Section 11
SEC. 11. Upon the recommendation of the Secretary of Agriculture and Commerce, the President may set apart mineral land reservations, and he shall by proclamation declare the establishment of such reservations, and the boundaries thereof, and thereafter such reservations shall be closed or open to mining location or lease as the President may deem wise and may so provide in the proclamation. The President may, with the concurrence of the National Assembly, by proclamation alter or modify the boundaries of any mineral reserve from time or revoke any such proclamation, and upon such revocation, such reserve shall be and become part of the public domain as though no such proclamation had ever been made: Provided, however, that the President is hereby authorized to declare by proclamation any mineral reserve, closed to mining location: Provided, further, That all mineral reservations set aside by the Chief Executive prior to the approval of this Act shall remain in full force and effect and shall be administered and disposed of in accordance with the provisions of this Act.