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Geography · entry 49 of 52
Mountains appear on every continent, including ranges hidden beneath the Antarctic ice.
The longer version
Mountain building happens wherever the crust is compressed, stretched or heated from below, so no continent is without ranges. Erosion wears old ranges down, but the roots of ancient belts remain in the rock record. Some chains are buried beneath younger sediment or, in polar regions, beneath ice.
Ice sheets hide the terrain below them, and only radar and sound based surveys reveal the shape of the bedrock. Ranges there formed long before the ice arrived, and some peaks poke through the surface as isolated summits called nunataks. The hidden relief is comparable in scale to ranges found on other continents.
Where this entry sits
These facts wander across maps, borders, deserts, rivers, mountains, and the extreme corners of the natural world. Each one is short and self-contained, offering a small surprise about places you may never visit rather than anything you actually need. The full list sits on the Geography page, where every entry is listed in order.
More From Geography
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Read 52Medieval mapmakers sometimes drew sea monsters in unknown regions as a warning to sailors.
Read 1The Sahara is the largest hot desert on Earth, stretching across much of northern Africa.
Read 2Antarctica holds most of the world's fresh water, though it is locked away in ice.
Read 3Mount Everest rises higher above sea level than any other mountain on the planet.
Read 4The Amazon River carries more water into the ocean than any other river.
Read 5Australia is the only country that occupies an entire continent by itself.
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