The deepest hole in Antarctica
Over the last ~30 million years that Antarctica has been glaciated, ice has been exploiting a large fault that runs through this mountain range, enabling significant depths to be excavated. According to the automated mapping, the Byrd overdeepening stands at a depth of 2086 m, with its minimum point remarkably 2636 m below sea level. To put this into some context, that’s a hole big enough to bury Scafell Pike twice over…with room to spare!
The video below highlights the dominance of this overdeepening within the Antarctic landscape.