Genome of Enigmatic Kennewick Skeleton Confirmed to be Native American

In 1996, a human skeleton washed out of a riverbank in Washington state. In time, searchers found roughly 90 percent of what was identified as a contemporary male of European descent. But carbon dating of the bones threw that ID out the window: the skeleton, which became known as Kennewick Man, was over 8,000 years old—he lived closer to a time when North America was devoid of humans than he did to the arrival of Europeans.

Source: Genome of enigmatic Kennewick skeleton confirms he was Native American

The skeleton did not wash up on the shores of the Columbia river, it was actually found by Will Thomas while watching the boat races (hydros) in the Tri-Cities and the rest of the skeleton was later found when they searched the area for more pieces.