Well one push factor would be they wanted to escape religious and political prosecution. Another is the Potato Famine. This was when their potatoes were contaminated and many died from starvation and disease.
I hope this helps somehow ;)
The Ozark Plateau is heavily forested and contains many hills. It is he most extensive interior highland region between the Rockies and the Appalachians.
The area is known for sandstone hills and ridges.
The Virginia Declaration of Rights I believe.