Sheridan County Montana has 7 places on the National Register of Historic Places including 1 place of Statewide significance. Significant places include Tipi Hills, Comertown Historic District, Larsen, Aage and Kristine, Homestead, Outlook Depot and Raymond Grain Elevators Historic District.
Prehistoric cultural affiliation(s) include Folsom and Yuma dating back to 2999 BC.
Some of the country's most noteable architects helped create the Sheridan County places including Ibberson Co. and J.J. Vossen. Prominent architectural styles found in Sheridan Country are .