Okavango River

The fifth one in Top 10 Longest Rivers in Angola that Toplist would like to introduce to you is Okavango River. The Okavango River (also known as the Okovango or Okovanggo River) is a river in southwest Africa. It is the fourth-longest river system in southern Africa, stretching 1,700 kilometers southeastward (1,100 mi). It begins at an elevation of 1,300 meters (4,300 feet) in Angola's sandy highlands, where it is known as Rio Cubango in Portuguese. It flows into Botswana from further south, where it forms part of the border between Angola and Namibia. The Okavango Delta lacks an outlet to the sea. Instead, it empties into the Okavango Delta or Okavango Alluvial Fan, a Kalahari Desert endorheic basin.

The upper reaches of the Cuito (an Okavango tributary river) in Angola are clogged due to controlled burns of vegetation, reducing water flow downstream as the accumulated water instead flows into the sand.

The river drops 4 meters before entering Botswana in a series of rapids known as Popa Falls, which are visible when the river is low, as it is during the dry season.

During the rainy season, an outflow to the Boteti River seasonally discharges to the Makgadikgadi Pans, which contain a large area of rainy-season wetland where tens of thousands of flamingos congregate each summer. A portion of the river's flow enters Lake Ngami.

Length: 1,700 km (1,100 mi-shared with Namibia and Botswana)