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The Dez River (Persian: دز‎), the ancient Coprates[1] (Greek: Κοπράτης or Κοπράτας), is a tributary of the Karun River and is 400 km long. It is the site of the Dez Dam.

Dez Dam.jpg
Dez River Dam
Physical characteristics
 ⁃ locationDezful
 ⁃ location
Karun River

It is believed that a fortress protected a strategic bridge across the river at Dezful, whence the name, although no trace of this castle remains. The old part of the city adjacent to the bridge is known as عہ; or the Qaleh (castle) in Dezful. Dez River side resort is located in a part called " Alikaleh" in Dezful, that During the summer, people come from all over the Khuzestan province, where they are swimming in the cool water.

Aerial view of the Dez Reservoir, Dezful, Khuzestan.


  1. ^ Edward Anson, Eumenes of Cardia: A Greek among Macedonians (Brill Academic Publishers, 2004), p. 166.

Coordinates: 32°54′05″N 48°43′52″E / 32.9014°N 48.7311°E / 32.9014; 48.7311