20 ILCS 805/805-225

The Department has the power to acquire the fee or any lesser interests, including scenic easements, in real property in order to preserve, through limitation of future use, areas of great natural scenic beauty or areas whose existing openness, natural condition, or present state of use, if retained, would enhance the present or potential value of abutting or surrounding recreational area development or would maintain or enhance the conservation of natural or scenic resources.