Harmony Headlands State Park was created in 2003.
The area of Harmony Headlands State Park is 3,027,048.6039552 square meters.
Headlands Beach State Park was created in 1953.
Mendocino Headlands State Park was created in 1974.
State Forest State Park was created in 1970.
Snow Canyon State Park was created in 1958.
Lake Wappapello State Park was created in 1956.
Aztalan State Park was created in 1947.
Sizerville State Park was created in 1924.
Penwood State Park was created in 1944.
Peninsula State Park was created in 1909.
Pattison State Park was created in 1920.
Mears State Park was created in 1923.