(a) The following units of the National Forest System are hereby expanded:
(1) Chugach National Forest by the addition of four areas, Nellie Juan, College Fjord, Copper/Rude River, and Controller Bay, containing approximately one million nine hundred thousand acres of public land, as generally depicted on the map entitled Chugach National Forest additionsproposed, and dated October 1978; and
(2) Tongass National Forest by the addition of three areas, Kates Needle, Juneau Icefield, and Brabazon Range, containing approximately one million four hundred and fifty thousand acres of public lands, as generally depicted on the map entitled Tongass National Forest additionsproposed, and dated October 1978.