Onega River traversed by ferry crossings. 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
Republic of Karelia of high-quality fresh water. Lake Ladoga (Finnish: "Laatokka") and Lake Onega ("Ääninen") are the largest lakes in Europe. Other lakes include: The lakes Ladoga and Onega are located in the south of the republic. White Sea coast: In Lake Onega: In Lake Ladoga: The majority of the republic's territory (148,000 km², or 85%) is composed of state forest stock. The total growing stock of timber resources in the forests of all categories and ages is 807 million m³. The mature and over-mature tree stock amounts to 411.8 million m³, of which 375.2 million m³ is coniferous. Fifty useful minerals are