DR JUERG ALEAN / SCIENCE PHOTO LIBRARY DR JUERG ALEAN / SCIENCE PHOTO LIBRARY
Mount Jefferson volcano, Oregon, USA, forming a backdrop to fields of freshly harvested hay. The cone of this stratovolcano rises over a kilometre above the surrounding plains, reaching a height of 3199 metres above sea level. Several glaciers flow down its snow-clad sides. The volcano is part of the Cascades mountain range, and was named after US President Thomas Jefferson by the Lewis and Clark Expedition (1804-1806). Mount Jefferson last erupted more than 40,000 years ago.
Model release not required. Property release not required.