Altai in southern Siberia is dead center Russian steppes. American Indians DNA has now been affirmatively traced to this region.
The America's were also the eventual home to migrating people from the Pacific Islands, and pre-history France.
Neolithic populations pre-dating the Siberian immigrations may have been wiped out by a meteor event similar to dinosaurs.
American Indians are not native at all, they are migrants no different than the colonists from Europe in the 15th century. So lets stop pretending, okay Cherokee people?
