
The Angara is navigable between Irkutsk and Bratsk; below Bratsk there are many rapids. At Bratsk is a large dam with one of the world's largest hydroelectric power plants (c.4.5 million kW); a smaller hydroelectric station is at Irkutsk. Two other dams span the river, making it one of the world's greatest sources of hydroelectric power. Iron, coal, and gold deposits are found in the Angara basin, and aluminum and pulp are processed.
The Upper Angara River (Rus. Verkhnyaya Angara), c.200 mi (320 km) long, rises NE of Lake Baykal and flows SW through the Buryat Republic into the lake; it is partly navigable.