Miller made his way up to a hillside rock overhang on his farmland in Avella, Pennsylvania.There he noticed several curious objects in a recently dug groundhog hole.The overhanging sandstone ledges provided a perfect place for roving band of early humans to shelter from the elements.
In 1908, a rancher riding along an arroyo on his property near Folsom noticed what looked like large bones embedded in the embankment.
They turned out to be from gigantic Ice Age bison and other late Pleistocene megafauna, such as mammoths, and they had cut marks that had clearly been made by humans.
Picking them up, he realized they were of Native American origin.
However, Miller had absolutely no idea that he had stumbled upon a find that would ultimately change our understanding of the entire history of people in the Americas.
A fluke rainstorm at an ancient rock shelter in western Pennsylvania has brought a renowned archaeologist back to the site of where a furious debate was launched in 1973 over when the first humans came to the Americas.
As a young archaeologist, Jim Adovasio found radiocarbon evidence that humans had visited the Meadowcroft site 16,000 years ago.
The damage was unfortunate but presented an opportunity to re-examine the site, he said.
Meadowcroft is located on the banks of a small stream, about 7 miles upstream from the Ohio River.
n ancient tribe of hunter-gathers sharpened their flint spearheads in a rock shelter located in the southwestern part of present day Pennsylvania.