Bolshoy Irgiz River

The Bolshoy Irgiz (Russian: Большой Ирги́з, literally Great Irgiz) or Irgiz (Ирги́з) is a river in Samara and Saratov Oblast, Russia, the left tributary of the Volga River, south of the Samara River. It is 675 km (419 mi) long and the area of its drainage basin is 24,000 km² (9,266 sq mi). It headwaters are at the Obshchy Syrt adjoining the Ural River basin. It flows west and joins the Volga south of Samara. Irgiz's meandering riverbed passes the steppes. The river has snow feeding. The town of Pugachyov is located along the Irgiz. The river flows to the Volgograd Reservoir of the Volga downstream Balakovo, near Volsk.

Volga River
Tributaries	Selizharovka Vazuza Tvertsa Shosha Dubna Medveditsa Nerl Kashinka Sit Mologa Suda Sheksna Sogozha Kotorosl Kostroma Nyomda Unzha Uzola Oka Kudma Kerzhenets Sura Vetluga Rutka Tsivil Great Kokshaga Little Kokshaga Anish Ilet Sviyaga Sumka Kazanka Kama Aktay Bezdna Cheremshan Sok Samara Chapayevka Little Irgiz Irgiz Tereshka Yeruslan Akhtuba (distributary)
Reservoirs	Lake Volgo Ivankovo Uglich Rybinsk Gorky Cheboksary Kuybyshev Saratov Volgograd
Hydroelectric stations	Ivankovo Uglich Rybinsk Nizhny Novgorod Cheboksary Zhiguli Saratov Volga
Canals	Moscow Canal Volga–Baltic Waterway Volga–Don Canal
Cities	Astrakhan Volgograd Saratov Samara Kazan Ulyanovsk Nizhny Novgorod Yaroslavl Tver

Coordinates: 51°59′07″N 47°31′01″E / 51.98528°N 47.51694°E / 51.98528; 47.51694