Gorkovsky Reservoir on the Volga River, Russia57.0N 43.1E
The reservoir was formed by a hydroelectric dam of the Gorky Hydroelectric Station (now called Nizhny Novgorod Hydroelectric Station), built between the towns of Gorodets and Zavolzhye.
It spans for 430 km from the dam of Rybinsk to the dam of Gorodets through Yaroslavl, Kostroma, Ivanovo and Nizhny Novgorod oblasts of Russia. While it is relatively narrow and follows the natural riverbed of Volga in the upper part, it becomes up to 16 km wide downstream the town of Yuryevets.
The reservoir takes its name from the former name of the city of Nizhny Novgorod (actually situated some fifty kilometers downstream the dam), Gorky. An industrial town of Zavolzhye was built on the right bank of the Volga along with the construction of the dam.