Mountain gorillas live only in the thick vegetation of Uganda's Bwindi Impenetrable Forest National Park and along the dormant Virunga mountain range that extends across Rwanda's Volcanoes National Park, Uganda's Mgahinga Gorilla National Park, and the Democratic Republic of Congo's Virunga National Park.
Environmentalists estimated, in 1981, that there were only 254 mountain gorillas left on earth, but due to intense global conservation attempts, the tiny population is growing slowly. Since these critically endangered creatures can not survive in captivity, walking to their natural habitat is the only way to see them: misty cloud forests that can reach altitudes of 14,763 feet.