The Orontes River flows north alongside the range on its eastern verge in the Ghab valley, a longitudinal trench, and then around the northern edge of the range to flow into the Mediterranean. Another important river is Nahr al-Kabir al-Shamali, a river running from the Turkish border and to the southwest to flow in the Mediterranean with the "16 Tishreen dam", one of the most important in the region, being constructed to use the river power generation, storage of rain and river water, and the creation of "Mashqita lake".