16 U.S.C. § 410iii–4 — Acquisition of property

(a) Real property The Secretary may acquire land or interests in land inside the Park's boundaries, from willing sellers only, by donation, purchase with donated or appropriated funds, or exchange. (b) Boundary revision After acquiring land for the Park, the Secretary must (1) update the Park's boundary to include the newly acquired land, and (2) manage that new land under applicable law. (c) Personal property The Secretary may acquire personal property connected with and appropriate for interpreting the Park. (d) Conservation easements and covenants The Secretary may acquire conservation easements and enter into covenants on land in or next to the Park, from willing sellers only, to protect the scenic, natural, and historic resources on that nearby land and preserve the Park's natural or historic setting as seen from inside or outside the Park. (e) Support facilities The National Park Service may acquire, from willing sellers, land outside the Park's boundary but close by, to build visitor, administrative, museum, curatorial, and maintenance facilities.