Rising seas threaten hundreds of Native American heritage sites along Florida`s Gulf Coast
(PHYSorg.com Archaeology & Fossils)

Native North Americans first arrived in Florida approximately 14,550 years ago. Evidence for these stone-tool-wielding, megafauna-hunting peoples can be found at the bottom of numerous limestone freshwater sinkholes in Florida`s Panhandle and along the ancient shoreline of the Gulf of Mexico.