The Kola Superdeep Borehole runs about 40,230 feet (12,262 meters) or 7.6 miles (12.2 kilometers) into Earth's surface. For perspective, the hole's depth is the height of Mount Everest and Mount Fuji
TIL that the Deepest Man-made Hole Ever Drilled was 12,262 Metres (40,230 ft); The Kola Superdeep Borhole in Russia. : r/todayilearned
China Is Drilling a 10,000-Meter-Deep Hole Into the Earth
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Why Did the Russians Seal Up the Kola Superdeep Borehole? | HowStuffWorks
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Why Did the Russians Seal Up the Kola Superdeep Borehole? | HowStuffWorks
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Kola superdeep borehole – Deepest hole in the world – Wonderfulinfo
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Kola Superdeep Borehole - Wikipedia
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Why is China drilling down to 10,000 meters—one of the deepest holes in the world?
What did the Soviets discover in the Kola Superdeep well at a depth of 12,262 meters? - YouTube
WHAT WAS DISCOVERED DEEP UNDERGROUND? THE KOLA SUPERDEEP BOREHOLE - YouTube
Earth Observatory of Singapore - At just nine inches in diameter, the Kola Superdeep Borehole is the deepest hole that humans have ever dug. It took 20 years to drill to a
Kola Superdeep Borehole - Wikipedia
Mamas A. Mamas on Twitter: "Dig yourself out of this hole ! 😳 The Kola Superdeep Borehole is result of a Russian scientific drilling project that reached 12,262 metres (40,230 ft and
The World on Twitter: "The Soviets drilled the world's deepest hole into the earth for 14 years: it's 12,262 meters (40,230 ft) deep. http://t.co/ieVFBb0oZQ" / Twitter
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Why Did the Russians Seal Up the Kola Superdeep Borehole? | HowStuffWorks
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