The Mezha (russian: Межа) is a river in Nelidovsky, Zharkovsky, and

Zapadnodvinsky District Zapadnodvinsky District (russian: Западнодви́нский райо́н) is an administrative and municipalLaw #4-ZO district (raion), one of the thirty-six in Tver Oblast, Russia. It is located in the west of the oblast and borders with ...

s of

Tver Oblast Tver Oblast (russian: Тверска́я о́бласть, ''Tverskaya oblast'', ), from 1935 to 1990 known as Kalinin Oblast (), is a federal subject of Russia (an oblast). Its administrative center is the city of Tver. It was named after Mikhai ...

and

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 ...

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 ...

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 ...

. It flows out of the

Valdai Hills The Valdai Hills (russian: Валда́йская возвы́шенность, Valdáyskaya vozvýshennost'), sometimes referred to as just Valdai (russian: Валда́й, Valdáy), are an upland region in the north-west of central European Ru ...

and continues west into 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 ...

(Western Dvina). The town of Nelidovo and the urban-type settlement of Zharkovsky are located along the Mezha. It is long, and the area of its basin . Its main tributaries are the Bereza, the Luchesa, the

Obsha The Obsha () is a river in Sychyovsky District of Smolensk Oblast and Oleninsky, Belsky, and Zharkovsky Districts of Tver Oblasts, Russia. It is a left tributary of the Mezha (Western Dvina basin). It is long, and the area of its basin . The t ...

, and the Yelsha (all left). The source of the Mezha is in the north-western part of Nelidovsky District, within the

Central Forest Nature Reserve Central Forest Nature Reserve (russian: Центрально-Лесной заповедник) (also, Tsentralno-Lesnoi) is ''zapovednik'' (strict ecological reserve) in the north-west of Russia, located in Andreapolsky and Nelidovsky Districts ...

, a highly protected natural area. It flows south, downstream of the town of Nelidovo turns southwest and crosses into Zharkovsky District. It accepts the Obsha from the left and turns west. Downstream of the urban-type settlement of Zharkovsky it turns northwest. Further downstream, the Mezha flows southwest making the border between Zharkovsky and Zapadnodvinsky Districts, and west making the border between Tver and Smolensk Oblasts. The mouth of the Mezha is the triple point where Tver, Smolensk, and

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, ...

s meet. The drainage basin of the Mezha includes the whole area of Belsky District of Tver Oblast, the major parts of Nelidovsky and Zharkovsky Districts, the western part of

Oleninsky District Oleninsky District (russian: Оле́нинский райо́н) is an administrative and municipalLaw #4-ZO district (raion), one of the thirty-six in Tver Oblast, Russia. It is located in the southwest of the oblast and borders with Selizhar ...

, also of Tver Oblast, and the eastern part of Zapadnodvinsky District, as well as the western part of

Sychyovsky District Sychyovsky District (russian: Сычёвский райо́н) is an administrativeResolution #261 and municipalLaw #106-z district (raion), one of the twenty-five in Smolensk Oblast, Russia. It is located in the northeast of the oblast. The area ...

and northern parts of Kholm-Zhirkovsky, Dukhovshchinsky, Demisovsky, and Velizhsky Districts of Smolensk Oblast.

References

{{reflist Rivers of Tver Oblast Rivers of Smolensk Oblast