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Tuesday, July 5, 2022

kola-drill-setup-superdeep

If you found our sinkholes galley interesting, here’s a hole for the record books. The  Kola Superdeep borehole in Russia is 12 264m deep! sharegoodstuffs.com
the-cap-of-the-kola-superdeep-borehole-in-russia-at-m-ft-its-the-deepest-hole-ever-drilled–26670

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