Bolshoy Uzen River

Bolshoy Uzen (Russian: Большой Узень) is a river in Saratov Oblast of Russia and West Kazakhstan Province of Kazakhstan. It is 650 km in length, with a drainage basin of 15 600 km².

The Bolshoy Uzen has its sources on the western edge of the Obshchy Syrt highlands of Russia, and flows in a generally southerly direction over the steppes of the Caspian Depression. It terminates in West-Kazakhstan, in a network of small lakes and swamps called the Kamysh-Samarskiye Lakes. The Bolshoy Uzen runs parallel to the Maly Uzen River, some 50 km further west.

Most of the river's waters comes from snowmelt, so the river's flow peaks in April, while in the summer parts of the river will dry up completely. At Novouzensk the discharge varies from 7.3 m³/s to 393 m³/s. The river freezes over in December, and stays icebound to the end of March - beginning of April.

The town of Novouzensk is situated at the Bolshoy Uzen. The river is used for water supply and irrigation.

Rivers
Ajaguz River  • Akan-Burluk River  • Arys River  • Asa River  • Aschiagar River  • Ayat River  • Badam River  • Bolshoy Uzen River  • Borolday River  • Bugun River  • Bukhtarma River  • Byan River  • Charyn River  • Chu River  • Emba River  • Ilek River  • Iman-Burluk River  • Irgiz River  • Ili River  • Irtysh River  • Ishim River  • Kapal River  • Karatal River  • Kigach River  • Keles River  • Koksu River  • Koluton River  • Kurchum River  • Lukina River  • Narym River  • Nura River  • O River  • Sarisu River  • Sytasty River  • Syr Darya  • Talas River  • Tersakkan River  • Tobol River  • Tuolba River  • Turgai River  • Ural River  • Uba River  • Ubagan River  • Ulba River