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Imatra(ĭm`äträ), falls in the Vuoksijoki River, SE Finland, between Lake Saimaa (Finland) and Lake Ladoga (Russia). The river descends 60 ft (18 m) in a series of rapids c. 1-2 mi (.8 km) long. The hydroelectric station there supplies power to all of S Finland. Imatra is a tourist attraction.
a city in southeast Finland, on the Vouksa River, in Kymi Province. Population, 35,000 (1970). The country’s major hydroelectric power plant (155,000 kW) was built in 1929 to use the energy from the Imatra waterfalls. The city has metallurgical and timber-treating industries. Imatra is a health resort and tourist center.
rapids on the Vouksa River in southern Finland, 7 km from where the river flows out of Lake Saimaa, where it crosses the Salpausselkä Ridge. The water falls 18.4 m over a distance of 1.5 km. The rate of discharge is 475–620 m3/sec. The river at this point is 23–50 m wide. Much of the water in the rapids is diverted to a hydroelectric power plant near the city of Imatra. There is tourism.