; inclusion in national recreation area On transfer of the land described in paragraph (1), the transferred land— (A) may be exchanged by the Secretary for private land described in section 402(c)(5)— (i) subject to a conservation easement remaining on the transferred land, to protect the scenic resources of the transferred land; and (ii) in accordance with the laws (including regulations) and policies governing National Park Service land exchanges; and (B) if not exchanged under subparagraph (A), shall be added to, and managed as a part of, the National Recreation Area. (d) Addition to national recreation area Any land within the boundary of the National Recreation Area that is acquired by the United States shall be added to, and managed as a part of, the National Recreation Area. 404. General management plan Not later than 3 years after the date on which funds are made available to carry out this title, the Director of the National Park Service, in consultation with the Commissioner of Reclamation, shall prepare a general management plan for the National Recreation Area in accordance with section 100502 of title 54, United States Code. 405. Boundary survey The Secretary (acting through the Director of the National Park Service) shall prepare a boundary survey and legal description of the National Recreation Area.