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Saturday, January 13, 2018

How deep have humans dug into the Earth?

We haven't dug as far into the earth's crust as you might think (in spite of what Jules Verne wrote): 

The typical grave is 6 feet down. 

Most Olympic swimming pools are 10 feet deep. 

Nile crocodiles dig burrows as deep as 39 feet deep. 

The Paris Catacombs are 65 feet underground.

The ancient city of Derinkuyu lies 279 feet below Turkey. 

The Greenbrier Bunker in W. Virginia, built to keep Congress safe in an emergency, is 720 feet underground.

The Woodingdean Well is 1,285 feet deep. It's the deepest hole that humans have dug by hand. 

The deepest known point in a cave is in Krubera Cave in Georgia. 

Switzerland's Gotthard Base Tunnel is the deepest railway tunnel. 

Mponeng in South Africa is the world's deepest gold mine.

The Kola Superdeep Borehole is only 9 inches wide. Russian scientists have been drilling it since 1970. It's now deeper than the deepest part of the ocean. The bottom is 356˚F, which is too hot for drills to go any further. 

In 2012, Exxon completed the Z-44 Chayvo Well. This oil well is the deepest humans have dug.

It would take another 60,000 feet to reach the end of the crust and another 21 million feet to the center of the Earth. 

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