The Tsna () is a river in Kuvshinovsky, Ostashkovsky, Firovsky, and

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

s of Tver Oblast of Russia. It flows into Lake Mstino, which is drained by the Msta and belongs to the drainage basin of the Neva and the Baltic Sea. It is long, and the area of its basin . The principal tributaries of the Tsna are the Belaya (right) and the

Shlina The Shlina () is a river in Firovsky District, Firovsky, Bologovsky District, Bologovsky, and Vyshnevolotsky Districts, as well as of the closed urban-type settlement of Ozyorny, Tver Oblast, Ozyorny of Tver Oblast of Russia. It is a tributary of t ...

, that flows into the .«Река Шлина»
Russian State Water Registry In 1719, the river was dammed some 10 km above its mouth, creating the Vyshny Volochyok Reservoir. The source of the Tsna is located close to the

drainage divide A drainage divide, water divide, ridgeline, watershed, water parting or height of land is elevated terrain that separates neighboring drainage basins. On rugged land, the divide lies along topographical ridges, and may be in the form of a singl ...

between Neva and Volga ( Caspian Sea) drainage basins, and Tsna used to be an important trade route in the Middle Ages. The town of Vyshny Volochyok and the urban-type settlement of

Velikooktyabrsky Velikooktyabrsky (russian: Великооктя́брьский) is an urban-type settlement in Firovsky District of Tver Oblast, Russia. It is located on the left bank of the Tsna River. Population: History Velikooktyabrsky was founded in 1832 ...

are located on the banks of the Tsna. The source of the Tsna is located in the Valdai Hills, in Kuvshinovsky District south of the village of

Konakovo Konakovo ( rus, Конако́во, p=kənɐˈkovə) is a town and the administrative center of Konakovsky District in Tver Oblast, Russia, located on the right bank of Ivankovo Reservoir (Volga River). Population: History Konakovo was founde ...

. It flows south and southeast, and in the village of

Mogilyovka Mogilyovka (russian: Могилёвка) is a rural locality (a selo) in Gribovsky Selsoviet of Arkharinsky District, Amur Oblast, Russia. The population was 66 as of 2018. There are 3 streets. Geography Mogilyovka is located on the left bank ...

turns north. A stretch of the Tsna forms a border between Kuvshinovsky and Ostashkovsky Districts, and a short stretch north of the first one forms the border between Kuvshinovsky and Firovsky Districts. North of this stretch, the Tsna enters Firovsky District and gradually turns northeast. Downstream of the village of Kuznetsovo the Tsna enters Vyshnevolotsky District. Its mouth is by the village of Nikiforovo, where the Tsna joins the Vyshny Volochyok Reservoir. The natural course of the Tsna proceeds to Lake Mstino, which is connected with the reservoir by a canal, however, currently the Vyshny Volochyok Reservoir regulates the discharge between the drainage basins of the Volga (via the

Tvertsa The Tvertsa () is a river in Vyshnevolotsky, Spirovsky, Torzhoksky, and Kalininsky Districts, as well as in the cities of Torzhok and Tver in Tver Oblast, Russia, a left tributary of the Volga. It is long, and the area of its basin . The princ ...

) and the Neva (via the Msta, which flows out of Lake Mstino). The drainage basin of the Tsna includes the western part of Vyshnevolotsky District, the southern part of Firovsky District, and the northwestern part of Kuvshinovsky District, as well as minor areas in the east of Ostashkovsky District. Historically, the Tsna was one of the most important waterways in medieval Russia, providing a connection from the Baltic Sea basin into the Caspian Sea basin via the

. In the beginning of the 18th century the portage located in Vyshny Volochyok was replaced by a system of canals, Vyshny Volochyok Waterway.

References

{{DEFAULTSORT:Tsna River (Tver Oblast) Rivers of Tver Oblast