Bwindi Impenetrable Forest National Park lies in south western Uganda on the edge of the Eastern Rift Valley. Its mist coverd hillsides are blanketed by one of Uganda's oldest and most biologically diverse rain forests, which dates back over 25000 years and contains mote than 400 species of plants. The impenetrable forest more importantly protects an estimated 320 mountain gorillas which is roughly half of the worlds gorilla population which can be tracked by tourists.
This biologically diverse region also provides shelter to over 120 mammals, including primates such as chimpanzees and baboons as well as elephants and antelope.
There are over 350 species of birds are hosted in the forest.
In 1991, Impenetrable Central Forest Reserve along with Mgahinga Gorilla Reserve and Rwenzori Mountains Reserve was designated as a national park and renamed Bwindi Impenetrable National Park. It covered an area of 330.8 square kilometers. The national park was declared in part to protect a range of species within it, most notably the mountain gorilla. Gorilla tracking became a tourist activity in April 1993, and the park became a popular tourist destination. In 1994, it was inscribed on the World Heritage List and a 10 square kilometer area was incorporated into the park. The park's management changed: Uganda National Parks, since renamed Uganda Wildlife Authority, became responsible for the park. In 2003 a piece of land next to the park with an area of 4.2 square kilometers was purchased and incorporated into the park.