Kasai

The River Kasai is a tributary of the Congo River that runs for 1,338 km. The river, which runs along the boundary between Angola and the Democratic Republic of the Congo, has been the site of serious territorial disputes between the two nations in the past. It is a wealthy river, as diamonds are mined nearby. Its wealth drew the attention of the Portuguese and the British during colonial times when they were not only mining but also transporting slaves down the river. It is still utilized for transportation in the present era.

Aside from that, it has a tropical climate with a mean temperature of 23 degrees Celsius and an annual rainfall of 1,400 millimeters to 1,700 millimeters in the northern sections and up to 2,000 millimeters in the Kasai's southern reaches. It also supports around 200 different fish species. A flooding regime exists, resulting in seasonal and permanent marshes.

Total Length: 1,338 miles