The area of city impact within the unincorporated area of the county is particularly described in section 8-7-3 of this chapter and also set forth on the map attached as Exhibit A to Ordinance 101 on file in the office of the clerk of the district court, which map shall be in effect until amended or modified as allowed by law. (Ord. 101, 2-12-1996; amd. 2001 Code)