Sielbeck Forest Natural Area was created in 1998.
The area of Sielbeck Forest Natural Area is 1,558,039.7226240002 square meters.
Lost Forest Research Natural Area was created in 1972.
Two Creeks Buried Forest State Natural Area was created in 1967.
The area of Lost Forest Research Natural Area is 36.26 square kilometers.
The opening at the edge of a forest is called a clearing. It is an area where there are few or no trees or vegetation, allowing more sunlight to reach the ground. Clearings can be natural or created by human activity.
Big Spring State Forest Picnic Area was created in 1936.
Tandy Hills Natural Area was created in 1987.
Tideman Johnson Natural Area was created in 1940.
Dukes Research Natural Area was created in 1974.
Union Bay Natural Area was created in 1972.
The Channels Natural Area Preserve was created in 2008.
Snyder Middleswarth Natural Area was created in 1921.