( 42 U.S.C. 7472 ). (F) The presence of such other resource values as the Secretary concerned may by rule specify, determined based upon field testing that verifies such values. (G) The designation of such lands, or adjacent lands, as a Research Natural Area. (H) The presence on such lands of a sacred site of an Indian tribe, as those terms are defined in Executive Order 13007, or other cultural and religious values. (3) A determination under this subsection of suitability for mineral activities shall be made after publication of notice and an opportunity for submission of public comment for a period of not less than 60 days. (4) Any determination made in accordance with this subsection with respect to lands shall be incorporated into each Federal land use plan applicable to such lands, at the time such plan is adopted, revised, or significantly amended pursuant to any Federal law other than this Act. (c) Existing operations Nothing in this section shall be construed as affecting lands on which mineral activities were being conducted on the date of enactment of this Act under an approved plan of operations or under notice. II Environmental Considerations of Mineral Exploration and Development 201. General standard for hardrock mining on Federal land Notwithstanding section 302(b) of the Federal Land Policy and Management Act of 1976 ( 43 U.S.C. 1732(b) ), the first section of the Act of June 4, 1897 (chapter 2