Ostyor River

Coordinates: 53°47′49″N 31°45′38″E / 53.79694°N 31.76056°E / 53.79694; 31.76056

Ostyor
Ostyor River (1885), painting by Nikolay Atryganev
Native name Russian: Остёр
Country Russia, Belarus
Physical characteristics
River mouth Sozh
Length 274 km (170 mi)[1]
Discharge
  • Average rate:
    20.8 m3/s (730 cu ft/s)[1]
Basin features
Basin size 3,490 km2 (1,350 sq mi)[1]

The Ostyor (Russian: Остёр), or Ascior[2] (Belarusian: Асцёр) is a river in Pochinkovsky, Roslavlsky, and Shumyachsky Districts of Smolensk Oblast in Russia and in Klimavichy and Krychaw Districts of Mogilev Region of Belarus. It is a left tributary of the Sozh River. It is 274 kilometres (170 mi) long, and the area of its basin 3,490 square kilometres (1,350 sq mi).[1] The town of Roslavl is located on the left bank of the Ostyor. The lower course of the Ostyor makes the state border between Russia and Belarus.

The source of the Ostyor is in the east of Pochinkovsky District, in the Smolensk Upland. The river flows south, accepts the Ostrik River from the right, turns west and passes Roslavl. There, the Ostyor turns northwest. At the border of the district, it turns west, a stretch of Ostyor makes the border between Roslavlsky and Pochinskovsky Districts. Downstream, it turns south and makes the border between Roslavlsky and Shumyachsky Districts. Close to the village of Samolyubovo it departs from the border, turns west, flows north of the urban-type settlement of Shumyachi, turns southwest and accepts the Nemka River from the right. It crosses Shumyachsky District, and at the state border between Russia and Belarus turns west and follows the border. The mouth of the Ostyor is close to the village of Kholmy.

The drainage basin of the Ostyor includes the southern part of Pochinkovsky District, the western part of Roslavlsky District, the central part of Shumyachsky District, minor areas in the east of Khislavichsky District, as well as parts of Klimavichy and Krychaw Districts.

References

  1. 1 2 3 4 "Научно-популярная энциклопедия «Вода России»" Check |url= value (help) (in Russian). Retrieved 26 December 2017.
  2. ↑ official transliteration

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