The Diyala River is a river and tributary of the Tigris that runs through Iran and Iraq. It covers a total distance of 445 km (275 miles).
It rises near Hamadan, in the Zagros Mountains of Iran, where it is known as the Sirvan. It then descends through the mountains, where for some 32 km it forms the international border between the two countries. It finally feeds into the Tigris below Baghdad.
Navigation along the upper reaches of the Diyala is not possible because of its narrow defiles, but the river's valley provides an important trade route between Iran and Iraq.
The river is controlled by a dam on the lower Diyala valley, which controls floods and irrigates the area northeast of Baghdad.
Diyala is one of the constituent governorates of the nation of Iraq.
A large portion of the province is drained by the DiyalaRiver, a major tributary of the Tigris.
Baquba one of the major cities in Iraq which is centrally located in the province, roughly 25 kilometers East of the Tigris River and divided in half by the DiyalaRiver.
The DiyalaRiver is a river and tributary of the Tigris that runs through Iran and Iraq.
Navigation along the upper reaches of the Diyala is not possible because of its narrow defiles, but the river's valley provides an important trade route between Iran and Iraq.
The river is controlled by a dam on the lower Diyala valley, which controls floods and irrigates the area northeast of Baghdad.