Vazuza River

Vazuza River
The Vazuza near Zubtsov
Native name	Вазуза
Country	Russia
Basin features
River mouth	Volga River
Basin size	7,120 km2 (2,750 sq mi)
Physical characteristics
Length	162 kilometres (101 mi)

Coordinates: 56°10′05″N 34°35′27″E / 56.1681°N 34.5908°E / 56.1681; 34.5908

The Vazuza (Russian: Вазу́за) is a river in Novoduginsky and Sychyovsky districts of Smolensk Oblast and Zubtsovsky District of Tver Oblast, Russia, a tributary of the Volga River. It is 162 kilometres (101 mi) long, and its drainage basin covers 7,120 square kilometres (2,750 sq mi). The lower part of the river has been transformed into Vazuza Reservoir. The towns of Sychyovka and Zubtsov are located on the banks the Vazuza (the latter at its confluence with the Volga). The main tributaries of the Vazuza are the Kasnya River, the Gzhat River (both right), and the Osuga River (left).

The source of the Vazuza is located east of the village of Lukino in Novoduginsky District. The river flows north, crosses into Sychyovsky District, and downstream of the town of Sychyovka turns east. Several kilometers downstream of Sychyovka the reservoir begins, and all major tributaries of the Vazuza form bays in the reservoir. The Vazuza accepts the Kasnya from the right and turns northeast. Downstream of the mouth of the Gzhat it makes a short stretch of a border between Tver and Smolensk Oblasts, flowing northwest, and further downstream turns northeast and deviates from the border into Tver Oblast. The damb of the reservoirs is located several kilometers upstream from the mouth of the Vazuza and several kilometers downstream from the mouth of the Osuga.