Idaho Code § 21-512

The state board of land commissioners is hereby authorized to lease any state lands adjacent to any public airport, or adjacent to lands acquired for use in connection with such airport, for public airport purposes, or for use in connection with such airport, upon such conditions as the board may determine for the best interests of the state, and for such term as said lands shall be used or be deemed desirable for use in connection with such public airport, provided, however, that any granted lands from the United States government to the state under the provisions of section 5 of the Idaho Admission Bill [26 Stat. at Large, ch. 656, p. 215] may be leased for a term not exceeding five (5) years.