Prehistoric cultural affiliation(s) include Windust Phase, Cascade Phase, Nimipu Phase, Tucannon Phase, Chinese and Et Al. dating back to 10999 BC.
Several famous people are associated with these Idaho County historic places including Irad Meinert, Dr. Wilson Foskett and Frances Zaunmiller Wisner.
Some of the country's most noteable architects helped create the Idaho County places including Jurden Henry Elfers, Charlie Shepp, USFS, Stewart Aitken, C.E. Churchill, William Fox, CCC, US Forest Service, Englebert Gier and Jim Aitken. Prominent architectural styles found in Idaho Country are Bungalow/Craftsman, Romanesque and Classical Revival.