Humboldt Redwoods State Park was created in 1921.
Portola Redwoods State Park was created in 1945.
Jedediah Smith Redwoods State Park was created in 1929.
Armstrong Redwoods State Natural Reserve was created in 1934.
The area of Portola Redwoods State Park is 11.331 square kilometers.
Grizzly Creek Redwoods State Park was created in 1943.
Prairie Creek Redwoods State Park was created in 1925.
Navarro River Redwoods State Park was created in 1987.
Big Basin Redwoods State Park was created in 1902.
Henry Cowell Redwoods State Park was created in 1953.
The area of Henry Cowell Redwoods State Park is 18.709 square kilometers.
The area of Jedediah Smith Redwoods State Park is 40.469 square kilometers.