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I think you're referring to the hole drilled in Oklahoma back in the seventies: https://en.wikipedia.org/wiki/Bertha_Rogers https://en.wikipedia.org/wiki/Bertha

by eloff 5y ago

I think you're referring to the hole drilled in Oklahoma back in the seventies: https://en.wikipedia.org/wiki/Bertha_Rogers https://en.wikipedia.org/wiki/Bertha_Rogers