The eastern most of the major northern cities, Umm al Jimal, is located at the edge of the eastern basalt plain, along a secondary road that was close to the junction of several ancient trade routes that linked central Jordan with Syria and Iraq. Among the most interesting structures to visit are the tall barracks with their little chapel, several large churches, numerous open and roofed water cisterns, the outlines of a Roman fort and the remains of several town gates.