Dez:

in greek language dez means gepratas. now becouse it passing near dez castle call it dez. dez begin from arak &aligodarz. most of the way dez goes through the big mountains &at last after it graft to karoon at a place call band ghir or vannikan. dez has 515 km long. in different places dez has different names like aligodarz, marbareh,tireh &sezar.

dez goes through these cities dezful alak shoushtar.some years a go goverments build a big dam on it for farmers.