; (ii) to preserve the natural characteristics of the land in perpetuity; and (iii) to protect and enhance water quality, stream environment zones, and important wildlife habitat; and (B) be used for public purposes consistent with the Act of June 14, 1926 (commonly known as the Recreation and Public Purposes Act) ( 43 U.S.C. 869 et seq.). (4) Reversion If any land or portion of land transferred under this section is used in a manner that is inconsistent with this section, the land shall, at the discretion of the Secretary of Agriculture, revert to the United States. 103. Conveyance to Douglas County, Nevada (a) Definition of Federal land In this section, the term Federal land means the approximately 7,951 acres of Federal land located in the County that is identified as Douglas County Conveyances on the Map. (b) Authorization of conveyance Subject to valid existing rights and notwithstanding the land use planning requirements of section 202 of the Federal Land Policy and Management Act of 1976 ( 43 U.S.C. 1712 ), not later than 180 days after the date on which the Secretary concerned receives a request from the County for the conveyance of the Federal land, the Secretary concerned shall convey to the County, without consideration, all right, title, and interest of the United States in and to the Federal land. (c) Costs Any costs relating to the conveyance authorized under subsection (b), including any costs for surveys and other administrative costs, shall be paid by the County. (d) Use of Federal land (1) In general The Federal land conveyed under subsection (b)— (A) may be used by the County for flood control or any other public purpose consistent with the Act of June 14, 1926 (commonly known as the Recreation and Public Purposes Act ; 43 U.S.C. 869 et seq.)