; and (B) closed not later than 5 years after the date of the last conveyance of land under this Act. (4) Costs (A) In general The Secretary or the State may assume costs or other responsibilities or requirements for conveying land under this Act that ordinarily are borne by the other party. (B) Adjustment If the Secretary or the State assume costs or other responsibilities under subparagraph (A), the Secretary or the State shall make adjustments to the value of the Federal land conveyed to the State to compensate the Secretary or the State, as applicable, for assuming the costs or other responsibilities. (5) Mineral land If value is attributed to any parcel of Federal land that has been selected by the State because of the presence of minerals under a lease entered into under the Mineral Leasing Act ( 30 U.S.C. 181 et seq. ) that is in a producing or producible status, and the lease is to be conveyed under this Act, the value of the parcel shall be reduced by the amount that represents the likely Federal revenue sharing obligation under the Mineral Leasing Act ( 30 U.S.C. 181 et seq. ) with the State, but the adjustment shall not be considered as reflecting a property right of the State. 6. Miscellaneous (a) In general Land or minerals conveyed under this Act shall be subject to all applicable Federal, State, and Tribal law. (b) Protection of Indian rights (1) Treaty rights Nothing in this Act modifies, limits, expands, or otherwise affects any treaty-reserved right or other right of any Indian Tribe recognized by any other means, including treaties or agreements with the United States, Executive orders, statutes, regulations, or case law. (2) Land or minerals held in trust Nothing in this Act affects— (A) land or minerals held in trust by the United States as of the date of enactment of this Act on behalf of, and for the benefit of, any Indian Tribe