Prehistoric cultural affiliation(s) include Modoc dating back to 6999 BC.
The famous person Capt. Jack is associated with one of more of the Siskiyou County historic places.
Some of the country's most noteable architects helped create the Siskiyou County places including William Weeks, Weed Lumber Co., D.D. Hufford, William L. Harlow, James E. Thomas and Edward Cavanaugh. Prominent architectural styles found in Siskiyou Country are Classical Revival, Greek Revival and Italianate.