The Sioux and Blackfoot were among the Native American groups that traditionally lived in the Interior Plains.

These groups adapted to the plains' open landscapes, relying on the region’s bison herds as a central part of their culture, diet, and economy. They lived a nomadic lifestyle, moving across the plains to follow bison migrations, and developed extensive knowledge of the land and its resources. The Sioux, Blackfoot, and other Plains tribes used bison hides for clothing and shelter, and their rich cultural heritage and deep connection to the land continue to be recognized in North America.