Sunzha

The Sunzha runs from near Vladikavkaz to near the point where the Terek turns north, cutting off the great bend of the Terek

The Sunzha (Russian: Сунжа, IPA: [ˈsunʐə]; Chechen: Соьлжа, romanized: Sölƶa, IPA: [ˈsᶣølʒə]; Ingush: Шолжа, romanized: Şolƶa, IPA: [ˈʃʷɔɫʒə]) is a river in North Ossetia, Ingushetia and Chechnya, Russia, a tributary of the Terek. It flows northeast inside the great northwest bend of the Terek River and catches most of the rivers that flow north from the mountains before they reach the Terek. It is 278 kilometres (173 mi) long, and has a drainage basin of 12,000 square kilometres (4,600 sq mi). The Sunzha rises on the Northern slope of the Caucasus Major. Its major tributaries are the Assa and Argun. With a turbidity of 3,800 grams per cubic metre (6.4 lb/cu yd), it carries 12.2 million tons of alluvium per year. It is used for irrigation. Cities that lie on the Sunzha include Nazran, Karabulak, Grozny (the capital of Chechnya), and Gudermes. During the First and Second Chechen Wars, the destruction of petroleum reservoirs caused the Sunzha to become polluted with petroleum.