Bezdna_(Chuvashia)
Bezdna (Chuvashia)
River in Chuvashia, Russia
The Bezdna (Russian: Бездна) or Pasna (Chuvash: Пасна) is a river in Chuvashia, Russian Federation, a right-bank tributary of the Sura. It is 106 kilometres (66 mi) long, and has a drainage basin of 1,320 square kilometres (510 sq mi).[1]
Major tributaries are Abamza, Orbezdna, Black Bezdna. The maximal mineralization 500-700 mg/L. Average sediment in mouth per year is 71 mm. Drainage is regulated. In the upper stream use to dry.