Prehistoric cultural affiliation(s) include Mandan, Middle Plains Woodland and Middle Missouri dating back to 499 BC.
The famous person Lt. Col. George Armstrong Custer is associated with one of more of the Morton County historic places.
Some of the country's most noteable architects helped create the Morton County places including Salzmann, E. E., Builder and Van Horn and Ritterbush. Prominent architectural styles found in Morton Country are Bungalow/Craftsman, Late 19th And 20th Century Revivals and Late Gothic Revival.