Section 717. Boundaries and map of local government to which territory is annexed

1. Within a reasonable time after an  annexation  pursuant  to  this  article,  the  governing  board  of  a  local  government to which
  territory has been so annexed shall cause (a) a survey to be made of the
  annexed territory, (b) the boundaries of the  same  to  be  marked  with
  monuments,  and  (c) a map to be made of such local government including
  the annexed territory. In  cooperation  with  the  local  government  or
  governments   in  which  such  territory  was  situated  prior  to  such
  annexation, it shall also cause a partial map to be made of  such  local
  government  or  governments,  which  map shall be sufficient to show the
  exclusion of such territory from such local government  or  governments.
  Copies  of  such  maps  shall be filed in the office of the clerk of the
  local government, in the office of the clerk of each county in which the
  affected local governments  are  situated  and  in  the  office  of  the
  secretary of state.