INCORPORATION OF ZONING MAP. The locations and boundaries of the districts are shown on the Village Zoning Map, adopted by the Village Board, and referred to by reference as the Official Zoning Map, Village of Wittenberg, Wisconsin. Such Map, together with all explanatory matter and regulations thereon, is an integral part of this chapter and all amendments thereto. Official copies of the Zoning Map, together with a copy of this chapter, shall be kept by the Clerk-Treasurer and shall be available for public inspection during office hours. Any changes or amendments affecting district boundaries shall not be effective until recorded and the certified change is filed with the Map.