What is "transvolga"

Transvolga Region or Transvolga (, Zavolzhye) is a territory to the East of Volga River bounded by Volga, Ural Mountains, Northern Ridge, and Caspian Depression.

The region is traditionally subdivided into the elevated High Transvolga in the East and the lowland Low Transvolga by the left bank of Volga between Kazan and Kamyshin.

The region includes Volga-Ural petroleum and gas province.

Kuybyshev Reservoir is within the Low Transvolga.