Palaeo-Indian red ochre quarry identified as the earliest known mine in America
Radiocarbon analysis of well-preserved bison bone fragments revealed the earliest phase of red ochre mining began around 12,840 to 12,505 years ago.
Clovis
Footprints offer early evidence of human occupation in North America
These tracks could offer concrete evidence that humans reached North America before glacial advances closed the ice-free corridor and Pacific Coastal Route