16 U.S.C. § 460jjj-4
Land and interests in land within the boundaries of the recreation area that are owned by the State of New Mexico, or a political subdivision of New Mexico, may be acquired only by donation or exchange.
Subject to paragraph (2), the Secretary may acquire land and interests in land within the boundaries of the recreation area by donation, purchase with donated or appropriated funds, or exchange.
The Secretary may not acquire lands within the recreation area without the consent of the owner thereof unless the Secretary has determined that such lands will be put to a use different from their use as of October 12, 1993, and that such new use would be incompatible with the protection of the natural and cultural resources of the recreation area.
16 U.S.C. § 460jjj-4