Tver Oblast, also known as Verkhnevolzhye is a federal subject of Russia. Its administrative center is the city of Tver. From 1935 to 1990, it was known as Kalinin Oblast. Population: 1,353,392.
Zubtsov is a town and the administrative center of Zubtsovsky District in Tver Oblast, Russia, located at the confluence of the Volga and Vazuza Rivers, 153 kilometers south of Tver, the administrativ