Nahr al-Allan
The 883rd longest river in the world
Nahr al-'Allan (also Nahr 'Allan, Wadi 'Allan etc) is a river in southern Syria which traditionally marks the natural boundary between the Hauran plain and the Golan Heights, though this boundary can alternatively be placed at Nahr al-Ruqqad instead. The Allan is one of the tributaries of the Yarmuk, which marks part of the border between Syria and Jordan.
Flows through: Syria.
River data from Wikidata (CC0); lengths normalised to a common unit.