Chouteau County Montana (Vacant / Not In Use) has 6 places on the National Register of Historic Places including 4 places of Statewide significance. Significant places include Fort Benton Bridge, Froggie's Stopping Place on the Whoop-Up Trail, Geraldine Milwaukee Depot and West Quincy Granite Quarry and Eagle Butte School.
Some of the country's most noteable architects helped create the Chouteau County places including Milwaukee Bridge & Iron Works, Ryane & Henry, John Swanson and Harrington Granite Works. Prominent architectural styles found in Chouteau Country are Bungalow/Craftsman.