Luangwa River ago, there was no way out and the Luangwa Rift filled with a Rift Valley Lake called the Madumabisa Lake, which rivalled Lake Malawi in size. The water of the lake overflowed in a river to the south-west, towards what is now the Kalahari, where it combined with the Okavango, Upper Zambezi, Cuando and Kafue rivers, emptying into the Limpopo River and flowing to the Indian Ocean. Several geological events combined to produce the current river systems. Faulting produced another graben just to the south of the Luangwa Rift, and running east-west: the Zambezi Rift Valley and the Chicoa Trough.
Serorome River Sources Serorome River The Serorome River is a river in the Central District of Botswana, a tributary of the Limpopo River. At one time the western Kalahari Region was a large, shallow inland lake, draining into the Limpopo through the Serorome Valley. Later geological upheavals re-oriented the rivers in the region to mainly flow northeast into the Zambezi. The Serorome valley is the exception, still leading to the Limpopo via a rift fault. Today the river flows through relatively flat, semi-arid country with savannah grasslands, shrubs and trees. The river flows occasionally in the rainy season, which lasts from November