Carter County Montana has 2 places on the National Register of Historic Places including 1 place of Statewide significance. Significant places include Medicine Rocks State Park, First National Bank of Ekalaka and Rickard Hardware Store Building, Medicine Rocks State Park dating back to 1.
Some of the country's most noteable architects helped create the Carter County places including V.E. Figg. Prominent architectural styles found in Carter Country are Early Commercial and Modern Movement.