The Northern Dvina is a major river in northwestern Russia, flowing approximately 744 kilometers (462 miles) from the Vologda Oblast to the White Sea. It is formed by the confluence of the Sukhona and Yug rivers and serves as an important waterway for transportation and trade in the region. The river's basin is rich in biodiversity and supports various ecosystems. The Northern Dvina is also significant for its historical role in connecting inland areas to the sea, facilitating commerce and cultural exchange since ancient times.