
In 1935, a group of men discovered inside the Mammoth Cave, in Kentucky, the remains of an ancient Native American who had likely been mining the mineral gypsum from inside the cave when he had been trapped beneath a large boulder almost 2500 years ago [1067×2369]
by Fuckoff555
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[https://www.nps.gov/articles/000/prehistoric-cave-discoveries.htm](https://www.nps.gov/articles/000/prehistoric-cave-discoveries.htm)
[https://www.greatamericanhikes.com/post/the-mummies-of-mammoth-cave](https://www.greatamericanhikes.com/post/the-mummies-of-mammoth-cave)
What did they use gypsum for? Very interesting, thanks for sharing.