> even more massive Kola Superdeep Borehole? Kola Superdeep Borehole is not mass... | Hacker News

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troupo 24 days ago | parent | context | favorite | on: Holes

> even more massive Kola Superdeep Borehole?

Kola Superdeep Borehole is not massive. It's a small cylindrical hole in the ground: https://en.wikipedia.org/wiki/Kola_Superdeep_Borehole#/media...

Mponeng is a massive continuously commercially operating mine with 5k workers

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