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Iconic mountain and its many moods.
The handsome Hlíðarfjall is part of the Krafla volcanic system in the Mývatn area of north Iceland. This “rhyolite lava dome” was “formed in sub-glacial eruptions some 20000-30000 years ago” (vide Iceland by Thor Thordarson and Armann Hoskuldsson, Classic Geology in Europe series, Terra Publishing, 2002).