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
Arkhangelsk serves as the administrative center of Primorsky District, even though it is not a part of it. As an administrative division, it is, together with five rural localities, incorporated separately as the city of oblast significance of Arkhangelsk—an administrative unit with the status equal to that of the districts. As a municipal division, the city of oblast significance of Arkhangelsk is incorporated as Arkhangelsk Urban Okrug. The mayor (as of July 2017) is Igor Viktorovich Godzish, who was elected in 2015. For administrative purposes, the city is divided into nine territorial okrugs: Nordavia (formerly Aeroflot Nord) airline has its head