Four kilometres within the boundary dividing the British Mandated Territory of Transjordan from Syria, 1000 metres above sea level, and on the northern limit of the plain south of the Jabal Druze (Hauran), lie the ruins of Umm el-Jamal. The city is twenty kilometres from Mafrak, where the pipe-line and road from Iraq cut the Hijaz railway on their way to Haifa on the Mediterranean. The Druze Mountain dominates the plain from the north and this monument lies at the foot, the most westerly of a series of ruined basalt-built towns and the most interesting.

The surrounding plain is not a desert of sand. Its ancient fertility is shown by the old field boundary stones, now wasted by wind-erosion and neglect, leaving a dry exhausted soil thinly sprinkled with desert plants and strewn in parts with basalt boulders grey with lichen. Nowadays the rainfall in these parts is negligible and an attempt some years ago to restart cultivation around Mafrak failed; for the soil was just dust, carried off by the wind in great clouds when ploughing was attempted. Mafrak is now inhabited, water having been found some hundreds of metres down by boring; and it was the outpost from which men and materials went forward to build the road and pipe-line now stretching down the corridor between Syria and Saudi Arabia to Iraq. Ancient trade routes converged in this neighbourhood and the name ‘Mafrak ’ signifies the ‘Junction’. It was in antiquity a strongly fortified site and later a station on the Haj route.