Section 2
SEC. 2. Section 6 of the same Decree is hereby amended to read as follows: "SEC. 6. Establishment and Reversion of Mineral Reservations. Upon the recommendation of the Secretary, based on the report submitted by the Director, the President may set aside and establish an area of the public domain as a mineral reservation and prescribe the terms and condition for its disposition and operation, or may alter or modify the boundaries thereof from time to time or revert any mineral reservation to the public domain without prejudice to any prior subsisting rights. "When lands within reservations which have been established for purposes other than mining are found more valuable for their mineral contents, they may, upon recommendation of the Secretary, be withdrawn from such reservation by the President and established as a mineral reservation."