Designed for the National Park Service by North Dakota’s first academically credentialed Native American architect (1965, at North Dakota State University), this interpretive center invokes culturally expressive motifs of eagle trapping in its stylized ornamentation of an eagle’s head and talons integrated with curvilinear walls and circular central arrival space. The building’s symbolism and center-oriented organization provides an appropriate entrance portal to appreciation of the archaeological features and earthlodge reconstructions interpreted at this culturally powerful and spiritually evocative National Historic Landmark site.