The location and boundaries of the land use zones listed in section 6-3-1 of this chapter are hereby established as delineated on the Malheur County zoning maps. Such boundaries, upon adoption of this title, shall be amended only in accordance with chapter 10 of this title. Any such amendment in boundaries shall be made upon a certified copy or copies of the zoning maps, and any such amendment in boundaries approved in accordance with chapter 10 of this title shall be adopted and by reference incorporated herein and made a part of this title. (Ord. 86, 12-7-1993)