1. Short title This Act may be cited as the ANCSA Admiralty Island Land Exchange Finalization Act of 2017 . 2. Admiralty Island National Monument land exchange (a) Definitions In this section: (1) Sealaska The term Sealaska means the Sealaska Corporation, a Regional Native Corporation established under the Alaska Native Claims Settlement Act ( 43 U.S.C. 1601 et seq.). (2) Secretary The term Secretary means the Secretary of Agriculture. (b) Land exchange If Sealaska relinquishes to the United States all right, title, and interest in and to the land described in subsection (c)(1), the Secretary, not later than 90 days after the date of the relinquishment, shall convey to Sealaska all right, title, and interest in and to the land described in subsection (c)(2). (c) Land described (1) Sealaska land The land to be relinquished by Sealaska to the United States under subsection (b) is the subsurface estate to the approximately 23,000 acres of subsurface land depicted as Sealaska Lands to U.S. Forest Service on the map entitled Sealaska Land Exchange—Sealaska Admiralty Island National Monument Lands and dated March 10, 2016. (2) Federal land The Federal land to be conveyed to Sealaska under subsection (b) is the surface and subsurface estate to the approximately 8,872.5 acres of Federal land and the surface estate to approximately 5,145 acres of Federal land depicted as U.S. Forest Service Land to Sealaska on the map entitled Sealaska Land Exchange—U.S. Forest Service Lands and dated March 10, 2016. (d) Withdrawal Subject to valid rights in existence on the date of enactment of this Act, the Federal land described in subsection (c)(2) is withdrawn from— (1) all forms of entry, appropriation, or disposal under the public land laws; (2) location, entry, and patent under the mining laws; and (3) disposition under all laws pertaining to mineral and geothermal leasing or mineral materials. (e) Maps The maps described in subsection (c) shall be maintained on file in— (1) the office of the Chief of the Forest Service