Grímsnes

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Grímsnes (Icelandic pronunciation: [ˈkrimsˌnɛːs]) is a relatively small fissure or crater row volcanic system located in South Iceland, located south–east of Lake Thingvallavatn and east of the en echelon group of volcanic systems extending across the Reykjanes Peninsula, that erupted last in the Holocene.

Adapted from Wikipedia (CC BY-SA). Photography via Wikimedia Commons.