United States. Army Map Service. United States. Army. Corps of Engineers. Alternate title: Mostaganem. In upper left margin: Algeria 1:10,000. Lambert conical orthomorphic projection. N.W. Africa zone grid. Compiled from the base map of Porte de Mostaganem, 1937, French H.O. chart No. 5696, 1:10,000. Revised from Mostaganem 1:50,000, 1942, A.M.S. and R.A.F. aerial photographs, Mostaganem.