Paul D Stewart / Lower Yellowstone Falls, Yellowstone river. These 33 meter high falls are the largest volume falls in the Rocky Mountains of the USA. The yellow rock around the river is a thermally degraded (hydrothe...
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Erlend Haarberg / Looking down on Rhyolite mountains at Landmannalaugar, Iceland August 2007
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Orsolya Haarberg / Rhyolite mountains at sunset, from the top of Haalda, Landmannalaugar, Fjallabak Nature Reserve, Iceland, September 2010
Erlend Haarberg / View from Blahnukur at sunrise above colourful rhyolite mountains, Landmannalaugar, Fjallabak Nature Reserve, Iceland, September 2010
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Erlend Haarberg / Cotton grass (Eriophorum sp) flowering in the Rhyolite mountains, Landmannalaugar, Iceland, August 2008
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Erlend Haarberg / Volcanic steam rising over the Brennesteinsalda and Rhyolite mountains, Landmannalaugar, Iceland, June 2008
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Nick Upton / 17th century Genoese watch tower perched on volcanic rock (rhyolite porphyry) headland, within a UNESCO World Heritage site and Corsica's National Park (Parc Naturel Regional de Corse). Corsica, Franc...
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Orsolya Haarberg / Rhyolite mountains at sunset, from the top of Haalda, Landmannalaugar, Fjallabak Nature Reserve, Iceland, September 2010
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Orsolya Haarberg / Mountain and valley landscape in Landmannalaugar along the Skalli Circle, Iceland, August 2010
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Orsolya Haarberg / View over the hot spring area from the top of Hrafntinnusker towards Haskerdingur, Fjallabak Nature Reserve, Iceland, August 2010
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Orsolya Haarberg / Rhiolite mountains at Landmannalaugar. Rhyiolite volcanism. Iceland. June 2008
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Orsolya Haarberg / Rhiolite mountains at Landmannalaugar. Rhyiolite volcanism. Iceland. June 2008
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Wild Wonders of Europe / O Haarberg / Rhyolite / Rhiolite mountains, Landmannalaugar, Iceland, June 2008
Orsolya Haarberg / Rhiolite mountains at Landmannalaugar. Rhyiolite volcanism. Iceland. June 2008
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Wild Wonders of Europe / O Haarberg / Solidified lava, Landmannalaugar, Rhiolite / Rhyolite mountains, Iceland, August 2008
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Orsolya Haarberg / Rhiolite mountains at Landmannalaugar. Rhyiolite volcanism. Iceland. June 2008
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Wild Wonders of Europe / O Haarberg / Rhyolite / Rhiolite mountains, Landmannalaugar, Iceland, June 2008
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Orsolya Haarberg / Rhyolite mountains at Landmannalaugar. Iceland. August 2008
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Orsolya Haarberg / Rhyolite mountains at Landmannalaugar. Iceland. August 2008
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Orsolya Haarberg / Rhyolite mountains at Landmannalaugar. Iceland. August 2008
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Orsolya Haarberg / Rhiolite mountains at Landmannalaugar. Rhyiolite volcanism. Iceland. June 2008
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Eric Baccega / View of rhyolite mountains and solidified lava, Landmannalaugar volcanic massif, Fjallabak Nature Reserve, Iceland. September, 2023.
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Eric Baccega / View of rhyolite mountains and solidified lava, Landmannalaugar volcanic massif, Fjallabak Nature Reserve, Iceland. September, 2023.
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Eric Baccega / View of rhyolite mountains and solidified lava, Landmannalaugar volcanic massif, Fjallabak Nature Reserve, Iceland. September, 2023.
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Eric Baccega / View of rhyolite mountains and solidified lava, Landmannalaugar volcanic massif, Fjallabak Nature Reserve, Iceland. September, 2023.
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Eric Baccega / View of rhyolite mountains and solidified lava, Landmannalaugar volcanic massif, Fjallabak Nature Reserve, Iceland. September, 2023.
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Eric Baccega / View of rhyolite mountains and solidified lava, Landmannalaugar volcanic massif, Fjallabak Nature Reserve, Iceland. September, 2023.
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Eric Baccega / View of rhyolite mountains and solidified lava fields with steam from geothermal vents, Landmannalaugar volcanic massif, Fjallabak Nature Reserve, Iceland. September, 2023.
Eric Baccega / RF - View of rhyolite mountains and solidified lava fields, Landmannalaugar volcanic massif, Fjallabak Nature Reserve, Iceland. September, 2023. (This image may be licensed either as rights managed or...
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Eric Baccega / RF - Aerial view of rhyolite mountains and geothermal vents, Landmannalaugar volcanic massif, Fjallabak Nature Reserve, Iceland. September, 2023. (This image may be licensed either as rights managed o...
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Eric Baccega / RF - View of rhyolite mountains and solidified lava fields, Landmannalaugar volcanic massif, Fjallabak Nature Reserve, Iceland. September, 2023. (This image may be licensed either as rights managed or...
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Eric Baccega / RF - View of rhyolite mountains and solidified lava fields, Landmannalaugar volcanic massif, Fjallabak Nature Reserve, Iceland. September, 2023. (This image may be licensed either as rights managed or...
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Orsolya Haarberg / Bright orange rhyolite volcanic rock, formed in mountains when silicon-rich elements of the Earth's crust melt, and the viscous fluid is forced to the surface, Landmannalaugar valley, Iceland. June, 2...
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Jack Dykinga / Sycamore (Acer sp) and Cottonwood (Populus sp) trees lining dry creek bed, rhyolite cliffs above. Cave Creek Canyon, Chiricahua Mountains, Coronado National Forest, Arizona, USA. November 2019.