Zambia and south covering about three-quarters of the country; and the Congo basin in the north covering about one-quarter of the country. A very small area in the northeast forms part of the internal drainage basin of Lake Rukwa in Tanzania. In the Zambezi basin, there are a number of major rivers flowing wholly or partially through Zambia: the Kabompo, Lungwebungu, Kafue, Luangwa, and the Zambezi itself, which flows through the country in the west and then forms its southern border with Namibia, Botswana and Zimbabwe. Its source is in Zambia but it diverts into Angola, and a number of its
P12 road (Zimbabwe) Highway which runs from Lusaka to Chirundu. Here it is called the Siavonga Road. On the Zimbabwean side its begins from a junction with R3/A1 Highway which runs from Harare to Chirundu at Makuti. For those not worried about crossing borders the M15 Highway is the shortest route from Chirundu, Zimbabwe to Kariba via Chirundu, Zambia and Siabonga. It is only 72 km, which is the Chirundu, Zimbabwe to Kariba via Makuti's 144 km. From the Chirundu Border Post to the M15 Highway junction with Zambia's T2 Highway is 19 km, then 53 km to Kariba. (SOURCE MAPS) The Highway