Super Beard Bros

Mr. Driller | Brett & Alex & a PS1 | Ep. #3 | Super Beard Bowl (108x49)

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The deepest hole ever dug by far is one on the Kola Peninsula in Russia near Murmansk, referred to as the "Kola well." It was drilled for research purposes beginning in 1970. After five years, the Kola well had reached 7km (about 23,000ft).