Kverkfjöll, seen here from the north, is a subglacial volcano at the northern end of the Vatnajökull icecap, west of Bárdarbunga. The Dyngjujökull glacier, an outflow sheet of the Vatnajökull icecap, appears in the foreground during a 1977 glacial surge. The dark ridge on the left, seen here separated from the outflow sheet by a stream, is a lava flow from about 4,500 to 6,100 years ago.

Photo by Oddur Sigurdsson, 1977 (Icelandic National Energy Authority).

This image is made available under the Creative Commons BY-NC 4.0 license terms.

Kverkfjöll