Archaeologists say they have discovered the oldest known evidence for intensive ochre mining worldwide, at least 48,000 years ago, in Lion Cavern at Ngwenya...
Geologists have discovered 1.2-billion-year-old groundwater about 3 km below surface in Moab Khotsong, a gold- and uranium-producing mine in South Africa....
Intact artifacts and features found at the Powars II site, a red ocher (also known as hematite) quarry located in the foothills of the southern Rocky Mountains...