A common feature throughout the Hauran is the basaltic topography, though altitude and soil vary between the Hauran's subregions. The Nuqrah, Jaydur and Jabal Hauran consist of arable land derived from decomposed basaltic, volcanic rock. The Nuqrah is a relatively low plateau measuring roughly with an average elevation of above sea level. Its land is characterized by vast, contiguous tracts of fertile, basalt-derived soil. In contrast to the Nuqrah, the Jaydur's landscape is more fractured and rocky. Its average elevation ranges between above sea level, with some volcanic cones reaching above above sea level, including Tell al-Hara. In terms of its landscape and cinder cones, the Jaydur is a topographic continuation of the Golan Heights. The Jabal Hauran was formed by large lava flows into a roughly massif of volcanic hills, the highest point of which is over above sea level in the range's center. The Lajat comprises a topography of depressions, rifts and ridges with scattered arable patches, and is characterized by rocky soil and scarce vegetation. Its average elevation is between above sea level, though some of the area's volcanic cones are over with the highest over .