The boundaries of the districts are hereby established as shown on the Zoning Map which accompanies the original Zoning Ordinance of the City, and which follows the text of this Zoning Code, as Appendix II, which Map, with all notations, references, and other information shown thereon, shall be as much a part of this Zoning Code as if fully described herein. The Official Zoning Map shall be on file in the City Clerk's office. The Planning Commission may maintain a Map or Maps of a larger scale for reference purposes.
(1975 Code § 5.21)