The boundaries of the above districts are hereby established as shown on the map entitled Zoning Map of Dillon, South Carolina. The Map, together with all explanatory matter thereon, is hereby adopted by reference and declared to be a part of this ordinance. The official copy of the Zoning Map of Dillon shall be maintained in the office of the Code Enforcement Director. A duplicate copy shall be maintained in the office of the Municipal Clerk. All zoning district boundaries shall be clearly shown on the Zoning Map, and amendments to the Map shall be recorded immediately after adoption. The official copies of the Zoning Map shall be dated and attested by the Municipal Clerk, and shall be available for public inspection. The official Zoning Map and any amendments adopted by the Dillon City Council shall constitute the final authority for determination of district boundaries. It shall be unlawful for any person to make unauthorized changes to the Zoning Map.