- Cartwright Tunnel & Fairview Lift Bridge (Cartwright)
- Fort Union Trading Post (Buford)
- Fort Buford (Buford)
- Missouri-Yellowstone Confluence Interpretive Center (Buford)
- Frontier Museum (Williston)
- Buffalo Trails Museum (Epping)
- Norseman Museum (Tioga)
- Pioneer Trails Museum (Hanks)
- Ray Opera House (Ray)