Anglo -Egyptian ] I. GEOGRAPHY PHYSICAL AND POLITICAL ( 1 ) PosiȚION AND FRONTIERS The Anglo -Egyptian Sudan is a region of north eastern Africa, lying approximately between 4º and 23° north latitude and 21° 30' and 30° east longitude . It is bounded on the north by Egypt ; on the east by the Red Sea, Eritrea, and Abyssinia ; on the west and south -west by French Equatorial Africa ; and on the south by Uganda and the Belgian Congo .

The country has (1918 ) a total approximate area of 1,024,000 square miles, and is divided into the follow ing provinces: Halfa , on the Egyptian frontier , 112,300 square miles. Berber, on the right bank of the Nile from the north east frontier to Khartum , 98,600 square miles. Red Sea, comprising the coastal mountains and plain, 27,200 square miles. Dongola, west of the Nile, between Halfa and Kordofan, 124,300 square miles. Khartum , at the junction of the White and Blue Niles , 4,600 square miles . White Nile, comprising the river zone between 12° and 15° 30 ' north latitude, 13,300 square miles . Blue Nile, comprising the eastern Gezira and river zone to about 16 ° north latitude , 12,000 square miles. Kordofan, the central region lying west of the White Nile and north of the Bähr el-Ghazal, 113,700 > square miles.

Nuba Mountains, between southern Kordofan and Upper Nile , 32,200 square miles .