2020-08-05, 17:05
Mexico Caves Reveal Ancient Ocher Mining
Now submerged caves in the Yucatán Peninsula contain remains of ocher-mining operations that date back at least 10,000 years.
-- Read more on ScientificAmerican.com
https://www.scientificamerican.com/podca...er-mining/
Now submerged caves in the Yucatán Peninsula contain remains of ocher-mining operations that date back at least 10,000 years.
-- Read more on ScientificAmerican.com
https://www.scientificamerican.com/podca...er-mining/