Public lands
(e) “Public lands” means all Federal lands and interests therein located in Alaska except: (1) the smallest practicable tract, as determined by the Secretary, enclosing land actually used in connection with the administration of any Federal installation, and (2) land selections of the State of Alaska which have been patented or tentatively approved under section 6(g) of the Alaska Statehood Act, as amended ( 72 Stat. 341 , 77 Stat. 223 ), or identified for selection by the State prior to January 17, 1969 ;