Global Volcanism Program | Image GVP-12067
The Hengill central volcano in the right background rises above Thingvallavatn lake as seen from Thingvellir, the historical site of the Icelandic parliament. Steam clouds rise from the Nesjavellir geothermal area in this view from the northeast. Graben structures in the foreground cut the Thingvallahraun lava flow in the foreground, which was erupted about 10,000 years ago. The cone in the lake on the left is Sandey, a tuff ring formed in a phreatomagmatic eruption about 1,900 years ago.
Photo by Lee Siebert, 2008 (Smithsonian Institution).
This image is made available under the Public Domain Dedication CC0 license, but proper attribution is appreciated.