; boundaries Subject to valid existing rights, there is established as a unit of the National Park System in the State the San Gabriel National Recreation Area, which shall consist of approximately 51,107 acres of Federal land and interests in land in the State depicted as the Proposed San Gabriel Mountains National Recreation Area on the map entitled San Gabriel Mountains National Recreation Area and National Monument Expansion Proposal and dated October 5, 2015. (b) Map and legal description (1) In general As soon as practicable after the date of enactment of this Act, the Secretary shall file a map and a legal description of the Recreation Area with— (A) the Committee on Energy and Natural Resources of the Senate