Zambia the plateau in a curve north east to south west, extended west into the heart of the plateau by the deep valley of the Lunsemfwa River. Hills and mountains are found by the side of some sections of the valley, notably in its north-east the Nyika Plateau () on the Malawi border, which extend into Zambia as the Mafinga Hills, containing the country's highest point, Mafinga Central (). The Muchinga Mountains, the watershed between the Zambezi and Congo drainage basins, run parallel to the deep valley of the Luangwa River and form a sharp backdrop to its northern edge, although
Zambia Democratic Republic of Congo (47,300 refugees from the DRC living in Zambia in 2007), Angola (27,100; see Angolans in Zambia), Zimbabwe (5,400) and Rwanda (4,900). Beginning in May 2008, the number of Zimbabweans in Zambia also began to increase significantly; the influx consisted largely of Zimbabweans formerly living in South Africa who were fleeing xenophobic violence there. Nearly 60,000 refugees live in camps in Zambia, while 50,000 are mixed in with the local populations. Refugees who wish to work in Zambia must apply for official permits which can cost up to $500 per year. Zambia is officially a Christian nation