Meadowcroft Rockshelter
Archaeologist James Adovasio talked about his work sifting through layers of human history dating back 19,000 years inside a rural Pennsylvania stream valley rock shelter. He explained why t…
1,664 viewsArchaeologist James Adovasio talked about his work sifting through layers of human history dating back 19,000 years inside a rural Pennsylvania stream valley rock shelter. He explained why t…
1,664 views