Originally built to house the Stockmen’s National Bank, this solid structure represents typical pre-1900s commercial architecture. Its 1890 construction is significant as one of the few buildings erected after Fort Benton’s heyday and before homesteaders flocked to Montana in the twentieth century. Arched windows and front corner quoins add visual interest to this historic institution, which later accommodated the Chouteau County Bank and First Bank System. The ornate, one-story extension at the rear was added in 1918.