76-1-502. Filing of map of jurisdictional area of county planning board — revision of boundaries. The planning board, after the approval of the jurisdictional area by the board of county commissioners, shall file in the office of the clerk and recorder a map showing the boundaries of the jurisdictional area. The boundaries may be revised from time to time by resolution of the board of county commissioners. Such revised boundaries shall be shown upon a map which shall be filed as provided in this section. The area included in such map shall constitute the area over which the planning board shall have advisory jurisdiction.