Failure to pay the claim maintenance fee or the location fee as required by sections 28f to 28l of this title shall conclusively constitute a forfeiture of the unpatented mining claim, mill or tunnel site by the claimant and the claim shall be deemed null and void by operation of law.
[Pub. L. 103–66, title X, § 10104], Aug. 10, 1993, [107 Stat. 406]; [Pub. L. 111–88, div. A, title I], Oct. 30, 2009, [123 Stat. 2908].)