Permanent Exhibition: The Bison: American Icon, Heart of Plains Indian Culture features more than 1,000 Northern Plains Indian artifacts such as clothing, regalia, tools, and weapons, as well as works of art highlighting Northern Plains Indian culture. This comprehensive exhibition addresses the crucial historical and cultural role of the bison for all people in the Northern Plains between 1800 and 2008. It also examines the ways in which this impressive animal has emerged as an American cultural icon.