Alatyr (river)

Alatyr
Alatyr River, view from the railway bridge at Alatyr train station
Location of mouth
Native nameАлатырь (Russian)
Location
CountryRussia
Physical characteristics
Source 
  coordinates54°47′31″N 45°06′50″E / 54.792°N 45.114°E / 54.792; 45.114
MouthSura
  coordinates
54°52′10″N 46°35′55″E / 54.8694°N 46.5985°E / 54.8694; 46.5985
Length296 km (184 mi)
Basin size11,200 km2 (4,300 sq mi)
Basin features
ProgressionSuraVolgaCaspian Sea
Tributaries 
  rightInsar

The Alatyr (Russian: Алатырь, IPA: [ɐˈɫatɨrʲ]) is a river in Mordovia, Russia, and it is the left tributary of the river Sura. It is 296 kilometres (184 mi) long, and has a drainage basin of 11,200 square kilometres (4,300 sq mi). The Alatyr freezes up in November and stays icebound until April. The towns of Ardatov and Alatyr (Erzya: Ратор, Rator), are located on the Alatyr River.