The republic of Sudan is the largest country in Africa. Most of Sudan occupies a great plain rimmed by hills and mountains everywhere but on the north. From elevations of 2,000 to 3,000 feet above sea level along the edges, the plain drops gradually along the north.
Sudan has its north as Egypt, Red Sea and Libya, in the west
Chad, Central AfricanRepublic, in the south Uganda, Kenya, in the east Eritrea,Ethiopia.
Northern Sudan lies within the Sahara , and includes part of the sandy, almost uninhabited Libyan desert and all of the Nubian desert. Separating the desert plains from the coast are thew barren Red sea hills, whose highest peaks rise to slightly more than 7,000 ft . A t about the latitude of Khartoum, Sudan's capital, the desert begins to merge with grassland that covers much of the central part of the country. Breaking the monotonous expanse of plain are the low Nuba Mountains, whose peaks reach 10,000 ft .
Southern Sudan is largely a region of swamps, savannas, and tropical forests.entered on the southern White Nile valleyis the Sudd
