The boundaries of the said districts are hereby established as shown on the “Official Zoning Map” of Smithfield Township, prepared by the Monroe County Planning Commission, dated May 25, 2021, as subsequently amended thereafter, incorporated herein by reference, and which is hereby made a part of this Chapter. The original of said map and said further amendments are on file in the Office of the Township Secretary. The said Zoning Map, as subsequently amended, is hereby made a part of this Chapter, together with this amendment, and all notations, references, and designations shown thereon shall be as much a part of this Chapter as if the same were all fully described and set forth therein. A copy of said map, indicating the latest amendments, shall be kept up to date, and displayed in the Township municipal building for the use and benefit of the public.