Eldgjá

The volcanic canyon Eldgjá is the largest volcanic canyon in the world, 270m deep and 600m wide at its greatest.

It was discovered in 1803 by Þorvaldur Thoroddsen and the first documented eruption in 934 was the largest flood basalt in historic time. An estimated 18m3 of lava poured out of the earth. Situated between Landmannalaugar and Kirkjubæjarklaustur, Eldgjá is the largest volcanic canyon in the world, approx. 40 km long, 270 m deep and 600 m wide at its greatest. The first documented eruption in 934 (or 939) was the largest flood basalt in historic time. The areal extent of the lava is around 800 km2. An estimated 18 km3 of magma poured out of the earth.

There is a waterfall named Ófærufoss within the canyon. A natural bridge across the waterfall vanished in 1993 due to excess water from melting ice. The name Eldgjá translates as Fire Canyon in english.