Natural Areas

Units the managing agency names or lists as a natural area, such as a State Natural Area or Nature Area.

Most are in Tennessee (59), North Carolina (19), Oregon (14). Counts are taken live from our profiles.

How we assign park types

Since October 2026 we take the type from the official name the managing state agency uses. A unit is a State Park only if the agency calls it “… State Park”. Otherwise it gets the type its official name states, such as State Recreation Area or State Historic Site. Every profile carries one type at most.

Units run by federal agencies, tribes or private operators, and parts of a larger park, carry no type. Their profiles say who runs them. Older assignments are being checked against the agencies, so a profile can still change type. More on our sources: editorial and review methodology.

Natural Areas by state

All 128 profiles, by state

Arizona

California

Florida

Illinois

Maryland

Massachusetts

Michigan

Missouri

New Hampshire

North Carolina

Oregon

Pennsylvania

South Carolina

South Dakota

Tennessee

Texas

Washington

Other park types

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