Organisation: Tver region
Numéro fiscal 6901001459, PSRN 1026900508557

Tver Oblast is a federal subject of Russia (an oblast). Its administrative center is the city of Tver. From 1935 to 1990, it was known as Kalinin Oblast, named after Mikhail Kalinin. Population: 1,353,392 (2010 Census). Tver Oblast is a region of lakes, such as Seliger and Brosno. Much of the remaining area is occupied by the Valdai Hills, where the Volga, the Western Dvina, and the Dnieper have their source. Tver Oblast is one of the tourist regions of Russia with a modern tourist infrastructure. There are also many historic towns: Torzhok, Toropets, Zubtsov, Kashin, Vyshny Volochyok, and Kalyazin. The oldest of these is Rzhev, primarily known for the Battles of Rzhev in World War II. Staritsa was a seat of the last appanage principality in Russia. Ostashkov is a major tourist center.