At about 2,540 meters (8,333 feet) below sea level, the Bentley Subglacial Trench is the world's lowest dry elevation. Located in Western Antarctica, it was named for geologist Charles R. Bentley, currently a professor at the University of Wisconsin. Oddly enough, the the trench floor is covered by over 3,000 meters of snow and ice, which actually puts its surface above sea level.

Studies have shown that the Bentley Subglacial Trench lies on top of one of the largest volcanic caldera complexes on Earth.

...and that's all I've got...

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