where is olduvai gorge located (what countries)
Olduvai Gorge The Olduvai Gorge or Oldupai Gorge in Tanzania is one of the most important paleoanthropological sites in the world; it has proven invaluable in furthering our understanding of early human evolution. A steep-sided ravine in the Great Rift Valley that stretches across East Africa, it is about 48 km (30 mi) long, and is located in the eastern Serengeti Plains in the Arusha Region not far, about 45 kilometres (28 miles), from Laetoli, another important archaeological site of early human occupation. The British/Kenyan paleoanthropologist-archeologist team Mary and Louis Leakey established and developed the excavation and research programs at Olduvai Gorge which achieved great advances of human knowledge and world-renowned status.
Gomti River It meets a small river, the Gaihaaee,20 kilometres (12 mi) from its origin. The Gomti is a narrow stream until it reaches Mohammadi Kheri, a tehsil of Lakhimpur Kheri district (about 100 km from its origin), where it is joined by tributaries such as the Sukheta, Choha and Andhra Choha. The river is then well-defined, with the Kathina tributary joining it at Mailani and Sarayan joining it at a village in Sitapur district. A major tributary is the Sai River, which joins the Gomti near Jaunpur. The Markandey Mahadeo temple is at the confluence of the Gomti and the Ganges.