Shashe River Shashe is a sand filled channel, with extensive alluvial aquifers in the river channel and below the alluvial plains. These supply water for a number of irrigation schemes including Sibasa and Shashi. More than two million years ago, the Upper Zambezi River used to flow south through what is now the Makgadikgadi Pan (presently a vast seasonal wetland) to the Shashe River and thence the Limpopo River. There is a road bridge and a rail bridge south of Francistown. The lower Shashe River forms the border between Botswana and Zimbabwe and is unbridged. However, at Tuli, both sides of the
Kalambo River see Kalambo Falls, including coverage of the important archaeological sites discovered there. Kalambo River The Kalambo River forms part of the border between Zambia and Tanzania. It is a comparatively small stream which rises in the highlands north-east of Mbala at an elevation of about 1800 m and descends into the Albertine Rift, entering the southeastern end of Lake Tanganyika at an elevation of about 770 m, in a straight-line distance of only about 50 km. This accounts for its main claim to fame, its waterfall, Kalambo Falls, which is Africa's second highest falls (after South Africa's Tugela Falls). Below