; or (B) the legal description. (3) Availability The map and legal description shall be on file and available for public inspection in the appropriate offices of the Bureau of Land Management. (d) Use of conveyed land The land conveyed under this section shall be used only— (1) as an open riding area for the use of off-highway vehicles; or (2) for any other public purpose consistent with uses allowed under the Act of June 14, 1926 (commonly known as the Recreation and Public Purposes Act ) ( 43 U.S.C. 869 et seq.). (e) Administrative costs The Secretary shall require the County to pay all survey costs and other administrative costs necessary for the preparation and completion of any patents for, and transfers of title to, the land described in subsection (b). (f) Conditions As a condition of the conveyance under subsection (a), the County shall agree— (1) to pay any administrative costs associated with the conveyance including the costs of any environmental, wildlife, cultural, or historical resources studies; (2) to release and indemnify the United States from any claims or liabilities that may arise from uses carried out on the land described in subsection (b) on or before the date of enactment of this Act by the United States or any person; and (3) to accept such reasonable terms and conditions as the Secretary determines necessary. (g) Reversion If the land conveyed under this section ceases to be used for a public purpose in accordance with subsection (d), the land shall, at the discretion of the Secretary, revert to the United States.