Dez River

"Coprates" redirects here. For the valley on Mars, see Coprates Chasma.

The Dez (Persian: دز), the ancient Coprates^[1] (/ˈkɒprətiːz/;^[2] Greek: Κοπράτης or Κοπράτας), is a river in Iran. This 400 km long river is a tributary of the Karun River. It is the site of the Dez Dam.

Aerial view of the Dez Reservoir, in the area of Andimeshk, Khuzestan

Dez
Dez Dam in Dezful city
The basin of Dez River, as a tributary of Karun River
Location
Country	Iran
Physical characteristics
Mouth
• location	Karun River
Length	400 km (250 mi)