Lake Mweru

"Lake Mweru (also spelled Mwelu, Mwero) is a freshwater lake on the longest arm of Africa's second-longest river, the Congo. Located on the border between Zambia and Democratic Republic of the Congo, it makes up 110 km of the total length of the Congo, lying between its Luapula River (upstream) and Luvua River (downstream) segments." [Lake Mweru. Wikipedia]