Fig. 14From: El-Gendi Fortress: a new military and religious geo-archaeological site, Sinai, Egypt: geomorphological and hydrogeological remarksDrainage basins of Wadi Sudr is deduced through using DEM-30 (a) showing the 5th order drainage pattern with the location of the fortress at the basin division (b). The upstream of the 5th order tertiary basin of a DEM 12.5 (c). The satellite images shows the locations of the barrages (d) in a flat-lying land “pink arrows”Back to article page