The zoning map of the City of Monahans which is made a part of this article shall be in duplicate originals, and is hereby adopted in duplicate originals, each of which shall bear the signature of the mayor and attestation of the city secretary for identification and authentication; one (1) of said duplicate originals, together with Ordinance Number 486, shall be enrolled by the city secretary upon the minutes of ordinances; the other duplicate original shall be filed with the city secretary and preserved by him as a duplicate original copy of the zoning map of the City of Monahans.

When definite distances in feet are not shown on the zoning map the district boundaries on the zoning map are intended to be along existing street, alley or property lines or extensions of or from the same. When the location of a district boundary line is not otherwise determined, it shall be determined by the scale of the map measured from a given line. When the street layout actually on the ground varies from the street layout as shown on the zoning map, the board of adjustment may apply the designations shown on the mapped streets in such a way as to carry out the intent and purpose of the plan for the particular area in question.