Ångermanälven(ông`ərmänĕl'vən), river, c.280 mi (450 km) long, rising in Västerbotten prov., W central Sweden, and flowing generally southeast through narrow lakes and past Sollefteå and Kramfors to the Gulf of Bothnia at Härnösand. The Faxeälven is its chief tributary. There are numerous hydroelectric power plants on the river. The Sandö Bridge (866 ft/264 m long; opened 1943), the largest concrete-arch bridge when it opened, spans the river.
a river in Sweden, with sources in Norway. Length, 450 km; drains an area of approximately 32,000 sq km. The Ångermanälven flows mainly in a deep forested valley, crosses a number of lakes, and empties into the Gulf of Bothnia in the Baltic Sea. There are rapids and waterfalls. The average flow rate at the mouth is 490 cu m per sec, with a maximum of more than 3,000 cu m per sec. It is fed by snow and water. The high-water period is from May through July. It freezes for six to seven months. On the river and its tributaries there are hydroelectric power plants. The river is used for floating timber. The city of Kramfors, with lumber and pulp enterprises, is situated near the river’s mouth.