Kimberlite Cluster in Lunda Norte Province has large diamond resources discovered in the main river channel and on flats and terraces in the flood plains of the Kwango River basin.

The Cuango River flows south–northwest from the highlands of Alto Chicapa in the Angolan province of Lunda Sul, crossing the border with the Democratic Republic of the Congo, and joining the Kasai River near Bandundo. Following that, it empties into the Congo River. The river forms a deep valley as it rises on the Lunda plateau.

It is 1,100 kilometers (680 miles) long from its headwaters to its confluence with the Congo River, with 855 kilometers (531 miles) in Angola. The river drains a catchment area of 263,500 square kilometers in total (101,700 sq mi). The Wamba and Kwilu rivers are its right bank tributaries.

The Cuango River has several falls and rapids. The river is mostly navigable in its lower reaches, which stretch 307 kilometers (191 miles) from its mouth to the Kingushi rapids. Partial navigation is also possible in the middle stretches of the river between Kingushi and the Franz Josef waterfalls, spanning approximately 300 kilometers (190 mi).

The river's lean season flow occurs in August. The average annual discharge in the river's lower reaches is 2,700 cubic metres (95,000 cu ft)/s.

Length: 1,647 ft (502 m- shared with Democratic Republic of the Congo )