On or before the first day of August 1904, each telephone or telegraph company owning or operating a telephone or telegraph line, any part of which lies within the state of Iowa, shall file with the several county auditors of the counties within which any part of its line is located, a map of all its lines within said county, except its line within any platted city, drawn to a scale of not less than one inch to four miles, on which the location of the line or lines of said company is correctly shown. The map of any line situated upon any highway or street which is the dividing line between taxing districts shall show on which side of said street or highway said line is situated and shall locate all points at which said line may cross said street or highway. A statement showing the length of pole line in each taxing district of each company shall be filed when no map of the pole lines of such company is required under the terms of this section. A telephone or telegraph company whose line is situated upon the right-of-way of a railway may file, in lieu of the map required to be filed by the provisions of this section, a certificate setting forth along what lines of railway said company’s telephone or telegraph line extends. On or before the first day of March 1905, and annually thereafter, like maps, statements, or certificates shall be filed with the several county auditors of counties in which any part of said lines may have been extended, constructed, relocated, or taken down entirely, during the preceding calendar year, showing the correct location of all such new or relocated lines, and the location of any part abandoned or taken down, as the same existed on the thirty-first day of December preceding; provided county auditors of the several counties shall, upon application of any company owning or operating a telephone or telegraph line in their respective counties, furnish a map or maps accurately showing the boundaries of all taxing districts in said county, and the public highways located within such taxing districts.