جبل سمعان
Starting from the valley of the Euphrates, the terrain rises forming the Manbij plain and then sinks again at the Dhahab river valley in the east of Aleppo Governorate. The Dhahab drains the highlands north of Bāb and runs in a north-south direction for about 50 km until it drains into Lake Jabboul. West of the Dhahab valley the terrain rises again forming Mount ʻAqīl (Mount Taymar) (534 m) west of Bāb and Mount Ḥaṣṣ (550 m) west of Lake Jabboul. The terrain sinks again forming the valley of River Quwēq. The endpoint of Quwēq, the Maṭkh swamp (249 m), is the lowest point in Aleppo Governorate. West of the Quwēq is Mount Simeon. South of Mount Simeon are the plains of Idlib. River ʻIfrīn runs west of Mount Simeon. To the west of River ʻIfrīn the land rises again forming Mount Kurd. River ʻIfrīn runs from north to south between Mount Simeon and Mount Kurd and then turns west to the Orontes valley, thus separating Mount Kurd from Mount Ḥārim to the south. Mount Ḥārim is separated from Mount Zāwiya to the south by the Rouj plain, which leads to the Ghab plain in the Orontes valley. The highlands of the western Aleppo plateau are collectively known as the Limestone Massif.