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Mt. Damavand, Iran is featured in this image photographed by an Expedition 10 crewmember on the International Space Station (ISS). Located approximately 50 kilometers to the northeast of Tehran, Mt. Damavand is an impressive stratovolcano that reaches 5,670 meters (18,598 feet) in elevation. Damavand, which is part of the Alborz mountain range that borders the Caspian Sea to the north, is believed by scientists to be a young volcano that has mostly formed during the Holocene Epoch (over approximately the last 10,000 years). The western flank of the volcano includes solidified lava flows with flow levees – “walls” formed as the side edges of flowing lava cooled rapidly, forming a chute that channeled the hotter interior lava. Two such flows with well-defined levees are highlighted by snow on the mountainside (center). Damavand is the highest peak in Iran and the highest volcano in the Middle East.