Except as otherwise provided in sections
459b to
459b–8 of this title, the property acquired by the Secretary under such sections shall be administered by the Secretary subject to the provisions of sections
1,
2,
3, and
4 of this title, as amended and supplemented, and in accordance with laws of general application relating to the national park system as defined by sections
1b to
1d of this title; except that authority otherwise available to the Secretary for the conservation and management of natural resources may be utilized to the extent he finds such authority will further the purposes of sections
459b to
459b–8 of this title.