There is further herein incorporated by reference and adopted, an official map delineating the boundaries of zoning districts and the classification of such districts, which map will be marked "Official Copy of the City of El Dorado, Kansas, Zoning Map 2001" and shall be filed with the city clerk to be open for inspection and available to the public at all reasonable business hours. (Ord. G-887 § 3, 2001: Ord. G-778 § 3, 1993)