Bezdna River, Tatarstan

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Not to be confused with Bezdna River, Chuvashia.
Bezdna, Biznä River
Mouth Kuralovo, Spassky District
Basin countries Tatarstan, Russia
Length 45 km
Mouth elevation 53
Avg. discharge 197
Basin area 806 km²

The Bezdna (Russian: Бездна) or Biznä (Tatar Cyrillic: Бизнә, Latin: Biznä) is a river in Tatarstan, Russian Federation, a left-bank tributary of the Volga River, falling into the Kuybyshev Reservoir near Kuralovo, Spassky District. Its length is 45 km and its drainage basin is 806 km².

The maximal mineralization 300-500 mg/l. Average sediment in mouth per year is 129 mm. In 1963 average discharge was 197 m3/s.[1] The town of Spassk, the ancestor of modern Bolgar stood on the river prior to 1956. In 1956-57 the Kuybyshev reservoir was created, flooding the town and the lower stream of Bezdna.


  1. ^ (Tatar) "Бизнә". Tatar Encyclopaedia. Kazan: The Republic of Tatarstan Academy of Sciences. Institution of the Tatar Encyclopaedia. 2002.