30 U.S.C. § 291 — Lease of gold, silver, or quicksilver deposits on lands title to which confirmed by Court of Private Land Claims

This applies to gold, silver, or quicksilver deposits — and any mines or minerals of the same kind — found on land where a claim was confirmed by the Court of Private Land Claims, but where the original grant did not give the mineral rights to the person who received the land, and that person hasn't gotten those mineral rights some other legal way since then. In that situation, the Secretary of the Interior may lease those mineral deposits to the person who received the land grant, or to whoever now holds their claim through them. The lease runs for twenty years, and the person leasing it has the first right to renew it for more 20 additional periods of ten years each. The Secretary of the Interior sets the reasonable terms and conditions for the lease, unless some other law already spells out different terms by the time a renewal period ends.