The annual Great Balloon Rally is Sept. 11 and 12 at the Mitchell airport. The dome renovations were completed in January 1999. A computer lab is still being renovated. Visitors have the chance to see professional archaeologists excavate two underground lodges inside the facility. The dwellers, who lived in the area 1,000 years ago, are said to be ancestors of the Mandan Indian tribe.
Visitors can get hands-on experience, helping to wash artifacts.
Most commonly found are pottery pieces, tools and weapons. They can dig for artifacts in a sandbox-type area. It's the only National Historic Archeology Landmark open to the public. Heritage Hall Museum and Archives - Located in Freeman, this museum includes a large collection of cultural artifacts , four outbuildings, two historic churches, a schoolhouse and a furnished pioneer house. Well-preserved rich German heritage.