The authority of the Secretary of the Army to undertake or contribute to water resource development, including erosion control and flood control, on land or waters within the park shall be exercised in accordance with plans which are mutually acceptable to the Secretary of the Interior and the Secretary of the Army and which are consistent with both the purposes of this subchapter and the purposes of existing statutes dealing with water and related land resource development.

The Secretary is authorized and directed, in cooperation with the Secretary of Agriculture, the State of Ohio, and affected local governments, to undertake a program of and treatment for the purpose of restoring suitable vegetative cover to substantially eliminate erosion from all lands, public and private, within the authorized boundaries of the park. In the case of any private lands, within such authorized boundaries such treatment may be undertaken only with the consent of the owner thereof and shall be contingent upon assurances that such land treatment will be maintained by the owner for a period of not less than ten years. The Secretary shall, in conjunction with such program, take such actions as may be required to correct areas of ecological degradation which create hazards to health and safety.

have the effect of prohibiting the commercial and industrial use (other than a use for commercial farms and orchards) of all real property adjacent to the park;

aid in preserving the character of the park by appropriate restrictions on the use of real property in the vicinity including, but not limited to, restrictions upon: building and construction of all types; signs and billboards; the burning of cover; cutting of timber (except tracts managed for sustained yield); removal of topsoil, sand, or gravel; dumping, storage, or piling of refuse; or any other use which would detract from the aesthetic character of the park; and

have the effect of providing that the Secretary shall receive notice of any hearing for the purpose of granting a variance and any variance granted under, and of any exception made to, the application of such law or ordinance.