Non-historian here:
Because the west was settled later there are many tribes that maintained some level of cultural continuity. They would probably be your best source / starting point.
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Non-historian here:
Because the west was settled later there are many tribes that maintained some level of cultural continuity. They would probably be your best source / starting point.
Funny enough, that itself is a very contentious question, in part because around that period a massive collapse of North American civilizations occurred. Whether this was because of European disease, or before European disease spread is also a contentious question.
The Mississippian Culture might interest you.