SIOUX FALLS, S.D. (AP) — The National Park Service is beginning to excavate the mouth of an unexplored cave in the Black Hills of South Dakota, and researchers believe it could help broaden our ...
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20 Places That Are Untouched by Human Unexploration
The concept of unexplored places feels almost impossible in our hyper-connected world of satellite imagery and GPS tracking. Yet beneath the Earth’s surface, deep within dense jungles, and under vast ...
(via MinuteEarth) Krubera Cave, one of our planet’s deepest known caves, extends 2200 meters into the earth – that’s a depth of nearly six Empire State Buildings. Or at least, that's as far down as ...
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