17 Pa. Code § 17.2
A Natural Area is an area within a State Park of unique scenic, geologic or ecological value which will be maintained in a natural condition by allowing physical and biological processes to operate, usually without direct human intervention. These areas are set aside to:
The provisions of this § 17.2 adopted August 20, 1993, effective August 21, 1993, 23 Pa.B. 3943.
This section cited in 17 Pa. Code § 17.201 (relating to definitions).