§ 27-10-150

(a) During each year beginning at noon on September 1, and until patent is issued, annual labor shall be performed or improvements made on, or for the benefit of or development of, each mining claim in the state to the extent required by the laws of the United States applicable to Alaska. (b) If the owner of a mining claim fails to perform the annual labor or make the improvements required by the laws of the United States, the claim is forfeited and open to location by others as if no location of it had ever been made. (c) If the general laws of the United States requiring annual labor upon mining claims in Alaska are suspended or waived, administratively or by statute, the laws of the state requiring annual labor under this section upon mining claims are likewise suspended or waived upon the same terms and conditions.