Onega River Onega River The Onega (; ) is a river in Kargopolsky, Plesetsky, and Onezhsky Districts of Arkhangelsk Oblast in Russia. The Onega connects Lake Lacha with the Onega Bay in the White Sea southwest of Arkhangelsk, flowing in the northern direction. The discharge at the source is and at the mouth is . The river is long, and the area of its basin . Its main tributaries are the Voloshka (right), the Kena (left), the Mosha (right), the Kodina (right), and the Kozha (left). The major tributary of the Lake Lacha is the Svid. The name of the river is
Lake Lacha it includes two of the biggest lakes of Arkhangelsk and Vologda Oblasts, Lake Vozhe and Lake Lyokshmozero. The southern part of the Kenozersky National Park also drains into Lake Lacha. The stretch between Kargopol and the lake is navigable, however, neither the Svid River upstream from the lake nor the Onega River downstream are navigable because of the rapids. There are occasional recreational boat trips from Kargopol to the lake but no passenger or cargo navigation. Several villages are located on or close to the banks, including Morshchikhinskaya, Tobolkino, and Filosofskaya. The latter pair are located on the road connecting