Indian Key State Historic Site was created in 1972.
Deutschheim State Historic Site was created in 1978.
Olana State Historic Site was created in 1872.
Mastodon State Historic Site was created in 1980.
Towosahgy State Historic Site was created in 1967.
Lorenzo State Historic Site was created in 1809.
Koreshan State Historic Site was created in 1961.
Clermont State Historic Site was created in 1782.
Waveland State Historic Site was created in 1848.
Knife River Indian Villages National Historic Site was created in 1974.
Vandalia State House State Historic Site was created in 1836.
Washington's Headquarters State Historic Site was created in 1725.
Battle of Carthage State Historic Site was created in 1990.