Sudd Swamp from space, May 1993. This photograph was taken during the driest time of year—summer rains generally extend from July through September.

The Sudd (Arabic sadd, "barrier") is a vast swamp formed by the Nile in southern Sudan. Its size is variable, but during the wet season it may be over 130,000 km² in area. Image File history File links Download high resolution version (639x639, 164 KB)Sudd Swamp, Southern Sudan - May 1993 image description here File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... Image File history File links Download high resolution version (639x639, 164 KB)Sudd Swamp, Southern Sudan - May 1993 image description here File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... Arabic (العربية al-arabiyyah, or less formally arabi) is the largest member of the Semitic branch of the Afro-Asiatic language family (classification: South Central Semitic) and is closely related to Hebrew and Aramaic. ... A freshwater swamp This article is about the wetland type (a landform). ... The Nile in Egypt Length 6 695 km Elevation of the source 1 134 m Average discharge 2 830 m³/s Area watershed 3 400 000 km² Origin  Africa Mouth  the Mediterranean Basin countries Uganda - Sudan - Egypt The Nile (Arabic: النيل an-nÄ«l), in Africa, is one of the two... Southern Sudan is a region of Sudan. ... The wet season and the rainy season are terms used to describe seasons in which the average rainfall in a region is significantly increased. ... Square kilometre (US spelling: Square kilometer), symbol km², is an SI unit of surface area. ...

In the Sudd, the river flows through multiple tangled channels in a pattern that changes each year. Papyrus grows in dense thickets in the shallow water, which is frequented by crocodiles and hippopotami. Sometimes the matted vegetation will build up into an island, but these eventually break up. Blank papyrus. ... Genera Crocodylus Osteolaemus Tomistoma See full taxonomy. ... Binomial name Hippopotamus amphibius Linnaeus, 1758 The Hippopotamus (Hippopotamus amphibius) or Greek ίππόποταμος (river horse) is a large, plant-eating African mammal, one of only two living and three (or four) recently extinct species in the family Hippopotamidae. ...

There are three main waterways through the swamp; the Bahr-el-Zaraf ("River of the Giraffes"), the Bahr el Ghazal ("River of the Gazelles"), and the Bahr al Jabal, which is the main connection to the Mountain Nile. The early explorers searching for the source of the Nile experienced considerable difficulties, sometimes taking months to get through. The Bahr el Ghazal is both a river and a region of southwestern Sudan, the region taking its name from the river. ... Bahr al Jabal is one of the 26 wilayat or states of Sudan, with an area of 22,956 km2. ... The White Nile is a river of Africa, one of the two main branches of the Nile, the other being the Blue Nile. ... Lake Victoria, as seen from space Lake Victoria or Victoria Nyanza is one of the Great Lakes of Africa. ...

In The White Nile, Alan Moorehead says of the Sudd, "there is no more formidable swamp in the world". Alan Moorehead (1910-1983) was born in Melbourne, Australia. ...