1. Short title This Act may be cited as the Berryessa Snow Mountain National Monument Expansion Act . 2. Definitions In this Act: (1) Board The term Board means the Board on Geographic Names established by section 2 of the Act of July 25, 1947 (61 Stat. 456, chapter 330; 43 U.S.C. 364a ). (2) Map The term Map means the map entitled Proposed Walker Ridge (Molok Luyuk) Addition Berryessa Snow Mountain National Monument and dated October 26, 2021. (3) Molok Luyuk The term Molok Luyuk means Condor Ridge (in the Patwin language). (4) National monument The term National Monument means the Berryessa Snow Mountain National Monument established by Presidential Proclamation 9298, dated July 10, 2015 (80 Fed. Reg. 41975), including all land, interests in the land, and objects on the land identified in that Presidential Proclamation. (5) Secretary The term Secretary means the Secretary of the Interior. (6) Walker Ridge (Molok Luyuk) Addition The term Walker Ridge (Molok Luyuk) Addition means the approximately 3,925 acres of Federal land (including any interests in, or objects on, the land) administered by the Bureau of Land Management in Lake County, California, and identified as Proposed Walker Ridge (Molok Luyuk) Addition on the Map. 3. National monument expansion (a) Boundary modification The boundary of the National Monument is modified to include the Walker Ridge (Molok Luyuk) Addition. (b) Map (1) Corrections The Secretary may make clerical and typographical corrections to the Map. (2) Public availability; effect The Map and any corrections to the Map under paragraph (1) shall— (A) be publicly available on the website of the Bureau of Land Management; and (B) have the same force and effect as if included in this Act. (c) Administration Subject to valid existing rights, the Secretary shall administer the Walker Ridge (Molok Luyuk) Addition— (1) as part of the National Monument; (2) in accordance with Presidential Proclamation 9298, dated July 10, 2015 (80 Fed. Reg. 41975)