Grímsvötn
Grímsvötn,
volcano, Iceland: see 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
..... Click the link for more information. .