Zambia tributaries rise in Angola's central highlands. The edge of the Cuando River floodplain (not its main channel) forms Zambia's southwestern border, and via the Chobe River that river contributes very little water to the Zambezi because most is lost by evaporation. Two of the Zambezi's longest and largest tributaries, the Kafue and the Luangwa, flow mainly in Zambia. Their confluences with the Zambezi are on the border with Zimbabwe at Chirundu and Luangwa town respectively. Before its confluence, the Luangwa River forms part of Zambia's border with Mozambique. From Luangwa town, the Zambezi leaves Zambia and flows into Mozambique, and
Plumtree, Zimbabwe Plumtree, Zimbabwe Plumtree is a small town in Zimbabwe. Alongside marula trees, wild plum trees ('umqokolo' in Botoko language) grew abundantly in the area, hence the name Plumtree. The town is located in Bulilimamangwe District, Matabeleland South Province, in southwestern Zimbabwe, at the international border with Botswana. It is located about , by road, southwest of Bulawayo, the nearest large city. The town sits on the main road between Bulawayo in Zimbabwe and Francistown in Botswana, about , further southwest from Plumtree. The border is defined by the Ramokgwebana River. The village of Ramokgwebana is opposite Plumtree on the Botswana