Jökulsá

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Jökulsá

(yö`külsou), name of several Icelandic rivers formed by glaciers. The best known is the Jökulsá á Fjöllum, which rises on the north slope of the VatnajökullVatnajökull
, glacier, c.3,150 sq mi (8,160 sq km), SE Iceland; largest glacier in Europe. At an elevation of from 4,200 to 6,100 ft (1,280–1,860 m), it covers a huge volcanic plateau, which includes the Grímsvötn caldera, Iceland's third largest and
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 in SE Iceland and flows c.130 mi (210 km) N into the Öxarfjörður bay, forming the Dettifoss, one of four waterfalls on the river and one of Europe's most powerful waterfalls, c.30 mi (50 km) from its mouth; below the falls, the falls the river flows through the Jökulsárgljúfur, a canyon that is 390 ft (120 m) deep in places.
References in periodicals archive ?
It will dam two major glacial rivers, Jokulsa a Dal and Jokulsa i Fljotsdal, both to service an aluminum smelter being built by Alcoa that will double the country's energy use in metals industries.
The Jokulsa canyon, up to 100m deep, is the stunning centrepiece of the Jokulsargljufur national park (no, I couldn't pronounce it either).