Siskiyou County California (Historic Districts) has 7 places on the National Register of Historic Places including 3 places of National significance and 1 place of Statewide significance. Significant places include Captain Jack's Stronghold, Hospital Rock Army Camp Site, Lava Beds National Monument Archeological District and McCloud and Dunsmuir Historic Commercial District.
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. Prominent architectural styles found in Siskiyou Country are Classical Revival, Gothic and Italianate.