Notwane River

The Notwane River is a river in southeastern Botswana. Certain sections of its course form the international boundary with South Africa. Its mouth is at the head of the Limpopo River. It has a catchment area of 18,053 square kilometers.CourseThe Notwane rises about south of Ramotswa, and runs along the border in a northeast direction to enter the Limpopo at the same longitude as Mahalapye. The Notwane has its source in the sandveld, at the eastern fringes of the Kalahari Desert. It flows roughly northeastwards past the most densely populated area of Botswana, passing east of Lobatse and close to Gaborone. Finally it joins the left bank of the Limpopo River at the border with South Africa, just 6 km short of the confluence of the Limpopo with the Matlabas River.The Notwane basin is drained by the Notwane itself and its tributaries the Taung, Metsemaswaane and Nywane. Its main tributaries are the Taung, Peleng and Nywane rivers. All the rivers in the Notwane basin are ephemeral experiencing mostly brief, seasonal flow depending from the rainfall. The Notwane and Taung riverbeds are dry during the dry season and in years of drought they may be completely dry the whole year round. All these rivers may cause flash floods.