Interesting to note that the first French explorers (Champlain) noted the European features the Indians on the east coast of Canada had, in comparison to those of the interior. The Vikings were clearly here for sometime, then absorbed into the various Indian bands.
It is safe to say the same thing happened elsewhere in North America, likely the west coast of North America. Mariner's lost at sea or walking the land bridge into NA.
My Mom is around 60 percent of a West coast tribe, what I thought was interesting was there was 3 percent Mongol in her ancestry. If I did the math right the Mongols would of been on the West coast not all that long ago historically speaking.
