Democratic Republic of the Congo (until 1997 Zaire)Kahuzi-Bi間a National Park (Sud-Kivu Province); 6000 square kilometers in size; mountain and lowland rainforests; originally founded in 1970 to protect the mountain and lowland gorillas. Today with a focus on sustainability and ecotourism. UNESCO World Heritage Site since 1980. Landscape at Lake Kiwu. Dealer in the nearby district town of Bukavu with coltan illegally mined in the national park. Coltan is a tantalum ore that is needed for cell phones; computers and almost every electronic device (tantalum electrolytic capacitors).Bukavu; 2002.