Where boundaries approximately follow street, alleys, or highways. Where district boundaries are indicated as approximately following the center line or street line of streets, the center line or alley line of alleys, or the center line of right-of-way line of highways, such lines shall be construed to be such district boundaries.

Where boundaries parallel street lines, alley lines or highway right-of-way lines. Where district boundaries are so indicated that they are approximately parallel to the center lines or street lines of streets, the center lines or alley lines of alleys, or the center lines of right-of-way lines of highways, such district boundaries shall be construed as being parallel thereto and at such distance therefrom as indicated on the Zoning Map. If no distance is given, such dimension shall be determined by the use of the scale shown on said Zoning Map.

Where boundaries approximately follow lot lines. Where district boundaries are indicated as approximately following lot lines, such lot lines shall be construed to be said boundaries.

Where the boundary follows a railroad line. Where the boundary of a district follows a railroad line, such boundary shall be deemed to be located midway between the main tracks of said railroad line.

Submerged areas not included in district. All areas within the territorial and extraterritorial limits of the City which are underwater and are not shown as included within any district shall be subject to all of the regulations of the district which immediately adjoins the water area. If the water area adjoins two or more districts, the boundaries of each district shall be construed to extend into the water area in a straight line until they meet the other district.

District regulations apply to schools, parks, etc. Any areas shown on the Zoning Maps as park, playground, school, cemetery, water, street, or right-of-way shall be subject to the zoning regulations of the district in which they are located. In case of doubt, the zoning regulations of the most restricted adjoining district shall govern.

Where property has not been included in district. In every case where property has not been specifically included within a district, the same shall automatically be classed as lying and being in the R1 Residential District until such classifications shall have been changed by an amendment to this chapter, as provided by law.

Vacation of public ways. Whenever any street, alley, or other public way is vacated in the manner authorized by the law, the zoning district adjoining each side of such street, alley, or public way shall be automatically extended to the center of such vacation, and all area included in the vacation shall then and henceforth be subject to all regulations of the extended districts.

Map entitled "Height Limitation Zoning Map, Reedsburg Airport, Sauk County, Wisconsin," dated June 23, 2008, and prepared by the Wisconsin Bureau of Aeronautics. (Sheet 1 of 1).[1]