Upstairs-Downstairs: Images of Iceland, From the Ground and From Space

Iceland is one of the few places on Earth where you can walk along a mid-ocean ridge.

ImaGeo iconImaGeo
By Tom Yulsman
Feb 16, 2020 7:00 PMFeb 17, 2020 5:27 PM
Hverfjall
A view into Hverfjall, a tephra cone volcano in Iceland that erupted explosively about 2,500 years ago. (Source: © Tom Yulsman)

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Wrapping around the entire globe, Earth's most extensive mountain range stretches for more than 40,000 miles.

Almost entirely submerged beneath the sea, it's known as the Mid-Ocean Ridge. It is, in essence, a giant seam bordered by mountains where tectonic plates are pulling apart. New oceanic crust forms here through volcanic activity.

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