http://www.rawstory.com/2016/05/remarkab...ida-river/
It's a long way from the Pacific NW to Florida.
Quote:Researchers who dove hundreds of times into a sinkhole beneath the brown murky waters of Florida’s Aucilla River have retrieved some of the oldest evidence of human presence in the Americas including stone tools apparently used to butcher a mastodon.
Scientists said on Friday the tools, animal bones and mastodon tusk found at the site showed that people already had occupied the American Southeast by 14,550 years ago, about 1,500 years earlier than previously known.
It's a long way from the Pacific NW to Florida.