Chief Plenty Coups' (Alek-Chea-Ahoosh) Home, located in the state park, is a National Historic Landmark with several contributing resources.

[5] In 1883, he settled on an allotment of 320 acres (130 ha)[4] on the Crow Indian Reservation where he had seen his vision, and built a log homestead beginning in 1884.

[8]Upon Chief Plenty Coups' death in 1932, the Big Horn County Commission assumed responsibility and employed a caretaker for the farm and buildings.

[8] Neglect took a toll through the decades of the 1950s and 60s and under threat of lawsuit, the state,[9] along with tribal and private donors, built a visitor center and museum in 1972.

[7] In 2003, the state spent US$600,000 (equivalent to $994,000 in 2023) on renovations and improvements to the museum including the addition of a fire suppression system and other building safety features and refurbishment of the interpretative displays.