The wetland was supplied by water from the Karkheh river and its tributaries and is a major habitat for native fish and buffalos and a place where many local villagers earn a living.
The Hour-ol-Azim Wetland is the last survivor of the Mesopotamian Marshes in the southwestern Iranian province of Khuzestan.
A third of the Hour-ol-Azim Wetland is located in Iran and two-thirds of it lie in Iraq.
Now, drought is gradually sounding the death knell for the wildlife in the marshland.