The territory of Northern Rhodesia was administered by the south africa Company from 1891 until takeover by the UK in 1923. During the 1920s and 1930s, advances in mining spurred development and immigration. The name was changed to Zambia upon independence in 1964. In the 1980s and 1990s, declining copper prices and a prolonged drought hurt the economy. Elections in 1991 brought an end to one-party rule, but the subsequent vote in 1996 saw blatant harassment of opposition parties. Most of the country has savanna-type vegetation--grasslands interspersed with trees. Teak forests are in the southwest. Animals include elephants, lions, rhinoceroses, and several varieties of antelope. of overwhelming importance are the rich mineral veins of the country's copper belt. The belt extends down into Zambia from southern DRC and contains major deposits of copper, cobalt, and other minerals. Zambia also has substantial hydroelectric potential. The Kariba Dam on the Zambezi River is the country's main power source. The Recent privatization of the huge government-owned Zambia Consolidated Copper Mines should greatly improve Zambia's prospects for international debt relief, as the government will no longer have to cover the mammoth losses generated by that sector. Inflation and unemployment rates remain high, however.