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Q&A 30km deep canyon in Central Europe

Let's suppose that there is a canyon, several hundred kilometers in length, stretching from Leipzig to Geneva and reaching the depth of 30 kilometers. It is up to 60 kilometers wide, cutting throug...

3 answers  ·  posted 6y ago by MedwedianPresident‭  ·  last activity 6y ago by MedwedianPresident‭

Question geography earth alternate-earth