Fergus County Montana (Vacant / Not In Use) has 3 places on the National Register of Historic Places including 1 place of National significance and 1 place of Statewide significance. Significant places include St. Joseph's Hospital and Reed and Bowles Trading Post, Hagadone, Frank, Homestead.
Some of the country's most noteable architects helped create the Fergus County places including Alonzo Reed and John Bowles. Prominent architectural styles found in Fergus Country are .