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Map of Nile tributaries in modern Sudan, showing the Yellow Nile The Nile represented in an ancient Roman mosaic found from the ruins of Pompeii. The Yellow Nile is a former tributary that connected the Ouaddaï highlands of eastern Chad to the Nile River Valley c. 8000 to c. 1000 BCE. [49] Its remains are known as the Wadi Howar.
In the middle Nile, after the dam, due to the presence of waterfalls north of Khartoum (Sudan), the river is navigable in just three stretches. The first is from the Egypt–Sudan border to the southern tip of Lake Nasser. The second is the section between the third and fourth cataracts.
The Upper Nile plant is the Egyptian lotus, and the Lower Nile plant is the Papyrus Sedge (Cyperus papyrus), although it is not nearly as plentiful as it once was, and is becoming quite rare. [ 20 ] Several hundred thousand water birds winter in the delta, including the world's largest concentrations of little gulls and whiskered terns .
The Nile valley extends approximately 800 km from Aswan to the outskirts of Cairo. The Nile Valley is known as Upper Egypt, while the Nile Delta region is known as Lower Egypt. Steep rocky cliffs rise along the banks of the Nile in some stretches, while other areas along the Nile are flat, with space for agricultural production.
Upper Egypt (Arabic: صعيد مصر Ṣaʿīd Miṣr, shortened to الصعيد, Egyptian Arabic pronunciation: [es.sˤe.ˈʕiːd], locally: [es.sˤɑ.ˈʕiːd]; Coptic: ⲙⲁⲣⲏⲥ, romanized: Mares) is the southern portion of Egypt and is composed of the Nile River valley south of the delta and the 30th parallel N.
The White Nile (Arabic: النيل الأبيض an-nīl al-'abyaḍ) is a river in Africa, the minor of the two main tributaries of the Nile, the larger being the Blue Nile. [4] The name "White" comes from the clay sediment carried in the water that changes the water to a pale color.
The Cataracts of the Nile are shallow lengths (or whitewater rapids) of the Nile river, between Khartoum and Aswan, where the surface of the water is broken by many small boulders and stones jutting out of the river bed, as well as many rocky islets. In some places, these stretches are punctuated by whitewater, while at others the water flow is ...
Over geological time that sea arm gradually filled with silt and became the Nile Valley. [citation needed] Eventually, the Nile valley bed silted up high enough to let the Nile periodically overflow into the Faiyum Hollow, forming a lake. The lake is first recorded from about 3000 BC, around the time of Menes (Narmer). However, for the most ...