; or (2) amends or modifies the application of any existing law (including regulations) applicable to land under the jurisdiction of the Secretary. III CONSERVATION 301. Designation of wilderness (a) In general In accordance with the Wilderness Act ( 16 U.S.C. 1131 et seq.), the following areas in the State are designated as wilderness areas and as components of the National Wilderness Preservation System: (1) Black butte river wilderness Certain Federal land managed by the Forest Service in the State, comprising approximately 11,117 acres, as generally depicted on the map entitled Black Butte River Wilderness—Proposed and dated April 13, 2017, which shall be known as the Black Butte River Wilderness. (2) Chanchelulla wilderness additions Certain Federal land managed by the Forest Service in the State, comprising approximately 6,212 acres, as generally depicted on the map entitled Chanchelulla Wilderness Additions—Proposed and dated July 16, 2018, which is incorporated in, and considered to be a part of, the Chanchelulla Wilderness, as designated by section 101(a)(4) of the California Wilderness Act of 1984 ( 16 U.S.C. 1132 note