There is established a zoning index map for Amador County; said map and all notations thereon are made a part of this title and are on file in the office of the county clerk. This map shall show "community areas," the general locations of areas now or hereafter precisely zoned, and shall serve as an index to the sectional maps which show the detail of precisely zoned areas.

There is established a series of sectional maps which show detailed zoning districts; said maps and all locations thereon are made a part of this title and are on file in the office of the county clerk. Each such map constitutes a subsection of this section, and shall be numbered in order of its adoption.