Zambia is an entirely landlocked country covering an area of 752,612 km². To the north it is bordered by the Democratic Republic of Congo and the United Republic of Tanzania, to the west by Angola, to the south west by Namibia, to the east by Malawi and Mozambique, and to the south by Zimbabwe and Botswana. Zambia sits on a gently undulating plateau, which is between 900 and 1,500 metres above sea level. This plateau is a mix of woodland and savannah regions interspersed with lakes, rivers, hills, swamps and lush plains.