Sura (river)

The Sura (Russian: Сура́, Chuvash: Сăр, Săr) is a river in Russia, a north-flowing right tributary of the Volga. Its mouth on the Volga is about halfway between Nizhny Novgorod and Kazan. It flows through Penza Oblast, Mordovia, Ulyanovsk Oblast, Chuvashia and Nizhny Novgorod Oblast. It is 841 kilometres (523 mi) long, and has a drainage basin of 67,500 square kilometres (26,100 sq mi).^[1] It is navigable for 394 km from the mouth.^[2]

Sura
The Sura in Penza
Map of the Sura River watershed
Location
Country	Russia
Physical characteristics
Source
• elevation	301 m (988 ft)
Mouth
• location	Cheboksary Reservoir
• coordinates	56°07′21″N 45°58′16″E / 56.12250°N 45.97111°E / 56.12250; 45.97111
• elevation	60 m (200 ft)
Length	841 km (523 mi)
Basin size	67,500 km2 (26,100 sq mi)
Discharge
• average	260 m3/s (9,200 cu ft/s)
Basin features
Progression	Cheboksary Reservoir→ Volga→ Caspian Sea
Tributaries
• left	Kadada, Uza, Alatyr, Pyana
• right	Inza, Barysh, Bezdna

The city of Penza, and smaller towns Alatyr, Shumerlya, Yadrin lie along the Sura. At the confluence with the Volga there is a settlement of Vasilsursk.

The principal affluents of the Sura are the Penza, the Pyana, and the Alatyr.