The Usvyacha (russian: Усвяча) is a river in
Kunyinsky and
Usvyatsky Districts of
Pskov Oblast
Pskov Oblast (russian: Пско́вская о́бласть, ') is a federal subject of Russia (an oblast), located in the west of the country. Its administrative center is the city of Pskov. As of the 2010 Census, its population was 67 ...
in
Russia
Russia (, , ), or the Russian Federation, is a transcontinental country spanning Eastern Europe and Northern Asia. It is the largest country in the world, with its internationally recognised territory covering , and encompassing one-eigh ...
and in
Vitebsk Raion
Vitebsk District ( be, Віцебскі раён, russian: Витебский район, Vitebsk Raion) is a district of Belarus in Vitebsk Region.
The administrative center of the district is the city of Vitebsk, administratively separated from ...
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 ( oblas ...
in
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 ...
. 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 drainag ...
of the
Daugava
The Daugava ( ltg, Daugova; german: Düna) or Western Dvina (russian: Западная Двина, translit=Západnaya Dviná; be, Заходняя Дзвіна; et, Väina; fi, Väinäjoki) is a large river rising in the Valdai Hills of Russ ...
(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
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 large ...
and
Lake Ozeron. North of Lake Ozeron, it turns west and flows into
Lake Ordosno
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 ...
. 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. 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, ...
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 border ...
of
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 ...
, as well as the northwest of Vitebsk Raion.
References
{{Reflist
Rivers of Pskov Oblast
Rivers of Vitebsk Region
Rivers of Belarus