Ngorongoro Conservation Area Authority (Crater)
The 8,292km² Ngorongoro Conservation Area (NCA) has been recognized as a UNESCO World Heritage Site for four reasons: it contains crucial paleontological evidence of human evolution; the presence of Ngorongoro Crater, the largest unbroken caldera in the world; the large concentration of wildlife, including 25 000 large animals; the variations in climate, landforms and altitude, resulting in several overlapping ecosystems and distinct habitats. Ngorongoro crater is located west of the great rift valley which runs from the Red Sea to Lake Nyasa in southern Tanzania. Ngorongoro was an active volcano some eight million years ago, whose cone collapsed, leaving a crater. It is the second largest extinct crater in the world, and today shelters the most beautiful wildlife haven left on earth with a spectacular concentration of wildlife and stunning views. All of the big five are seen - elephant, rhino, lion, leopard and buffalo. Other game includes: cheetah, hyena, zebra, warthog, impala, hartebeest, eland and lots of other members of the antelope family, birdlife and smaller mammals of sorts.