The Usvyacha (russian: Усвяча) is a river in Kunyinsky and

Usvyatsky District Usvyatsky District (russian: Усвя́тский райо́н) is an administrativeLaw #833-oz and municipalLaw #420-oz district (raion), one of the twenty-four in Pskov Oblast, Russia. It is located in the south of the oblast and borders with Ve ...

s of

Pskov Oblast Pskov Oblast (russian: Пско́вская о́бласть, ') is a federal subjects of Russia, federal subject of Russia (an oblast), located in the west of the country. Its administrative center is the types of inhabited localities in Russia, ...

Russia Russia (, , ), or the Russian Federation, is a List of transcontinental countries, transcontinental country spanning Eastern Europe and North Asia, Northern Asia. It is the List of countries and dependencies by area, largest country in the ...

and in Vitebsk Raion of

Vitebsk Region Vitebsk Region or Vitebsk Oblast or Viciebsk Voblasts ( be, Ві́цебская во́бласць, ''Viciebskaja voblasć'', ; rus, Ви́тебская о́бласть, Vitebskaya oblast, ˈvʲitʲɪpskəjə ˈobləsʲtʲ) is a region (oblast ...

Belarus Belarus,, , ; alternatively and formerly known as Byelorussia (from Russian ). officially the Republic of Belarus,; rus, Республика Беларусь, Respublika Belarus. is a landlocked country in Eastern Europe. It is bordered by R ...

. It is a right

tributary A tributary, or affluent, is a stream or river that flows into a larger stream or main stem (or parent) river or a lake. A tributary does not flow directly into a sea or ocean. Tributaries and the main stem river drain the surrounding drainage ...

of the

Daugava , be, Заходняя Дзвіна (), liv, Vēna, et, Väina, german: Düna , image = Fluss-lv-Düna.png , image_caption = The drainage basin of the Daugava , source1_location = Valdai Hills, Russia , mouth_location = Gulf of Riga, Baltic Se ...

(the Western Dvina). It is long, and the area of its basin . The source of the Usvyacha is located in the southern part of Kunyinsky District. Usvyacha flows to the north, through Lake Usmynskoye and

Lake Ozeron A lake is an area filled with water, localized in a basin, surrounded by land, and distinct from any river or other outlet that serves to feed or drain the lake. Lakes lie on land and are not part of the ocean, although, like the much larger ...

. North of Lake Ozeron, it turns west and flows into Lake Ordosno. This lake is located at the border between Kunyinsky and Usvyatsky Districts. Usvyacha flows out of the lake in the southern direction and enters

Lake Usvyaty Lake Usvyaty is a lake in the Usvyatsky volost of the Ussvyaty Rayon of the Pskov Oblast. It has a water surface of 6.99 km² (699.0 ha) and a total surface, including islands of 7.03 km² (703.0 ha). The maximum depth is 3.6 m, the a ...

. The urban-type settlement of Usvyaty is located at the right bank of the Usvyacha north of the lake. South of Lake Usvyaty, the Usvyacha accepts the Ovsyanka from the right and crosses into Belarus. Its mouth is located upstream of the urban-type settlement of Surazh. The

drainage basin A drainage basin is an area of land where all flowing surface water converges to a single point, such as a river mouth, or flows into another body of water, such as a lake or ocean. A basin is separated from adjacent basins by a perimeter, t ...

of the Usvyacha includes the center and the southeast of Usvyachsky District, the southwest of Kunyinsky District, the northwest of

Velizhsky District Velizhsky District (russian: Ве́лижский райо́н) is an administrativeResolution #261 and municipalLaw #88-z district (raion), one of the twenty-five in Smolensk Oblast, Russia. It is located in the northwest of the oblast and borders ...

Smolensk Oblast Smolensk Oblast (russian: Смоле́нская о́бласть, ''Smolenskaya oblast''; informal name — ''Smolenschina'' (russian: Смоле́нщина)) is a federal subject of Russia (an oblast). Its administrative centre is the city of ...

, as well as the northwest of Vitebsk Raion.

References

{{Reflist Rivers of Pskov Oblast Rivers of Vitebsk Region Rivers of Belarus