Great Britain. War Office. General Staff. Geographical Section. Provisional G.S.G.S. 3980. United States. Army Map Service. Alternate title: 1:100,000 Tripoli. Sheet 1668, El-Hammadia and Sheet 1669, Nalut. Relief shown by 25 metres and 5 metre (approximate) contour interval and spot heights. Reproduced by Great Britain. Army. Royal Engineers. Field Survey Coy., 512 (A. Fd. Svy) Coy R. E. from Italian 1:100,000 sheet, El-Hammadia, published by the Istituto Geografico Militare, 1938, and Italian 1:100,000 sheet, Nalut dated 1935. Map is part of a set of 31 sheets.