Lake Kovzhskoye Lake Kovzhskoye Lake Kovzhskoye () is a freshwater lake, located in the center of Vytegorsky District of Vologda Oblast in Russia. It is one of the biggest lakes in Vologda Oblast and the second biggest one in Vytegorsky District behind Lake Onega. The area of the lake is , and the area of its basin is . The main tributary of the lake is the Iles River. Lake Kovzhskoye is the source of Kovzha River, one of the principal tributaries of Lake Beloye. The lake belongs to the basins of the Volga and the Caspian Sea. The lake has a
Onega River of the Onega is notable for the rapids, spread everywhere between Kargopol and Gorodok, and also located downstream from Porog (the name "Porog" means "a rapid"). The Onega basin area has an important historical and cultural significance. Kargopol is one of the oldest cities in Russian North (the traditional foundation date in the 12th century, first mentioned in the 14th century), and it still contains a big number of architectural and historical monuments. Oshevensk on the left bank of the Onega is the location of the former Alexandro-Oshevensky Monastery. Another historically important monastery in the Onega basin is the Kozheozersky