Prehistoric cultural affiliation(s) include Late Prairie Archaic, Early-Middle Archaic and Plains Woodland dating back to 8999 BC.
The famous person Horace Greeley McMillan is associated with one of more of the Lyon County historic places.
Some of the country's most noteable architects helped create the Lyon County places including Iowa Falls & NW Railway Cedar Rapids. Prominent architectural styles found in Lyon Country are Late 19th And Early 20th Century American Movements.