Northern Rhodesia the British South Africa Company administered territory of North-Western Rhodesia (now in Zambia), and Portuguese Angola although its boundary with Angola was not marked-out on the ground until later. The northern border of the British territory in North-Eastern Rhodesia and the British Central Africa Protectorate was agreed as part of an Anglo-German Convention in 1890, which also fixed the very short boundary between North-Western Rhodesia and German South-West Africa, now Namibia. The boundary between the Congo Free State and British territory was fixed by a treaty in 1894, although there were some minor adjustments up to the 1930s. Boundaries with
Northern Rhodesia and Luanshya, all on what later became known as the Copperbelt and exploration in 1895 by the British South Africa Company's celebrated American scout, Frederick Russell Burnham, who led and oversaw the massive Northern Territories (BSA) Exploration Co. expedition first established for Westerners that major copper deposits existed in Central Africa. Along the Kafue River in then Northern Rhodesia, Burnham saw many similarities to copper deposits he had worked in the United States, and he encountered natives wearing copper bracelets. Later, the British South Africa Company built towns along the river and a railway to transport the copper through Mozambique.