; (2) to sustain this natural treasure for the current generation of Americans; and (3) to do everything possible to protect and preserve this magnificent natural ecosystem so that it may be bequeathed in its unspoiled natural condition to future generations of Americans. 3. Designation of additional wilderness, Arctic National Wildlife Refuge, Alaska (a) Designation A portion of the Arctic National Wildlife Refuge in Alaska comprising approximately 1,559,538 acres, as generally depicted on the map entitled Arctic National Wildlife Refuge, Coastal Plain Proposed Wilderness , dated October 20, 2015, labeled with Map ID 03–0172, and available for inspection in the offices of the Secretary of the Interior, is designated as a component of the National Wilderness Preservation System under the Wilderness Act ( 16 U.S.C. 1131 et seq.). (b) Administration The Secretary of the Interior shall administer the area designated as wilderness by subsection (a) in accordance with the Wilderness Act as part of the wilderness area already in existence within the Arctic National Wildlife Refuge as of the date of the enactment of this Act.