Sudan 1:250000 series maps
The 1:250000 scale series of printed maps covered Africa. Although sheet numbers changed, the area covered remained the same, each sheet covering an area of 1.5 degrees of longitude and 1 degree of latitude, at a scale of 1 inch equalling 4 miles. Each part was the equivalent of one sheet of a 1:1000000 scale map, and was made up of 16 sheets, lettered A - P.
Although some areas were mapped before the First World War, comprehensive coverage is reached by the 1920s and 1930s. Reprints of these continued to be made until 1956. In the late 1930s the German Army produced a slightly reduced reprint of these maps (which have not been digitised) and in the 1950s the U.S. Army Map Service reprinted some maps. In the 1960s and 1970s the Republic printed the maps again with revised boundaries and provinces.