I live in the Edmonton area.

I was taught in the 1960's that the Woodland Cree spread West from Upper Canada (Ontario) in early 1600's and slaughtered and enslaved the local Western Canadian aboriginals to steal their furs to trade with the Europeans.

Today the only 'aboriginals' left in Central Alberta are the Northern Cree. Hard to see why they are the 'First Nation' of Alberta when they got here only a hundred years before the Europeans.

I read a tweet last month by Stephen Macintyre (Climate Audit) that cited evidence that the Arizona Apaches were originally from Northern Alberta, but had left/been driven out thousands of years ago.