Casemate rooms line up, one behind the other, in the walls of the Nahal Aqrav fortress, located in the central Negev desert. Transverse walls partition the area between the parallel, casemate walls to create 24 casemate rooms along the fort’s 406-foot circumference. About 8 feet wide, and ranging from 10 to 25 feet long, these casemate rooms may have served as lodgings and storage facilities.