ΙRΑΝ Shushtar, Historical Hydraulic System, inscribed as a masterpiece of creative genius, can be traced back to Darius the Great in the 5th century B.C.
It involved the creation of two main diversion canals on the river Kârun one of which, Gargar canal, is still in use providing water to the city of Shushtar via a series of tunnels that supply water to mills. It forms a spectacular cliff from which water cascades into a downstream basin.
It then enters the plain situated south of the city where it has enabled the planting of orchards and farming over an area of 40,000 ha. known as Mianâb (Paradise).
Το Ιστορικό Υδραυλικό Σύστημα του Shushtar, που είναι εγγεγραμμένο ως αριστούργημα δημιουργικής ιδιοφυΐας, ανήκει στον Μεγάλο Δαρείο και χρονολογείται τον 5ο αιώνα π.Χ.