Also called Western Dvina.Latvian, Daugava.a river rising in the Valdai Hills in the W Russian Federation, flowing W through Byelorussia (Belarus) and Latvia to the Baltic Sea at Riga. about 640 miles (1030) long.
2.
Also called Northern Dvina.a river in the N Russian Federation in Europe, flowing NW into the White Sea. about 470 miles (750 km) long.
Northern Dvina Russian name: Severnaya Dvina a river in NW Russia, formed by the confluence of the Sukhona and Yug Rivers and flowing northwest to Dvina Bay in the White Sea. Length: 750 km (466 miles)
2.
Western Dvina Russian name: Zapadnaya Dvina, Latvian name: Daugava a river rising in W Russia, in the Valdai Hills and flowing south and southwest then northwest to the Gulf of Riga. Length: 1021 km (634 miles)