Kirkjufell

Kirkjufell (Icelandic: , "Church Mountain") is a 463 m high mountain on the north coast of Iceland's Snæfellsnes peninsula, near the town of Grundarfjörður. It is claimed to be the most photographed mountain in the country. Kirkjufell was one of the filming locations for "Game of Thrones" season 6 and 7, featuring as the "arrowhead mountain" that the Hound and the company north of the Wall see when capturing a white walker.
Kirkjufell contains volcanic rock, but is not a volcano. It is a former nunatak, a mountain that protruded above the glaciers surrounding it during the Ice Age, and before that was part of what was once the area's strata. This strata is composed of alternating layers of Pleistocene lava and sandstone, with tuff at its summit.