pothos.org

http://35.1911encyclopedia.org/F/FI/FIRUZABAD.htmThe river leaves the plain by a narrow gorge at the southern end, and according to Persian history it was there that Alexander the Great, when unable to capture the ancient city, built a dike across the gorge, thus damming up the water of the river and turning the plain into a lake and submerging the city and villages. The lake remained until the beginning of the 3rd century, when Ardashir, the first Sassanian monarch, drained it by destroying the dike. He built a new city, called it G++r, and made it the capital of one of the five great provinces or divisions of Fars. Do you know anything about it?

Hi Cyrus -This capture of Furuzabad is clearly part of Persian history. Is it Firdusi who mentions it? It is definitely not in the Greek/Roman classic western tradition. I can not recall any episode like this from Arrian, Curtius, Diodorus, Plutarch or Justin.Maybe it's in Josephus? Or in some minor source? That I don't know.Regards -
Nick