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Ngorongoro Lengai UNESCO Global Geopark is located in Northern Tanzania (East Africa). It encompasses the districts of Ngorongoro, Karatu, and Monduli in the Arusha region. The area is confined to the North and North-West by the Serengeti National Park, Lake Natron to the East, the left arm of the Great Rift Valley to the South, and Maswa Game Reserve to the West. Its altitudes range from the lowest areas, the main Crater (600 m) to the highest point, the Oldonyo Lengai (2,962 m). The Oldoinyo Lengai, ‘Mountain of God’ or ‘Holy Mountain’ in Maasai language, is the youngest active stratovolcano (2,962 m), situated at the northern end of the Ngorongoro Volcanic Highlands in the East African Rift Valley (EARV), 16 km south of Lake Natron in the Arusha region. It is the first of the volcanic systems of the EARV and uniquely produces natro-carbonatite lava, which is almost completely silicon-free. The Olduvai Gorge is one of the famous paleontological sites in the world. It is a steep sided, 30 to 100 m deep and 56 km long stream-cut ravine. The exposed volcanic beds were formed in the Pleistocene (40,000 to 2.6 million years ago). These beds yield an unsurpassed record of past environments and fossil hominids attributed to Australopithecus (Paranthropus) Boisei, Homo habilis and Homo erectus, and artefacts from Oldowan, Acheulean to Middle and Late Stone Age; and a wide range of fossilized faunal remains. The Laetoli is another of the key paleontological and paleoanthropological site in Afric. It is a Plio- to Pleistocene site (2.6 to 5 million years old) located 45 km south of the Olduvai Gorge site museum. It is famous for the Hominids’ footprint trail, which best portrays the history of human bipedal mode of locomotion, an important stage of in evolutionary trends. One of the Geopark’s central features, the Ngorongoro Crater, harbors a great diversity of wildlife species, like elephants, black rhinos, lion, gazelles, and other large mammals, living in co-existence with humans.