The Chamberlain Days Inn Oacoma, off of Interstate 90 at Exit 260, is located on the scenic Missouri River. The area is surrounded by buttes that provide an impressive view on the wide Missouri River. The city offers museums of the old west and Indian cultures, such as the Akta Lakota Museum at the St. Joseph's Indian School. The Chamberlain Days Inn Oacoma lies 150 miles from the Badlands and 205 miles from Mount Rushmore. Amenities include an indoor heated pool and hot tub, continental breakfasts and cable TV with HBO.