Los Estoraques Unique Natural Area was created on 1988-08-24.
The area of Los Estoraques Unique Natural Area is 562 square kilometers.
Ahihi-Kinau Natural Area Reserve was officially established in 1973 to protect the unique and fragile ecosystems found in the area, including volcanic features, lava fields, and nearshore marine environments.
The Channels Natural Area Preserve was created in 2008.
Snyder Middleswarth Natural Area was created in 1921.
Tandy Hills Natural Area was created in 1987.
Tideman Johnson Natural Area was created in 1940.
Union Bay Natural Area was created in 1972.
Dukes Research Natural Area was created in 1974.
Sielbeck Forest Natural Area was created in 1998.
Volo Bog State Natural Area was created in 1970.
Hill Country State Natural Area was created in 1984.
Cornwall Area of Outstanding Natural Beauty was created in 1959.